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Sports Economics

The top-heavy economy of professional sports.

How prize money and income concentrate at the top across individual and team professional sports. A directional synthesis of publicly reported earnings data, 2022–2025.

Sportzap15–18 min read

Much of professional sport runs on a winner-take-most economy.

Across the major individual sports surveyed — racquet, combat, water, snow, road, court, links — a small group of top-ranked athletes captures the overwhelming majority of prize money and sponsorship income, while the rest of the professional field struggles to cover travel, coaching, and basic living costs. In team sports, collective bargaining and salary minimums lift the floor inside the top league, but a similar concentration emerges the moment a player drops to the developmental tier.

This brief is intended as a directional overview of athlete-earnings concentration, not a peer-reviewed report. Figures are drawn from publicly reported data and modeled estimates; specific numbers vary by source and methodology. It synthesizes publicly reported earnings data (primarily covering the 2022–2025 seasons) across 13 individual professional sports, plus a deep dive into men's basketball and men's soccer to test the same thesis in the team-sport context. The pattern is consistent: across the sports surveyed, the Top 25 athletes often capture roughly half of all on-tour earnings, while the Top 100 typically account for the overwhelming majority, with the gap between the elite tier and the tier just below it forming an unusually steep income cliff relative to many traditional professions.

~55%
Median share of on-tour earnings captured by the Top 25 across 13 individual sports (mean ~59%)
~90%
Median share captured by the Top 100 (mean ~87%)

Median across 13 individual sports; means are Top 25 ~59% and Top 100 ~87%. The per-sport table below shows the full distribution.

Key takeaways
The top captures most of the available money.
In individual sports, the Top 25 take 40–85% of all prize money; the Top 100 take 75–95%. In team sports, the Top 25 take 15–22% of league wages — a meaningfully flatter curve that reflects salary-cap and CBA mechanics. But in both contexts, a small minority earns the majority of the money.
The middle struggles to live on competition income alone.
In individual sports, players ranked roughly 50–500 are still elite global competitors, but earn $10,000–$100,000 in annual competition income before expenses. In team sports, the elite-league floor is genuinely high, but the tier below it collapses sharply — and that's where most professional athletes actually compete.
Audience and engagement are real across all tiers.
The audience for most independent professional and team-sport athletes is large and engaged — but it has historically had no scalable mechanism to translate that engagement into income for the athletes themselves.

Independent professional athletes are a structurally underserved segment of the global sports economy. The bottom ~95% of the ranked field — players who are still elite global competitors — operate without the team-sport safety nets of guaranteed contracts, salary minimums, or revenue-sharing CBAs. Prize money alone rarely covers the cost of competing at the professional level once travel, coaching, and equipment are factored in.

In team sports the picture inverts at the top: NBA salary-cap rules, Premier League revenue distribution, and MLS minimums protect the elite-league floor. But the moment a player drops to the G League, English League Two, or the MLS reserve roster, the income cliff becomes as severe as anything in individual sport.

Top-heavy across the board.

Across every individual sport surveyed with publicly reported earnings, the same shape appears: a steep curve where a handful of stars earn millions while the field flattens to near-zero income within 50–100 ranking spots. The table below summarizes the approximate share of total on-tour earnings (prize money plus, where data exists, league or contract pay) captured by the Top 25 and Top 100 athletes.

Top 25 shareTop 100 share
Tennis (ATP / WTA)~50%~90%
Pickleball (UPA / PPA)~70%~90%
Boxing~70%~88%
UFC / MMA~45%~80%
Swimming (World Aquatics)~55%~80%
Track & field (Diamond Lg)~55%~85%
Road cycling (UCI WT)~60%~85%
Alpine skiing (FIS)~80%~95%
Marathon (WMM)~60%~85%
Triathlon (T100 / Ironman)~45%~85%
Badminton (BWF)~50%~85%
Table tennis (WTT)~40%~80%
Golf — PGA Tour~43%~90%

Figures are directional concentration estimates derived from public money lists, disclosed prize distributions, contract disclosures, and reported top-earner totals relative to known compensation pools. Because compensation systems vary widely across sports, percentages should be interpreted as approximate indicators of earnings concentration within each sport rather than directly comparable economic measurements. See methodology note at the end.

Sources
ATP/WTA 2025 prize-money rankings (atptour.com, Tennisnerd); Sportico tennis prize-money tracker (Feb 2026); DinkBank pickleball earnings analysis; UPA contract disclosures; PGA Tour Official Money List 2025; LPGA 2025 Money List; Golf Monthly tour earnings analyses; J. Osorio boxing earnings study (2009–2017); Front Office Sports UFC top-50 earnings; UCI / CyclingUpToDate WorldTour salary data; World Aquatics 2024 prize-money disclosure; Wanda Diamond League 2025 prize structure; FIS World Cup money rankings; TriRating 2025 money list.

Read these numbers as the floor, not the ceiling. When you layer in sponsorship and endorsement income — almost entirely captured by the very top of the rankings — the concentration becomes even steeper. PV Sindhu, ranked world #11 in badminton in 2023, earned only about $100,000 in on-court prize money that year — but pulled in roughly $7 million in endorsements, making her one of the world's highest-paid female athletes despite a modest competitive season. Pickleball world #1 Anna Leigh Waters earned roughly $3M in 2025, of which prize money was a small fraction. LPGA's Nelly Korda earned roughly $11M in endorsements on top of her $3M in on-course earnings.

Tennis — a steep disparity from top to bottom.

Tennis shows the same shape. In 2025, Jannik Sinner and Carlos Alcaraz alone earned a combined $37.9M in on-court prize money on the ATP Tour — more than triple the third-place finisher and approximately comparable to (likely exceeding) the combined prize money of much of the lower-ranked field. The third-highest earner, Alexander Zverev, took home $6.0M; by rank 20, annual prize earnings fall to roughly $2M, and they drop sharply from there.

$37.9M
Combined Sinner + Alcaraz 2025 on-court prize money
$10–80K
Typical annual prize money for ranks 251–500
45x
2025 US Open champion vs. first-round loser payout gap

Players ranked roughly #100 to #500 — clearly serious touring professionals competing across ATP, Challenger, and Grand Slam qualifying events — earn modest sums relative to their costs of competing. By comparison, mid-roster players in major team sports — backed by salary minimums and CBAs — earn six- and seven-figure base salaries with expenses paid, regardless of where they sit on the depth chart.

The within-event disparity is just as stark: at the 2025 US Open, the singles champion earned $5M while a first-round loser earned $110K — a 45x gap inside one tournament. The flywheel is structural: higher rankings unlock entry to higher-tier tournaments (Masters 1000s, Slams, ATP Finals) — which are themselves winner-take-most. The ATP Finals only invites the top 8 players and pays $5M+ to the winner.

Sources
ATP 2025 final prize-money list (atptour.com; Tennisnerd Top 20 2025 ATP earnings); Sportico tennis prize-money tracker (Feb 2026); 2025 US Open official prize-money breakdown; Top 100 / Top 250 figures modeled from ATP prize-money distribution curves and ATP Baseline thresholds.

Pickleball — the fastest-growing sport with the narrowest pay pyramid.

Pickleball's professional ecosystem is small, fast-growing, and extremely top-heavy. The United Pickleball Association (UPA), formed via the 2024 PPA / MLP merger, projects up to $31M in total player earnings for 2026. But that pool is split among a tightly contracted roster, with the headline numbers monopolized by a handful of stars.

$2.5M
Ben Johns 2024 earnings (mostly endorsements)
$3M+
Anna Leigh Waters 2025 earnings
<1%
Of pros that clear seven figures

Ben Johns disclosed $2.5 million in 2024 earnings on CNBC — the vast majority from endorsements (Franklin Sports, JOOLA, Jigsaw Health), with prize money a relatively small slice. Anna Leigh Waters leads women's earnings at an estimated $3M+ in 2025 — combining tournament wins with sponsorships from Paddletek, Fila, Lock Laces, and Babolat. The 2025 DinkBank report shows the gap between the top 10 and the rest of the women's pro field widens dramatically once you exit the contracted player tier.

With so few tournaments offering meaningful purses and non-contracted players competing for reduced prize money, pickleball appears to have one of the steeper income curves among emerging professional sports. The DinkBank top-10 list captures an outsized share of the entire PPA + MLP + APP prize pool — well above 80%.

Sources
DinkBank 2025 Top Prize Money Earners report; Eleven Social Club analysis; Pickleball.com (UPA contract structure); Sports Economist top-paid rankings.

Boxing & MMA — a wide gap from top to bottom.

Boxing's top end has exploded in the Saudi-backed era while its long tail has remained at subsistence levels. According to Sportico's 2024 highest-paid athletes analysis, just six boxers — Tyson Fury ($147M), Oleksandr Usyk ($122M), Canelo Álvarez ($73M), Anthony Joshua ($60M), Jake Paul ($48M), and Naoya Inoue ($42M) — earned a combined $492 million in 2024 alone.

$492M
Earned by just 6 boxers in 2024
$147M
Tyson Fury alone in 2024
$8–25K
Typical journeyman annual earnings (before cuts)

BoxRec lists more than 10,000 active professional boxers globally; the vast majority earn between $1,000 and $4,000 per fight in their early careers and $5,000–$10,000 per fight at the journeyman level. With most boxers fighting 4–7 times per year, typical full-year earnings for a working journeyman fall in the $8,000–$25,000 range before promoter, manager, and trainer cuts (which can reach 40–50% of gross). A 2009–2017 academic study of all U.S. boxer purses found that 92% were below the U.S. median household income. Most pro boxers hold a second job.

UFC / mixed martial arts. MMA is more equally distributed at the bottom (the UFC's $12k/$12k contract minimum — $12k to show up, $12k to win — lifts the floor) but its top is just as concentrated. Conor McGregor's career UFC earnings exceed $114 million; the top 5 highest-paid UFC fighters represent ~45% of total earnings across the top 50 of all time. In 2022, the median UFC fighter made roughly $91,250 while only two fighters cleared $1M in disclosed pay — and 70 active fighters earned less than $20,000.

The UFC's $375 million class-action settlement over fighter-pay suppression (final approval 2025) intensified scrutiny around how constrained mid-tier MMA earnings may be. After typical deductions — 10% to coaches, 15% to managers, 35% to taxes — fighters keep roughly 40% of gross purse.

Sources
Sportico 100 Highest-Paid Athletes 2024; Ring Magazine analysis (Feb 2025); EssentiallySports 2024 boxing earnings breakdown; Statista / Forbes highest-earning boxers 2024; Josue Osorio professional boxing earnings analysis (2009–2017); BoxRec global active boxer registry; Front Office Sports Top 50 UFC fighters; FightMatrix UFC pay structure.

Olympic sports — when world-class does not equal well-paid.

Professional swimming. World Aquatics paid a record $7.1M to 319 swimmers in 2024 and $10.13M across all aquatic sports in 2025 — historic numbers for the sport. But it's wildly concentrated.

$343K
Kate Douglass, top swimmer 2024
59%
Of US Olympic swim hopefuls under $25K/yr
$10K
Diamond League meeting winner, standard event 2025

The economic reality remains difficult: 59% of U.S. Olympic swimming hopefuls earn under $25,000 in their Olympic-prep year, while their training expenses run $25K–$40K. Only the very top of the sport (Katie Ledecky at $7M) clear meaningful sponsorship dollars.

Track & field (Diamond League). The 2025 Wanda Diamond League distributes a record $9.24M in total prize money across 14 series meetings plus a two-day Final — the largest pot in the series' history. But the per-event payout reveals the concentration: in a standard Diamond Discipline, a meeting winner earns just $10,000, with second at $6,000 and third at $3,500, and the curve collapses from there. Only a handful of Diamond+ disciplines per meeting pay the winner $20,000. The season-ending Final pays its winners $30,000 ($50,000 in Diamond+ events). Tellingly, the 2025 structure's headline reform was adding prize money for athletes finishing 9th–12th — payouts of just $500 to $1,000 — an admission of how little reaches anyone outside the podium.

The circuit itself is not where the money is. In 2024, the sport's highest earners — Jakob Ingebrigtsen at roughly $174K and Rai Benjamin at about $158K — built those totals almost entirely from Olympic and World Championship bonuses, federation payments, and shoe contracts, not Diamond League prize money. Benjamin's reward for actually winning a Diamond League meeting in Monaco was $10,000. Top sprinters and middle-distance stars can layer six- and seven-figure shoe deals on top (a peak Andre De Grasse reportedly earned around $2.25M/yr from Puma), but those endorsements are typically concentrated among Olympic finalists, medalists, and globally marketable stars. For the rest of the professional field, prize money is scant: surveys of elite track athletes have long found that roughly half of even top-10-ranked U.S. competitors earn under $15,000 a year from the sport, and most hold outside jobs to keep competing.

Sources
World Aquatics official 2024–25 prize-money disclosures; SwimSwam baseline-salary analysis; Wanda Diamond League 2025 prize structure (World Athletics); CITIUS Mag and FloTrack 2025 DL prize-money breakdowns; 2024 track-season earnings analyses.

Cycling & alpine sports — endurance and snow.

Professional road cycling (UCI WorldTour). Tadej Pogačar earns roughly €8.3M/year from UAE Team Emirates — yet that's still not enough to crack the global top 100 highest-paid athletes. The 2026 UCI WorldTour reports an average salary of €538,000 (skewed heavily by superstars). The top 5 men's cyclists each earn €3M+; after that, contracts drop sharply, with established domestiques earning €450K–€700K and the WorldTour minimum sitting at roughly €38,000 for employed riders.

Women's cycling is dramatically worse. A Cyclists' Alliance survey found over 70% of female pro cyclists earn under €10,000 per year, and 1 in 4 women's pro cyclists earns nothing at all. UCI Women's WorldTour minimum sits at €32,100; Continental teams have no minimum-wage requirement. Even Marianne Vos — multi-time world champion — earns just over $100K from her contract.

Alpine skiing (FIS World Cup). Marco Odermatt (€741,254) and Mikaela Shiffrin (€615,167) topped the 2025–26 prize-money list. Only 16 men cleared CHF 100,000 in 2024–25; the rest of the World Cup field earned far less. FIS pays only the top 30 finishers per race — every athlete from rank 31 onward gets €0 for that event. Cross-country skiing is even tighter: in 2019 only the top 2 men earned over 100,000 CHF; the 30th-ranked male was the first under 10,000 CHF. Outside alpine, the picture darkens further: top ski-cross, snowboard, halfpipe, and freestyle racers typically earn under CHF 100,000 in prize money for an entire winter.

Endurance & racquet sports — marathons, triathlon, badminton, table tennis.

Marathon / endurance running. World Marathon Majors offer some of the largest single-event prize purses in individual sport — Boston, NYC, and Chicago each pay $100,000–$150,000 to winners — but meaningful prize money tends to concentrate among top finishers. Eliud Kipchoge has likely cleared $2M+ in WMM prize money over his career; roughly a dozen runners across men, women, and wheelchair divisions earn six figures from the six majors annually. Sebastian Sawe banked roughly $355,000 from winning the 2026 London Marathon (with sub-2:02 + world-record bonuses). Below the top 10, marathon prize money drops to nothing — most professional marathoners earn the bulk of their living from shoe-company contracts and appearance fees, both reserved for athletes the top race directors invite.

Professional triathlon (T100 / Ironman Pro Series). Triathlon's economics improved dramatically with the launch of the T100 Tour and Ironman Pro Series, but concentration remains stark. As of 2025, just 14 athletes have ever earned over $1M in career triathlon prize money. Of 823 athletes who earned anything in 2025, only 42 cleared $100,000. Hayden Wilde and Kate Waugh each made $300K+; the top 8 earners shared the bulk of the $17M total prize pool.

Badminton (BWF World Tour). Players ranked 51–100 average just $2,053 in annual prize money. Ranked 33–50 averages $8,159; ranked 11–32 averages $25,275 (singles). The top earner Viktor Axelsen earned $645,095 in 2023. Most badminton pros must take part-time jobs (coaching, stringing) to support their careers.

Table tennis (WTT). The Top 10 men's WTT players combined earned $1.52M in 2024. World #1 Wang Chuqin earned $261,000 in WTT prize money; the 35th-ranked man on the earnings list (Oh Jungsung) cleared just under $50,000. Only 13 men and 11 women cracked $100,000 in prize money. Most table-tennis pros rely on European or Asian league contracts to pay the bills.

Golf — the cliff between elite and developmental tours.

Golf tells a slightly different story. Within the elite tours alone — PGA Tour and LPGA — the income curve is shallower than in most individual sports surveyed: salary-cap-style mechanisms (Earnings Assurance Programs, no-cut Signature Events) and large no-cut tournament fields keep more players paid each week. But once you zoom out one tier to the Korn Ferry Tour and Epson Tour, the gap becomes one of the steepest in any individual sport.

Men's golf — PGA Tour 2025. The PGA Tour distributed roughly $498M in prize money across 237 official money-list players in 2025, with an average earning of about $2.1M. Scottie Scheffler led the list at $26.58M — roughly 5% of the entire pool and his fourth consecutive year atop the money list — and the Top 25 earners together captured an estimated 43% of all on-tour prize money. The Top 100 share is estimated at roughly 90%, consistent with most other sports in this brief. The PGA Tour's $500,000 Earnings Assurance Program protects fully exempt players who finish below the average, lifting the floor in a way most individual sports lack.

Women's golf — LPGA Tour 2025. The LPGA distributed a record $131.6M across 182 players in its 75th-anniversary season — roughly one-quarter of the PGA Tour's total. Jeeno Thitikul led with $7.58M (about 6% of the pool); 43 players cleared $1M for the year, an LPGA record. The average LPGA earning was $701,098, but the median was just $286,000 — a wide mean-vs-median gap that signals heavy top-end concentration even in a tour with strong overall growth.

The cliff: developmental tours. Below the elite tours sits a structurally different income stratum. The Korn Ferry Tour — the official PGA Tour development circuit — paid an average of $112,560 per player in 2025; the leader, Johnny Keefer, earned $804,349, a figure that would rank 141st on the PGA Tour. There is no Earnings Assurance Program at the Korn Ferry level.

The Epson Tour (the LPGA's developmental circuit) is even starker. Total 2025 prize money across the entire 20-event season was $5 million — 1/26th of the LPGA pool. The leading earner (Melanie Green) won a tour-record $186,986; the player ranked 54th on the money list earned $31,380, while typical Epson Tour annual expenses run $50,000–$80,000. Many Epson Tour players likely operate at a loss after expenses. The top earner on the entire Epson Tour ($187K) would rank around 150th on the LPGA Tour.

Sources
PGA Tour Official Money List 2025; LPGA Money List 2025; Golf Monthly tour earnings analyses (Nov–Dec 2025); Korn Ferry Tour CBA / payout structure; Epson Tour 2025 season summary; Yahoo Sports Epson Tour expense disclosures.

Team sports — CBAs lift the floor, but only inside the elite league.

Team sports protect their elite-tier players with collective bargaining agreements, salary caps, salary minimums, and revenue-sharing structures that don't exist in individual sports. Inside the NBA, the Premier League, or MLS, income concentration is meaningfully lower than in tennis or boxing. But stepping down — to the G League, English League Two, or the MLS reserve roster — and the same income cliff that abandons the mid-tier of individual sport reappears in team sport.

The cliff between top league and the tier below

Annualized comparison of top-league benchmark vs. lower-tier benchmark, by sport.

Top tier (annual)Tier below (annual)Multiple
Basketball (NBA → G League)$1.27M minimum$45,000 standard~28x
Soccer (Premier League → Champ.)£3.48M avg£572,000 avg~6x
Soccer (Premier League → League 2)£3.48M avg£104,000 avg~33x

MLS is not shown in this table. Unlike basketball and English soccer, it has no comparable lower division, and its pay concentration is driven by the Designated Player rule rather than a cross-tier cliff. MLS is discussed separately below.

NBA 2025–26 — among the flattest compensation structures surveyed

The NBA's salary cap ($154.6M per team), team salary floor ($139.2M), and rookie minimum ($1.27M) combine to produce the flattest income curve of any league surveyed. Stephen Curry led at $59.6M; the Top 25 highest-paid players captured an estimated 22% of the league's roughly $5.7B total payroll, and the Top 100 captured around 41%. The Curry-to-NBA-minimum ratio is just 47x — by individual-sport standards, that's an unusually compressed gap. Two-way contracts pay $636,000, half the rookie minimum, but still place players firmly in the U.S. top earnings decile.

The G League cliff

One step below the NBA roster, the income picture inverts. The 2025–26 G League standard salary is $45,000 for a five-to-six-month season — a 28x drop from the NBA rookie minimum on a per-year basis. The entire G League's player payroll across 31 teams runs to roughly $17 million — meaning Curry's individual NBA salary is more than 3.5x the entire G League's combined player wages. Players assigned from NBA rosters on two-way contracts can earn $636K, but the bulk of the G League roster — roughly 370 players with elite individual talent — earn entry-level wages while training full-time.

Premier League — the world's richest soccer league

The Premier League is the highest-paying soccer league in the world, with roughly £2.3B in total wages spread across approximately 500 players (estimated). Erling Haaland led the 2025–26 wage table at £525,000/week (£27.3M/year). The average PL salary is £67,000/week (£3.48M/year); the average top-six club salary is £110,000/week. Within the league alone, the Top 25 earners capture an estimated 15% of the wage bill and the Top 100 capture roughly 36% — making the Premier League the least concentrated top tier in this entire brief. Haaland-to-PL-average is only 7.8x, well below the 12.6x ratio between Scottie Scheffler and the average PGA Tour player.

The English football pyramid — where the cliff appears

Drop one division to the Championship and average wages fall to £11,000/week — roughly 6x less than the Premier League. League One averages £7,045/week; League Two averages £2,000/week. Haaland's annual wage is 262x the average League Two salary. A single week of Haaland's pay (£525,000) equals five years of average League Two earnings.

MLS — the bimodal middle ground

Major League Soccer occupies a unique position: its Designated Player rule lets a small number of stars earn outside the salary cap while the rest of the roster operates under strict cap controls. Lionel Messi's $20.4M in guaranteed compensation in 2025 was greater than the combined guaranteed pay of more than 20 of the league's other teams. Outside that handful of cap-exempt stars, MLS is comparatively flat: the league's median guaranteed compensation was roughly $340,000 in 2025, against a reserve minimum near $81,000. MLS's concentration is therefore an artifact of the Designated Player carve-out — not a steep cliff running through the body of the league.

The takeaway: team sports do not escape the top-heavy economy — they relocate it. Inside the elite league, CBAs and minimums genuinely soften concentration. But the cliff between the top league and the tier below it is steeper than the equivalent gap in many individual sports. The mid-tier abandonment problem appears consistently across the sports surveyed; in team sports, it is hidden one league down.

Sources
NBA salary data 2025-26 (Spotrac, Basketball-Reference, ESPN); NBA G League CBA 2025; Capology Premier League / Championship / League One / League Two payrolls 2025-26; SalaryLeaks Premier League / Championship; MansionBet pyramid wage analysis; MLS Players Association 2025 Salary Guide; Sportico / Capology MLS analysis; ESPN MLS salary report (October 2025).

Three structural truths.

Across the 13 individual sports and two team sports surveyed, the same three structural patterns emerge from the data.

The top captures most of the available money.

In individual sports, model estimates suggest the Top 25 take 40–85% of all prize money; the Top 100 take 75–95%. In team sports, the Top 25 take 15–22% of league wages — a meaningfully flatter curve that reflects salary-cap and CBA mechanics. But in both contexts, a small minority of athletes earns the majority of the money.

The middle struggles to live on competition income alone — sometimes inside the sport, sometimes one tier down.

In individual sports, players ranked roughly 50–500 are still elite global competitors, but earn roughly $10,000–$100,000 in annual competition income before expenses, depending on the sport. In team sports, the elite-league floor is genuinely high (NBA rookie minimum $1.27M; PL average £3.48M), but the tier below it collapses sharply: G League $45,000; English League Two ~£104K; Epson Tour median ~$30K against $50K–$80K in expenses.

Audience and engagement are real across all tiers.

Across the sports examined, the audience for most independent professional and team-sport athletes is large and engaged — but it has historically had no scalable mechanism to translate that engagement into income for the athletes themselves.

Conclusion.

The data is consistent across every individual professional sport surveyed and across both team sports examined: prize money and contract income concentrate sharply at the very top, and the curve falls off steeply once a player exits the elite tier. World-class performance does not, on its own, translate into a sustainable income for the vast majority of athletes who reach the professional ranks. Conservatively, tens of thousands of independent professional athletes globally — and tens of thousands more lower-division team-sport players — currently compete outside the income brackets where the sport's economics fully support them.

How this was put together

Compiled in June 2026 using publicly reported compensation data, disclosed prize-money distributions, salary disclosures, league payroll figures, and modeled estimates (primarily 2022–2025 seasons). Designed to compare earnings concentration within sports rather than produce precise like-for-like comparisons between fundamentally different compensation systems. Figures combine prize money with disclosed contract or league pay where available; sports without league pay reflect prize money only. Because the underlying economic models differ — prize-money tours, salaried leagues, and endorsement-driven incomes are not strictly comparable — cross-sport numbers should be read as the shape of concentration within each sport, not a like-for-like ranking across them. Figures count competitive earnings and exclude endorsements except where explicitly noted. Concentration percentages are directional estimates derived from disclosed prize-money distributions, official money lists, salary-cap data, and reported top-earner totals relative to known compensation pools. NBA, Premier League, and MLS payroll totals draw on Capology, Spotrac, and MLSPA disclosures; some values combine base salary with signing-bonus annualizations and may differ slightly from cap-hit figures used elsewhere. Endorsement and sponsorship figures (e.g., Sindhu, Korda, Waters) are third-party estimates rather than audited disclosures.