Every league counts it differently. We counted all of them the same way — and hockey careers run 33% longer than football careers.
Read the full story ↓Every league publishes a career-length figure, and every one of them uses a different definition — so the numbers you can look up are not comparable with each other. These are. Every sport below is measured the same way from the same archive: 2,772,373 player-seasons, completed careers only, one year counted once.
| League | Average career | One season only | Ten seasons or more |
|---|---|---|---|
| NHL | 5.86 seasons | 22.5% | 23.4% |
| MLB | 5.01 seasons | 28.7% | 17.7% |
| NBA | 4.5 seasons | 30.1% | 14.7% |
| NFL | 4.42 seasons | 28.3% | 11.4% |
| AFL | 4.23 seasons | 29.5% | 11.7% |
Roughly 28% of completed NFL careers are a single season, and basketball is the same. What lifts the mean is the tail: 23.4% of NHL careers reach ten seasons against 11.4% in the NFL. A number like “four years” describes almost nobody — it sits between a very large group who get one year and a small group who get a decade.
Within one league the spread is nearly as wide as the spread between leagues. Same archive, same completed-career rule, careers beginning 1970 or later — two-platoon football is where a position becomes an honest label:
| Position | Average career | One season only | Ten seasons or more |
|---|---|---|---|
| Kickers, punters & snappers | 6.05 seasons | 27% | 25.7% |
| Quarterbacks | 5.41 seasons | 25% | 19.9% |
| Offensive linemen | 5.33 seasons | 22.1% | 16.8% |
| Defensive linemen | 4.89 seasons | 24.5% | 15% |
| Linebackers | 4.61 seasons | 24.2% | 11.4% |
| Tight ends | 4.6 seasons | 23.4% | 10.7% |
| Defensive backs | 4.59 seasons | 23.4% | 10.5% |
| Running backs | 4.07 seasons | 25.6% | 6.5% |
| Wide receivers | 4.06 seasons | 29% | 8.6% |
The ordering is the league’s own famous finding, reproduced from the raw record: the specialists last longest, quarterbacks next, and the ball-carriers and catchers go home first — running backs and receivers sit at the bottom effectively tied, and only 6.5% of backs reach a tenth season against 25.7% of the kickers. The absolute figures run higher than the ones usually quoted because this counts completed careers under one definition rather than roster-experience snapshots. Players recorded only as returners are left out rather than guessed at.
Same rule again, this time across the 1994–2009draft classes — the seven-round era, with every class given at least a decade to finish. Drafted players only: a missing draft record cannot be told apart from a hole in the sources, so no undrafted row is invented.
| Draft round | Average career | One season only | Ten seasons or more |
|---|---|---|---|
| Round 1 | 8.8 seasons | 0% | 42.6% |
| Round 2 | 7.42 seasons | 1.6% | 27.7% |
| Round 3 | 6.3 seasons | 1.9% | 19.1% |
| Round 4 | 5.81 seasons | 5.4% | 16.6% |
| Round 5 | 5.11 seasons | 11.8% | 10.9% |
| Round 6 | 4.75 seasons | 13.1% | 9.2% |
| Round 7 | 4.45 seasons | 17.1% | 8.8% |
Every column runs the same direction through all seven rounds, which is the table’s own proof: a first-round career averages 8.8 seasons and a seventh-round career 4.45 — half as long — and while 17% of seventh-rounders were done after one season, not a single first-rounder in sixteen draft classes was. The pick buys patience: teams give their earliest choices the years the late ones never get.
Put career length and start age together and the exit writes itself: the average completed NFL career ends in the player’s age-27 season, measured over 11,130 careers beginning 1980 or later. Retirement is usually the wrong word for it — 37.9% of players are done by 25, while only 4.5% are still on a field at 35. The farewell tour is the exception the highlight reels remember; the unannounced final season is the career most players actually get. Which positions beat those odds — and the year-by-year survival curve — is its own page: the average NFL retirement age, position by position.
Only completed careers count, meaning a last season on or before 2019. Each league is measured inside one longitudinal record (basketball uses two that cover different eras), so the same career is never assembled from overlapping sources or counted once per source. Video-game roster and card entries are excluded — 404,403 of the archive’s player-seasons come from those, and none of them is a season anybody played. Basketball lands at 4.5 against the 4.5 its players’ association publishes, which is the check that makes the rest worth reading.
Golf, cricket and women’s soccer are missing because their averages shift by more than a third of a season depending on where a career is judged to have ended; a number that moves with the method is a choice, not a fact. Men’s club soccer was published here once and removed for the same reason on a different axis: our two soccer records disagree by close to a full season, so no single figure survives the source choice. College sport is missing because eligibility caps it. Every table on this page is downloadable as one CSV, generated from the same source the page renders. The same archive answers how big the average NFL player is and how tall the NBA really runs. Read how the ratings work, or play a basketball career and see where yours lands.
Corrected 2026-08-27: the first version of this page pooled every source per league, and for football our sources do not share player identities — the same man counted once per record, which both multiplied careers and shortened them. Each league is now measured inside one longitudinal record; the football figure rose from just over four seasons to 4.42, its career count came into line with the public record, and soccer left the table. We would rather show the correction than hide it.
More from the record book: the average NFL retirement age, how big the average NFL player is, the NFL sack record, average NBA height, the tallest NBA players ever, the shortest NBA players ever, average WNBA height, how many players are in the NFL, how many players are in the NBA, the average MLB player, the perfect MLB season and every perfect season.
It depends on the sport far more than most people expect. Measured the same way across our own record, a completed NHL career averages 5.86 seasons and a completed NFL career 4.42 — about 33% longer in hockey. Basketball sits at 4.5 and Australian rules at 4.23.
Mostly they do not. Basketball works out at 4.5 seasons here against the 4.5 the players' association publishes, which is the agreement that gives the rest of the table its credibility. What is different is that every sport on this page is measured by one definition, where each league body uses its own — so their figures cannot be compared with each other and these can.
A year in which a player appears in the record, counted once. Each league is measured inside one longitudinal record — or, for basketball, two that cover different eras — because our sources do not share player identities across every league, and counting one man once per source both multiplies and shortens careers. Only completed careers are included — a last season on or before 2019, so nobody still playing drags the average down. Video-game roster and card entries are excluded: 404,403 of the 2,772,373 player-seasons in the archive come from those and are not seasons anyone played.
No, and it is the part most worth ignoring. Around 28% of completed NFL careers are a single season, and basketball runs slightly higher still. The mean is pulled upward by a small group who last a decade or more — 23.4% in the NHL against 11.4% in the NFL.
The average NFL career length depends on the position more than anything else: kickers, punters and snappers last longest at 6.05 seasons, quarterbacks next at 5.41; running backs and wide receivers share the bottom at 4.07 and 4.06. Only 6.5% of running backs ever reach a tenth season, against 25.7% of the specialists. Measured over completed careers beginning 1970 or later, so every position is judged by the same rule.
Twice as long. Across the 1994–2009 draft classes, a completed first-round career averages 8.8 seasons against 4.45 for a seventh-rounder, and the gradient is perfectly ordered through every round in between. The sharpest fact is at the top: not one of the 472 first-round picks in those classes lasted only a single season, while 17% of seventh-rounders did.
The last season comes at 27.4 on average, and the median is 27 — measured over 11,130 completed careers. Retire is usually the wrong word: 37.9% are done by 25, and only 4.5% are still playing at 35. The long farewell is the rare career; the quiet early exit is the normal one.
Because a figure we cannot defend is worse than no figure. Golf, cricket and women’s soccer move by more than a third of a season depending on where the cutoff for a finished career is drawn, so no single number is honest for them. Men’s club soccer was in this table once and was removed: our two soccer records disagree with each other by close to a full season on what the average career is, and a number that changes with the source is a choice, not a fact. College sport is left out because eligibility caps a career at four or five years, and mixed martial arts because our source lists each fighter once rather than season by season.
Yes — the career simulator deals you one player’s whole life in the league, from the draft to the retirement call, judged against the same record book these numbers come from. It is the difference between reading the distribution and finding out where you land in it.
