John Robert Isner (born April 26, 1985) is an American professional tennis player. He learned tennis when he was nine years old and started his tennis career in college, but switched to the professional circuit in the summer of 2007. He won sixteen singles titles on the ATP tour. In addition to his two wins at the Auckland ATP tournament, he has won all of his tournaments on American soil, culminating in his 2018 Miami ATP final win, his first master series title. Since 2010, with the exception of 2012, he has reached the final of the Atlanta ATP tournament every year, which he won five times, a tournament record.
On June 22, 2010, Isner started the longest match in tennis history at Wimbledon at Wimbledon, the match lasted over 11 hours and ended on June 24. Isner eventually won the match 6-4, 3-6, 6-7(7), 7-6(3) and 70-68. During that match, Isner broke the record for most aces in one match: he made 113. Mahut was close to Isner with 103 aces.
On July 13, 2018, he played another monster game at Wimbledon. The semi-final lasted 6 hours and 37 minutes. His opponent Kevin Anderson won that match, 26–24 in the fifth set.
While studying at the University of Georgia, Isner was very successful in college tennis, so he decided to become a professional tennis player in the summer of 2007. He won the first future immediately, the next challenger and an ATP tournament, however, he already lost in the first round. However, in July 2007 he won a challenger, moving him from 839th position on the ATP Rankings to 416th position within one month.
Because Fernando González withdrew at the last minute from the ATP tournament in Washington, Isner received a wild card for the tournament. During that tournament he beat Tim Henman, Gaël Monfils and Tommy Haas, among others, only to be stopped in the final 6-4, 7-6 by his compatriot Andy Roddick.
His success earned him entry into the Cincinnati ATP Tournament, New Haven ATP Tournament and the US Open. In Cincinnati he lost in the first round to David Ferrer, only to lose again in the second round to the Spaniard in New Haven. At the US Open, Isner managed to make it to the 3rd round, where Roger Federer outmaneuvered him, but Isner was one of the two players who managed to steal a set from the Swiss during the US Open.
After this, Isner only played challengers, because he performed well in these tournaments, he reached 107th position in the ranking at the end of the season. Also, Isner became a practice partner for the US Davis Cup team.
His 107th place in the rankings gave Isner direct entry into the Australian Open, but lost 6–2, 6–2, 6–4 to Fabrice Santoro in the first round. The doubles tournament also did not go well for him and his partner Ivo Karlović, where they were already eliminated in the first round. Victories at the ATP tournament in San José put Isner in the top 100, namely in 93rd position. In the summer, however, he would fall outside the top 100 again due to disappointing results.
At Wimbledon, Isner faced Frenchman Nicolas Mahut in the first round, which started on June 22 and was the longest game in tennis history at 11 hours and 5 minutes. Late in the evening of June 23, due to darkness falling, the game was interrupted at a score of 6–4, 3–6, 6-7(7), 7-6(3) and 59-59. Play continued on June 24 and Isner eventually won the match 70-68 in the fifth set. In addition to breaking the record for longest match, both players also broke the record for most aces in one match. This record was held by Ivo Karlović (77 aces) and the record now stands at 112 aces for Isne