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#17 in Athletes of All Time
of 20 ranked entries
Tennis · Czechoslovakia/United States · 1973–2006
Eighteen Grand Slam singles titles behind a serve-and-volley game so far ahead of its era that her 1983 season — 86 wins against a single loss — is still the benchmark for single-season dominance. Recorded specifics: sport Tennis, active from 1973, major titles 18. Panel highlighted 86-1 season record in 1983, tennis’s benchmark for dominance, 59 total Grand Slam titles across singles, doubles and mixed and defected from Czechoslovakia at 18 and rebuilt a career from nothing. The reservation on record is career overlaps a thinner era of depth before the Williams generation.
Score breakdown
Each criterion is scored independently, then combined using the weights published on Athletes of All Time.
On the record
| Sport | Tennis |
|---|---|
| Active from | 1973 |
| Major titles | 18 |
| GOAT score | 8.8 |
Panel verdict
What it gets right
Where it gives ground
1 appearance
From the same list
Basketball · Chicago Bulls · 1984–2003
Six trips to the Finals, six championships, six Finals MVPs — a title-conversion rate nothing else in team sports has matched. The competitive ferocity is as much the legend as the fadeaway.
Boxing · Heavyweight · 1960–1981
Beat Liston, Frazier and Foreman in fights that still define their eras, and did it after a three-year exile for refusing the Vietnam draft cost him what should have been his physical prime. The politics are inseparable from the ranking.
Soccer · Brazil · 1956–1977
The only man to win three World Cups, the last of them as a 29-year-old anchoring Brazil’s 1970 side, arguably the finest team ever assembled. Statistics from the amateur-adjacent fixtures of his early career are disputed; the World Cup record is not.
Track & Field · Jamaica · 2002–2017
Ran 9.58 seconds for 100 metres in Berlin in 2009, a mark nobody has come within a tenth of since. Won gold in the 100m and 200m at three consecutive Olympics, a sprint double no one had repeated even once before him.
Tennis · United States · 1995–2022
Twenty-three Grand Slam singles titles, the Open-Era record, won across three different decades against opponents who built entire careers around beating her serve. Went from teenage upstart to a 35-year-old winning the Australian Open roughly eight weeks pregnant.
Swimming · United States · 2000–2016
Twenty-eight Olympic medals, twenty-three of them gold — both records by margins that make the runner-up look distant. Eight golds at a single Games in Beijing 2008 is unlikely ever to be threatened.
Ice Hockey · Oilers, Kings · 1979–1999
“The Great One” retired with more career assists alone than any other player has ever recorded in total points — goals, assists and points combined. Alex Ovechkin finally caught his career goals record in 2025; the points total remains untouchable.
Baseball · Red Sox, Yankees · 1914–1935
Retired with 714 home runs, a total so far beyond his contemporaries that Ruth personally outhomered entire opposing teams in some seasons. Started as a dominant left-handed pitcher before Boston converted him into the sport’s first true power hitter.
Top 49 rankings are editorial. Scores are produced from the published criteria on each list and are refreshed on the cadence stated there. Figures shown across this section are curated demonstration data.