Jackson Withrow

2011

Withrow competed at the 2011 US Open doubles tournament, where he received together with his partner Jack Sock a wildcard. In the first round they were beaten by 15-seeded Xavier Malisse from Belgium and Mark Knowles from the Bahamas.^[1]

2016

At the 2016 NCAA Men's Tennis Championship, Withrow and teammate Arthur Rinderknech lost the individual doubles championship to UCLA's Mackenzie McDonald and Martin Redlicki 4–6, 1–6 in the final match.

2017

Withrow and Sock received a wild card for the 2017 Cincinnati Masters doubles tournament, where they lost to Juan Sebastián Cabal and Fabio Fognini in the first round.

He won his first ATP level doubles match with partner Austin Krajicek at the 2017 US Open by defeating Philipp Oswald and André Sá in the first round.

2018

Withrow and Sock made a huge doubles run at the 2018 Delray Beach Open, first defeating Leander Paes and Purav Raja in the first round. The pair upset the Bryan Brothers in the quarterfinals in 3 sets, then won their next match to set up a finals match against Nicholas Monroe and John-Patrick Smith. Withrow and Sock prevailed in 3 sets to win the tournament, marking Withrow's first ever ATP tour-level title as well as his first doubles tour-level title.

Doubles: 2 (1 title, 1 runner-up)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Feb 2018	Ecuador Open, Ecuador	250 Series	Clay	Austin Krajicek	Nicolás Jarry Hans Podlipnik-Castillo	6–7(6–8), 3–6
Win	1–1	Feb 2018	Delray Beach Open, United States	250 Series	Hard	Jack Sock	Nicholas Monroe John-Patrick Smith	4–6, 6–4, [10–8]

Doubles: 7 (5 titles, 2 runner-ups)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Win	1–0	Jan 2017	Maui, United States	Challenger	Hard	Austin Krajicek	Bradley Klahn Tennys Sandgren	6–4, 6–3
Win	2–0	Feb 2017	Cuernavaca, Mexico	Challenger	Hard	Austin Krajicek	Kevin King Dean O'Brien	6–7(4–7), 7–6(7–5), [11–9]
Win	3–0	Jul 2017	Gatineau, Canada	Challenger	Hard	Bradley Klahn	Hans Hach Verdugo Vincent Millot	6–2, 6–3
Win	4–0	Jul 2017	Grandby, Canada	Challenger	Hard	Joe Salisbury	Marcel Felder Go Soeda	4–6, 6–3, [10–6]
Loss	4–1	Nov 2017	Shenzen, China	Challenger	Hard	Austin Krajicek	Sriram Balaji Vishnu Vardhan	6–7(3–7), 6–7(3–7)
Loss	4–2	Nov 2017	Hua Hin, Thailand	Challenger	Hard (i)	Austin Krajicek	Sanchai Ratiwatana Sonchat Ratiwatana	4–6, 7–5, [5–10]
Win	5–2	Mar 2018	Indian Wells, United States	Challenger	Hard	Austin Krajicek	Evan King Nathan Pasha	6–7(3–7), 6–1, [11–9]