 Day at the2023 French Open | |
| Country (sports) |  United States |
|---|---|
| Residence | Lake Nona, Orlando, Florida |
| Born | (1999-09-28)September 28, 1999 (age 26)[1] Santa Barbara, California |
| Height | 1.73 m (5 ft 8 in) |
| Turned pro | 2017 |
| Plays | Left (two-handed backhand) |
| Coach | Pat Cash |
| Prize money | US$ 1,286,252 |
| Singles | |
| Career record | 234–189 |
| Career titles | 7ITF |
| Highest ranking | No. 84 (April 1, 2024) |
| Current ranking | No. 418 (August 25, 2025) |
| Grand Slam singles results | |
| Australian Open | 1R (2017,2024) |
| French Open | 3R (2023) |
| Wimbledon | Q2 (2023,2024) |
| US Open | 2R (2016) |
| Doubles | |
| Career record | 38–38 |
| Career titles | 3 ITF |
| Highest ranking | No. 133 (January 29, 2018) |
| Current ranking | No. 528 (June 23, 2025) |
| Grand Slam doubles results | |
| Australian Open | 1R (2024) |
| US Open | 2R (2017) |
| Last updated on: 23 June 2025. | |
Kayla Day (born September 28, 1999)[1] is an American professionaltennis player. She has a career-high singles ranking of world No. 84 by theWTA. As a junior, she won one junior major title, at the2016 US Open. There, she finished runner-up in thedoubles event, partnering withCaroline Dolehide.
Despite having success as junior, Day has mostly spent time playing on theITF Women's Circuit instead ofWTA Tour, due to her ranking. She officially turned professional in 2017, at theAustralian Open.[2]
Day started playing tennis when she was seven years old.[3] Her mother is from theCzech Republic.[4]
She was No. 1 in the girls' 12s, 14s, 16s, and 18s national US rankings.[3] In 2016, Day climbed to the top of the ITF junior rankings by winning the2016 Junior US Open, reaching semifinals at the2016 Wimbledon, and reaching the final at theOrange Bowl the previous year.[5][6] She also achieved her best doubles result at a major event as a runner-up at the2016 Junior US Open with partnerCaroline Dolehide.[7] She won the 2016USTA Girls 18s National Championships to earn a wildcard into the main draw of theUS Open.[6][8] Day has been coached from the beginning by Larry Mousouris, who has coached two other Junior US Open winners, Michael Falberg andTim Trigueiro.
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Day made herWTA Tour debut at theConnecticut Open in New Haven, after reaching the main draw as alucky loser, having defeatedNaomi Broady andKirsten Flipkens along the way. The following week, she played in her first career Grand Slam at theUS Open, and won her first match against compatriotMadison Brengle.
Shortly after turning 17, Day won her first career title at the 50k tournament inMacon, Georgia. The following week atScottsdale, she reached the semifinals to enter the top 200 for the first time. With her combined performance at these two events, she won the AustralianOpen Wild Card Challenge to earn a spot in the main draw at the first major event of 2017.[9]
Day picked up her first tour wins of the season — and first wins of her career at aPremier Mandatory event — at the2017 Indian Wells Open, including a victory over 2017 Australian Open semifinalistMirjana Lučić-Baroni to reach the third round of the tournament.
After almost five years of absence at the WTA 1000 level, she qualified for the main draw at theGuadalajara Open where she lost in the first round toEugenie Bouchard.[10]
Day won three matches in theFrench Open qualifying to make her first main draw atRoland Garros, as well as her first Grand Slam tournament appearance since the2017 US Open.[11] She defeated wildcardKristina Mladenovic[12] and 20th seedMadison Keys to reach the third round of a major for the first time.[13][14] Day lost toAnna Karolína Schmiedlová in round three.[15]
She claimed the title at theChampionnats de Granby, defeatingKatherine Sebov in the final and moving to world No. 94 as a result.[16]
Day lost toViktoriya Tomova in the first round of theAustralian Open.[17]
At theIndian Wells Open, she entered the main draw as a lucky loser replacing fourth seed and defending champion,Elena Rybakina, directly in the second round[18] where she lost toNadia Podoroska.[19]She reached a career-high ranking of No. 84, on 1 April 2024.[citation needed]
She lost to lucky loserHailey Baptiste in the first round at theFrench Open.[20]
| W | F | SF | QF | #R | RR | Q# | DNQ | A | NH |
Only main-draw results inWTA Tour,Grand Slam tournaments,Billie Jean King Cup,United Cup,Hopman Cup andOlympic Games are included in win–loss records.
Current through the2023 Korea Open.
| Tournament | 2016 | 2017 | 2018 | ... | 2022 | 2023 | 2024 | SR | W–L | Win % |
|---|---|---|---|---|---|---|---|---|---|---|
| Grand Slam tournaments | ||||||||||
| Australian Open | A | 1R | Q3 | A | Q2 | 1R | 0 / 2 | 0–2 | 0% | |
| French Open | A | Q2 | Q1 | A | 3R | 1R | 0 / 2 | 2–2 | 50% | |
| Wimbledon | A | Q1 | A | A | Q2 | Q2 | 0 / 0 | 0–0 | – | |
| US Open | 2R | 1R | Q1 | Q2 | 1R | Q1 | 0 / 3 | 1–3 | 25% | |
| Win–loss | 1–1 | 0–2 | 0–0 | 0–0 | 2–2 | 0–2 | 0 / 7 | 3–7 | 30% | |
| WTA 1000 | ||||||||||
| Qatar Open[a] | A | A | A | A | A | 0 / 0 | 0–0 | – | ||
| Dubai[a] | A | A | A | A | A | 0 / 0 | 0–0 | – | ||
| Indian Wells Open | A | 3R | 1R | A | A | 0 / 2 | 2–2 | 50% | ||
| Miami Open | A | Q1 | A | A | A | 0 / 0 | 0–0 | – | ||
| Madrid Open | A | A | A | A | A | 0 / 0 | 0–0 | – | ||
| Italian Open | A | A | A | A | A | 0 / 0 | 0–0 | – | ||
| Canadian Open | A | A | A | A | 1R | 0 / 1 | 0–1 | 0% | ||
| Cincinnati Open | A | Q1 | A | A | A | 0 / 0 | 0–0 | – | ||
| Guadalajara Open | A | A | A | 1R | A | 0 / 1 | 0–1 | 0% | ||
| Wuhan Open | A | A | A | NH | 0 / 0 | 0–0 | – | |||
| China Open | A | A | A | NH | Q1 | 0 / 0 | 0–0 | – | ||
| Win–loss | 0–0 | 2–1 | 0–1 | 0–1 | 0–1 | 0 / 4 | 2–4 | 33% | ||
| Career statistics | ||||||||||
| 2016 | 2017 | 2018 | ... | 2022 | 2023 | SR | W–L | Win % | ||
| Tournaments | 2 | 5 | 2 | 2 | 6 | Career total: 17 | ||||
| Titles | 0 | 0 | 0 | 0 | 0 | Career total: 0 | ||||
| Finals | 0 | 0 | 0 | 0 | 0 | Career total: 0 | ||||
| Overall win–loss | 1–2 | 3–5 | 0–2 | 0–2 | 3–6 | 0 / 17 | 7–17 | 29% | ||
| Year-end ranking[b] | 195 | 154 | 300 | 195 | 87 | $860,655 | ||||
| Legend |
|---|
| W100 tournaments (2–0) |
| W80 tournaments (0–1) |
| W60/75 tournaments (2–1) |
| W25/35 tournaments (3–5) |
| W15 tournaments (0–1) |
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
|---|---|---|---|---|---|---|---|
| Loss | 0–1 | May 2016 | ITF Naples, United States | 25,000 | Clay |  Valeria Solovyeva | 4–6, 0–6 |
| Win | 1–1 | Oct 2016 | Tennis Classic of Macon, United States | 50,000 | Hard |  Danielle Collins | 6–1, 6–3 |
| Loss | 1–2 | Feb 2017 | Rancho Santa Fe Open, United States | 25,000 | Hard |  Bianca Andreescu | 4–6, 1–6 |
| Loss | 1–3 | Sep 2021 | ITF Fort Worth, United States | W25 | Hard |  Kaia Kanepi | 2–6, 1–6 |
| Loss | 1–4 | Oct 2021 | ITF Austin, United States | W25 | Hard |  Mirjam Björklund | 6–2, 2–6, 2–6 |
| Win | 2–4 | May 2022 | ITF Naples, United States | W25 | Clay |  Ana Sofía Sánchez | 6–1, 6–1 |
| Loss | 2–5 | Jun 2022 | ITF Wichita, United States | W25 | Hard | Elizabeth Mandlik | 3–6, 3–6 |
| Win | 3–5 | Oct 2022 | ITF Redding, United States | W25 | Hard | Jamie Loeb | 6–3, 6–4 |
| Win | 4–5 | May 2023 | Bonita Springs Championship, United States | W100 | Clay | Ann Li | 6–2, 6–2 |
| Win | 5–5 | Jul 2023 | Championnats de Granby, Canada | W100 | Hard | Katherine Sebov | 6–4, 2–6, 7–5 |
| Loss | 5–6 | Oct 2023 | Tyler Pro Challenge, United States | W80 | Hard | Emma Navarro | 3–6, 4–6 |
| Loss | 5–7 | Apr 2024 | Charlottesville Open, United States | W75 | Clay | Louisa Chirico | 1–6, 5–7 |
| Loss | 5–8 | Jul 2025 | ITF San Diego, United States | W15 | Hard | Tianmei Wang | 4–6, 3–6 |
| Win | 6–8 | Aug 2025 | ITF Southaven, United States | W25 | Hard | Ana Sofía Sánchez | 6–4, 6–1 |
| Win | 7–8 | Sep 2025 | ITF Templeton, United States | W75 | Hard | Kayla Cross | 6–2, 3–0 ret. |
| Legend |
|---|
| W100 tournaments |
| W75 tournaments |
| W25/35 tournaments |
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Feb 2017 | Midland Tennis Classic, United States | 100,000 | Hard (i) | Caroline Dolehide | Ashley WeinholdCaitlin Whoriskey | 6–7(1), 3–6 |
| Win | 1–1 | Feb 2017 | Rancho Santa Fe Open, United States | 25,000 | Hard | Caroline Dolehide |  Anhelina KalininaChiara Scholl | 6–3, 1–6, [10–7] |
| Win | 2–1 | Feb 2019 | Rancho Santa Fe Open, United States | W25 | Hard | Sophia Whittle |  Eudice Chong You Xiaodi | 6–2, 5–7, [10–7] |
| Win | 3–1 | Oct 2024 | Edmond Open, United States | W75 | Hard |  Jaimee Fourlis | Sophie ChangRasheeda McAdoo | 7–5, 7–5 |
| Loss | 3–2 | May 2025 | ITF Boca Raton, United States | W35 | Clay | Allura Zamarripa | Fiona CrawleyAlana Smith | 4–6, 2–6 |
| Result | Year | Tournament | Surface | Opponent | Score |
|---|---|---|---|---|---|
| Win | 2016 | US Open | Hard |  Viktória Kužmová | 6–3, 6–2 |
| Result | Year | Tournament | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|
| Loss | 2016 | US Open | Hard | Caroline Dolehide | Jada HartEna Shibahara | 6–4, 2–6, [11–13] |
