About
John Isner is an American former professional tennis player, known for his powerful serve. He achieved a career-high ranking of world No. 8 in singles and No. 14 in doubles. Isner holds the record for the most aces in ATP history. He retired from professional tennis following the 2023 US Open.
Career Timeline
Professional Debut
John Isner begins his professional tennis career.
Wimbledon Marathon Match
Plays the longest tennis match in history at Wimbledon, gaining global attention and boosting his profile.
Miami Open Victory
Wins his first Masters 1000 title at the Miami Open, increasing his earnings and endorsement opportunities.
Wimbledon Semifinal
Reaches the semifinals at Wimbledon, further solidifying his status as a top player.
Retires from Tennis
Retires from professional tennis with considerable wealth accumulated.
Post-Tennis Life
Enjoys retirement, possibly with commentary or business ventures, maintaining net worth.
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Last updated: February 23, 2026