Ivo Karlović is a Croatian former professional tennis player. His height of 211 cm makes him the joint tallest ranked tennis player in history, along with Reilly Opelka. He won eight ATP Tour singles titles between 2007 and 2016. He is a serve-and-volleyer and officially held the record for the fastest serve recorded in professional tennis, measured at 251 km/h (156 mph), before being surpassed unofficially by Samuel Groth in 2012, and officially by John Isner in 2016. In his prime, he was considered one of the best servers on tour, and held the record for career aces from 1991 onwards with 13,728 before the record was broken by Isner on July 1 2022. This makes him one of only five players since 1991 to surpass 10,000 aces. His height enabled him to serve with high speed and unique trajectory.
Justin Jeremy Gimelstob is a retired American tennis player. Gimelstob has been a resident of Morristown, New Jersey, and as of 2009 lived in Santa Monica, California.
Paul Herbert Goldstein is a retired tennis player from the United States, who turned professional in 1998. He announced his retirement from professional tennis in February 2008, as he was starting working with a clean energy company.
Robert Thomas "Bobby" Reynolds is an American retired professional tennis player who resides in Auburn, Alabama. He was named head men's tennis coach at Auburn University in June 2016.
Robert Bradley Kendrick is an American retired professional tennis player. He turned professional in 2000. His career-high singles ranking is World No. 69, achieved in July 2009.
Samuel Austin Querrey is an American professional pickleball player and former tennis player. He reached a career-high singles ranking of world No. 11 achieved on February 26, 2018, and won ten ATP singles titles. Known for his powerful serve, Querrey holds the record for consecutive service aces in a match with 10. He was also a capable doubles player, with five ATP doubles titles and a career-high doubles ranking of No. 23 achieved on May 17, 2010. His best performance in a Grand Slam singles event was at the 2017 Wimbledon Championships, where he reached the semifinals after defeating world No. 1 Andy Murray in the quarterfinals to become the first American man to reach the last four of a Grand Slam in eight years. At the same tournament the previous year, he defeated world No. 1 Novak Djokovic to reach the quarterfinals, ending his Grand Slam win streak of 4 in a row. Other career highlights for Querrey include defeating former world number one Rafael Nadal in the Acapulco final of 2017, reaching the quarterfinals at the 2017 US Open and the 2019 Wimbledon Championships, and, in the 2015 US Open, reaching the mixed doubles final with Bethanie Mattek-Sands and the men's doubles semifinals with Steve Johnson. He also reached the semifinals of the Davis Cup three times with the United States team, in 2008, 2012, and 2018.
Rajeev Ram is an American professional tennis player who is a former World no. 1 in doubles. Ram is a six-time Grand Slam champion, having won the 2020 Australian Open, the 2021 US Open, the 2022 US Open, and the 2023 US Open in men's doubles with Joe Salisbury, as well as Australian Open mixed doubles titles in 2019 and 2021 alongside Barbora Krejčíková. Ram also won two silver medals, in mixed doubles with Venus Williams at the 2016 Olympics, and in doubles with Austin Krajicek at the 2024 Olympics.
Barry MacKay was an American tennis player, tournament director and broadcaster. He was ranked #1 in the U.S. in 1960.
John Robert Isner is an American former professional tennis player. He was ranked as high as world No. 8 in singles and No. 14 in doubles by the Association of Tennis Professionals (ATP). Considered one of the best servers ever to play on the ATP Tour, Isner achieved his career-high singles ranking in July 2018 by virtue of his first Masters 1000 crown at the 2018 Miami Open and a semifinal appearance at the 2018 Wimbledon Championships. He also twice reached the quarterfinals at the US Open in 2011 and 2018, the latter of which helped qualify him for an ATP Finals appearance later that year. At the 2010 Wimbledon Championships, he played the longest professional tennis match in history, requiring five sets and 183 games to defeat Nicolas Mahut in a match which lasted 11 hours and 5 minutes, and was played over the course of three days. Isner holds the record for hitting the ATP's fastest official serve ever and third-fastest on record in tennis at 157.2 mph or 253 km/h during his first-round 2016 Davis Cup match. He has the most aces in the history of the ATP Tour, having served 14,470, as of August 31, 2023. Isner retired from professional tennis following the 2023 US Open.
Wayne Odesnik is a South African-born American retired professional left-handed tennis player, with a two-handed backhand. His highest singles ranking was No. 77 in 2009.
Scott Lipsky is an American former professional tennis player and coach. As a player, Lipsky was primarily a doubles specialist.
Michael Sell is a former professional tennis player from the United States. He was the co-head coach of the women's tennis team at Louisiana State University with Julia Sell from 2015 to April 2022.
Noah Rubin is an American professional tennis player. He is a former Wimbledon junior singles champion, and a former USTA junior national champion in both singles and doubles. After turning pro in 2015, he won four ATP Challenger titles.
Ruben Gonzales is an American-born Filipino professional tennis player playing on the ATP Challenger Tour. On May 6, 2013, he reached his highest ATP singles ranking of 766 and his highest doubles ranking of 122 achieved on August 29, 2022.
Jared Donaldson is an American former professional tennis player from Glocester, Rhode Island. Donaldson was the only American to qualify for the inaugural Next Generation ATP Finals at the end of 2017 as the fifth seed. He has won a Challenger title in singles as well as doubles, with both of them having come at the Royal Lahaina Challenger in 2015.
Craig Tiley is a South African tennis executive and retired U.S. college tennis coach. Tiley is the current CEO of Tennis Australia, which is the governing body that oversees tennis in Australia. He is also the Director of the Australian Open. As a college coach he led the Illinois Fighting Illini men's tennis team to National Collegiate Athletic Association (NCAA) Division I national championship in 2003 and ITA National Team Indoor Championships in 2003 and 2004.
Abigail Forbes is an American tennis player.
Martin Damm Jr. is an American professional tennis player. Damm has a career-high ATP singles ranking of No. 175 achieved on April 1, 2024 and a doubles ranking of No. 303 achieved on November 6, 2023.
Benjamin Todd Shelton is an American professional tennis player. Shelton has a career-high singles ranking of world No. 13 by the Association of Tennis Professionals (ATP), achieved on August 19, 2024. He has a career-high ATP doubles ranking of No. 68 achieved on May 20, 2024.
Ethan Quinn is an American tennis player. He has a career-high ATP singles ranking of world No. 202 achieved on 16 December 2024 and a doubles ranking of No. 332 achieved on 17 June 2024.
United States