|Residence||Overland Park, Kansas and Lincoln, Nebraska |
September 24, 1992 |
|Height||1.85 m (6 ft 1 in)|
|Weight||82 kg (180 lb)|
|Plays||Right-handed (two-handed backhand)|
|Highest ranking||No. 121 (April 1, 2013)|
|Current ranking||No. 121 (April 1, 2013)|
|Grand Slam Singles results|
|US Open||3R (2012)|
|Highest ranking||No. 97 (March 18, 2013)|
|Current ranking||No. 100 (April 1, 2013)|
|Grand Slam Doubles results|
|US Open||2R (2012)|
|Grand Slam Mixed Doubles results|
|US Open||W (2011)|
Last updated on: April 30, 2012.
Junior career 
Sock played his first ITF junior tournament in October 2008, aged 16, at the Pan American Championships. In the 2009 US Open, his third junior tournament, he reached the semifinals of the junior doubles with Matthew Kandath, and the third round of the junior singles.
Sock played relatively infrequently on the junior circuit, however, entering just two further tournaments: the Dunlop Orange Bowl in 2009 and the junior singles at the 2010 U.S. Open. At this tournament, he received a wildcard entry, but proceeded to the final. There, he defeated fellow American Denis Kudla, 3–6, 6–2, 6–2, to become the first American winner of the junior championships since Andy Roddick in 2000. He won the Boy's Junior National Tennis Championship in 2010  and 2011, earning a wildcard in both years for the main draw of the US Open.
Professional career 
Early career 
Sock began playing in Futures tournaments in 2009, winning his first senior tournament on that circuit in November 2011. He entered his first qualifying draw for an ATP tournament at the 2010 Miami Masters. His first match as a professional came at the 2010 US Open, where he lost to Marco Chiudinelli. Sock finished the 2010 season ranked 878th in the world.
In 2011, he achieved his best result to date in a Futures tournament, reaching the final of the USA F3 tournament. He began to play in a few tournaments at Challenger level, with his biggest success being a quarterfinal at the Dallas Challenger. He also competed in the main draw of the 2011 Miami Masters. As 2010 US Junior champion, he received a wildcard into the 2011 US Open, winning his first ATP match against Marc Gicquel 6–4, 6–3, 1–6, 6–4. He advanced to play his idol Andy Roddick, a fellow Nebraskan in the second round. He lost to Roddick 3–6, 3–6, 4–6. Sock's real breakthrough came in the mixed doubles, however, where he advanced to the final alongside Melanie Oudin, defeating the defending champions Bob Bryan and Liezel Huber in the second round. In the final, Sock and Oudin defeated Gisela Dulko and Eduardo Schwank 7–6, 4–6, [10–8].
After winning his first Grand Slam title, Sock returned to competing on the Challenger Tour. His most successful tournament was the Sacramento Challenger, in which he reached in the quarterfinals of the singles tournament and, partnering Nicholas Monroe, the final of the doubles tournament. Sock finished 2011 ranked no. 381 in the singles, and no. 370 in the doubles.
In 2012, Sock won the Futures tournament at Plantation, as well as losing in the doubles final. Stepping back up to the Challenger level, he competed at the Honolulu Challenger, making the quarterfinals of the singles tournament and, alongside Nick Monroe, once again made the final of the doubles tournament.
Jack played in the 2012 Campbell's Hall of Fame Tennis Championships, and lost in the second round to Izak van der Merwe. Sock's next tournament was the 2012 BB&T Atlanta Open. He upset the number 7 seed of the tournament, Alex Bogomolov, Jr.. He made it to the quarterfinals where he lost to John Isner. At the US Open, Sock defeated the number 22 seed, Florian Mayer, in the first round: 6–3, 6–2, 3–2 after Mayer retired. He then went on to defeat world number 85 Flavio Cipolla of Italy in straight sets, setting up his first ever Grand Slam third round match against 11th seed Nicolás Almagro. Almagro defeated him 7–6, 6–7, 7–6, 6–1 in 4 sets. In the final two months of the 2012 season Sock reached his first two Challenger Tour finals, winning at Tiburon in October and finishing as runner-up in the November Champaign-Urbana Challenger. These finals helped him rise to the top 150 for the first time.
Sock had a slow start to 2013, losing in the qualifying of the Brisbane International and the Australian Open. However, he received a wildcard entry into the U.S. National Indoor Tennis Championships, in which he gained his first wins of the season in reaching the quarter-final, the second of his career. In the doubles competition at the same tournament Sock teamed up with James Blake, also a wildcard entry, reaching the final where the pair lost to the Bryan Brothers.
Playing style 
Jack Sock is primarily an aggressive baseliner with some occasional serve and volley play. His forehand and serve are his biggest weapons, with his second serve being one of the most consistent out of the younger generation. He hits with a large amount of spin, as seen on his forehand and second serve, as they kick a great deal, especially on the second serve, allowing him to hit very heavy shots and control the point. He has excellent touch at net, being able to hit volley winners with ease.
Major finals 
Grand Slam 
Mixed doubles: 1 (1–0) 
|Winner||2011||US Open||Hard||Melanie Oudin|| Gisela Dulko
|7–6(7–4), 4–6, [10–8]|
ATP career finals 
Doubles: 2 (1-1) 
|Runner-up||1.||February 24, 2013||Memphis, United States||Hard (i)||James Blake|| Bob Bryan
|Winner||1.||March 3, 2013||Delray Beach, United States||Hard||James Blake|| Max Mirnyi
Singles performance timeline 
Won tournament, or reached Final, Semifinal, Quarterfinal, Round 4, 3, 2, 1; competed at a Round Robin stage or lost in Qualification Round 3, 2, Round 1; absent from a tournament or participated in a team event; played in a Davis Cup Zonal Group (with its number indication) or Play-off; won a bronze, silver (F or S) or gold medal at the Olympics, the former of which has, from 1908–1924 and 1996–present, been awarded to the winner of a play-off match between losing semifinalists. The last two are for a Masters Series/1000 tournament that was relegated (Not a Masters Series) or a tournament that was Not Held in a given year. To avoid confusion and double counting, these charts are updated either at the conclusion of (not during) a tournament, or when the player's participation in the tournament has ended.
|Grand Slam Tournaments|
- American Closed ITF Championships 2008 Results ITF. Accessed 2011-09-09
- Activity – Jack Sock ITF. Accessed 2011-09-09
- Sock, Gavrilova win US Open junior titles SIFY News. 2010-13-09. Accessed 2011-09-09
- Blue Valley North’s Jack Sock is All-Metro boys tennis player of the year Kansas City Star. 2011-29-06. Accessed 2011-09-09
- "Jack Sock 2009 Singles Activity". ATP. Retrieved 1 February 2012.
- 2010 SONY ERICSSON OPEN SINGLES AND DOUBLES DRAWS Sony Ericsson Open. Accessed 2011-09-09
- SOUTH AFRICAN AIRWAYS ATP RANKINGS HISTORY ATP. Accessed 2011-09-09
- The Decline of Weston Civilization Part I – The Final Weekend of the USA F3 Futures Challenger Tennis. 2011-03-02. Accessed 2011-09-09
- Roddick vs. Sock: Breaking It Down New York Times. 2011-09-03. Accessed 2011-09-09
- Melanie Oudin-Jack Sock reach final ESPN. 2011-08-09. Accessed 2011-09-09
- ATP – Coaching updates on Donald Young and Jack Sock TennisworldUSA. September 28, 2011. Accessed September 29, 2011
- "Blake impressed by Sock; Querrey in Challengers". Tennis.com. Retrieved 20 January 2012.
- "ITF Futures – Jack Sock wins second ITF title". Tennis World USA. Retrieved 1 February 2012.
- "Hit with Robby Ginepri – Honolulu Challenger Conclusion". 10S Balls. Retrieved 1 February 2012.
- "Almagro beats US teen Sock in US Open 3rd round". Retrieved Sep 1, 2012.
- "Sock falls in Champaign Challenger final". Lincoln Journal Star. Retrieved 26 November 2012.
- "Jack Sock re-emerges with Memphis run". Sports Illustrated. Retrieved 24 February 2013.
- Oddo, Chris. "Lopez's 300th Win Knocks Sock out of Memphis". Retrieved 24 February 2013.
- "B.Bryan/M.Bryan - J.Blake/J.Sock Match Result". Tennis Databank. Retrieved 24 February 2013.
- Jack Sock at the Association of Tennis Professionals
- Jack Sock at the International Tennis Federation
- Jack Sock at the International Tennis Federation Junior Profile