it to the final, falling to the Italian pair of Fabio Fognini and Simone Bolelli. In July 2013, he won his first ATP title in doubles also with Stadler at the 250 level at the 2013 Bastad Skistar Swedish Open and reached the final of the 2013 Umag Open in Croatia also on clay. 2017–18: Continued doubles success: First Masters final & US Open quarterfinal, top 30 debut Following three semi-final finishes in Chennai, Auckland and Quito all with Artem Sitak, Monroe reached a top 40 doubles ranking of No. 39 on 3 April 2017 after the biggest run of his career to the final of the 2017 Miami Open with Jack Sock. He later peaked at a career-high of No. 30 on 2 October 2017 after reaching his ninth final at the 2017 ATP Shenzhen Open partnering Nikola Mektic. Partnering Artem Sitak he reached the third round at the 2017 Wimbledon Championships for their first time at this Major and in his career. With John-Patrick Smith at the 2017 US Open (tennis), he reached the quarterfinals at a Grand Slam also for the first time in his career. The pair also won the title at the 2018 Atlanta Open, and reached earlier in February 2018 the final at the 2018 Delray Beach Open, Monroe’s tenth. 2019–2020: Thirteenth final, Second Major quarterfinal at the French Open Monroe reached the final of the 2019 Winston-Salem Open partnering compatriot Tennys Sandgren. Partnering fellow American Tommy Paul, he also reached at the 2020 French Open the second doubles Grand Slam quarterfinal of his career. 2021–2022: Australian Open third round He reached the third round at the 2021 Australian Open for the first time at this Major partnering Frances Tiafoe. He entered the main draw at the 2022 Wimbledon Championships as an alternate pair again with Tommy Paul. World TeamTennis Nicholas has played three seasons with World TeamTennis starting in 2006 when he debuted in the league with the Springfield Lasers, followed by a season with the Kansas City Explorers in 2012 and the Washington Kastles in 2019. It was announced that he will re-joining the Washington Kastles during the 2020 WTT season set to begin July 12 at The Greenbrier. Significant finals ATP Masters 1000 finals Doubles: 1 (1 runner-up) ATP career finals Doubles: 13 (4 titles, 9 runner-ups) ATP Challenger Tour finals Doubles: 33 (13–20) Doubles performance timeline Current after the 2022