Coached by Craig Kardon Mother's name is Tauna (represented USA at Olympics for swimming in 1976 and volleyball in 1984); grandfather's name is Ernie (played for New York Knicks in 1950s); uncle's name is Kiki (general manager of NBA team the Denver Nuggets and a former UCLA basketball player).

SINGLES Winner (2): 2016 - 's-Hertogenbosch; 2014 - 's-Hertogenbosch. Finalist (4): 2018 - Stuttgart; 2017 - Stanford, Zhuhai; 2012 - Stanford. DOUBLES Winner (4): 2018 - Miami, US Open (both w/Barty); 2017 - Stanford (w/Spears); 2016 - Indian Wells (w/Mattek-Sands). Finalist (3): 2023 - San Diego (w/Collins); 2021 - Chicago 500 (w/Dolehide); 2016 - Cincinnati (w/Hingis). MIXED DOUBLES Finalist (1): 2016 - US Open (w/Ram); 2008 - Australian Open (w/Bhupathi). WTA 125 TITLES SINGLES(1): 2022 - Concord, MA, USA ADDITIONAL US Fed Cup Team, 2010, 2015-18; US Olympic Team, 2016.

Last season highlighted by QF at Charleston (as LL, d. Pegula en route, l. Anisimova). Also won WTA 125K Series tournament at Concord, MA (upset Pera in final to snap 16-match win streak)

Made 2r at 2021 Wimbledon (l. Siniakova); win over Govortsova in opening match was first at a major since beating Siegemund in 1r at 2018 Roland Garros

At 2021 Birmingham, reached first SF since 2018 (as qualifier, l. Kasatkina)

Missed almost two years of tennis due to complex regional pain syndrome in 2019 and then hand surgery after a freak microwave accident in 2020

Singles campaign in 2018 was highlighted by R-Up finish at Stuttgart. Defeated World No.1 Halep en route to final - now owns an impressive 3-1 record vs. World No.1s, also defeating Kerber (2017 Australian Open) and Ka.Pliskova (2017 US Open), and losing to S.Williams (2014 Miami)

In doubles in 2018 won titles at Miami and US Open (both w/Barty)

Posted best year-end finish in 2017 at No.10, making her debut in the elite bracket on November 6, 2017

Season highlighted by finishing as R-Up at both Stanford (l. Keys) and WTA Elite Trophy Zhuhai (l. Goerges), and SF runs at Australian Open (l. V.Williams) and US Open (l. Keys), in addition to QF showing at Wimbledon (l. Rybarikova)

Played inspirational role in Team USA's Fed Cup title triumph, going a perfect 8-0 in singles and doubles across 2017, including winning decisive doubles rubber w/Rogers vs. Belarus in final in Minsk - USA's first Fed Cup title win in 17 years

Best results of 2016 came on grass: won second career singles title at 's-Hertogenbosch (d. Mladenovic in F), SF at Birmingham (l. Strycova) and R16 at Wimbledon (l. Pavlyuchenkova)

In doubles in 2016, won first career title from first final at Indian Wells (w/Mattek-Sands, d. Goerges/Pliskova in F) and was runner-up at Cincinnati (w/Hingis, l. Mirza/Strycova)

Advanced to mixed doubles finals in 2016 at Australian Open (w/Tecau, l. Vesnina/Soares) and US Open (w/Ram, l. Pavic/Siegemund)

Competed in doubles at the Rio Olympics (w/Mattek-Sands); fell in 2r to eventual silver medalists Hingis/Bacsinszky

Won first career singles title at 's-Hertogenbosch in June 2014; with Keys also victorious at Eastbourne, marked first time two Americans won titles in the same week since February 2002 (V.Williams at Antwerp, Seles at Doha). Is 2-4 in career singles finals, having also won at 2016 's-Hertogenbosch. R-Up at 2012 Stanford (as lucky loser, l. S.Williams), 2017 Stanford (l. Keys), 2017 WTA Elite Trophy Zhuhai (l. Goerges) and 2018 Stuttgart (l. Ka.Pliskova)

Member of US Fed Cup Team, 2010, 2015-18

Made WTA debut as wildcard at 2006 San Diego; recorded first WTA win (main draw or qualifying) at 2009 Los Angeles (d. Garbin in 1r, l. Pennetta)

Winner of two singles and six doubles titles on ITF Circuit