Kayla Day - WTA #157 (2026-04-06)
| wtatennis.com | WTA | Country |  United States of America |
| Wikipedia | Eng / Fr | Birth | - |
| Career best ranking | Never ranked | Résidence |  Unknown |
| Height | - | ||
| Weight | - |
| Conditions | W | D | ratio |
|---|---|---|---|
| Clay | 2 | 4 | 33.33% |
| Hard (out.) | 1 | 7 | 12.50% |
| Hard (in.) | 1 | 2 | 33.33% |
| TOTAL | 4 | 13 | 23.53% |
| # | Date | Categ | Tournament | Conditions | Round | #Rank | Opponent | Score | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2026-03-30 | 500 | Charleston WTA 500 | Clay | 32e | #194 |  #70 Paula Badosa | 6/4 6/3 | |
| 2 | 2026-03-02 | 1000 | WTA Indian Wells Masters | Hard (out.) | 32e | #194 |  #2 Iga Swiatek | 6/0 7/6(2) | |
| 3 | 2026-03-02 | 1000 | WTA Indian Wells Masters | Hard (out.) | 64e | #194 |  #72 Francesca Jones | 6/3 6/1 | |
| 4 | 2024-05-26 | GS |  WTA Roland Garros | Clay | 64e | #86 | #107 Hailey Baptiste | 4/6 6/2 6/2 | |
| 5 | 2024-03-06 | 1000 | WTA Indian Wells Masters | Hard (out.) | 32e | #92 |  #85 Nadia Podoroska | 7/6(3) 6/4 | |
| 6 | 2024-01-14 | GS |  WTA Australian Open | Hard (out.) | 64e | #97 |  #86 Viktoriya Tomova | 6/4 6/2 | |
| 7 | 2023-09-25 | 500 |  Tokyo Open WTA | Hard (in.) | 8e | #97 |  #18 Veronika Kudermetova | 6/3 6/3 | |
| 8 | 2023-09-25 | 500 | Tokyo Open WTA | Hard (in.) | 16e | #97 | #174 Moyuka Uchijima | 6/2 6/2 | |
| 9 | 2023-08-28 | GS | WTA US Open | Hard (out.) | 64e | #91 |  #30 Sorana Cirstea | 6/2 6/3 | |
| 10 | 2023-08-07 | 1000 |  Rogers Cup WTA | Hard (out.) | 32e | #97 |  #39 Marie Bouzkova | 7/6(1) 6/3 | |
| 11 | 2023-05-28 | GS | WTA Roland Garros | Clay | 16e | #137 |  #97 Anna Karolina Schmiedlova | 6/1 6/3 | |
| 12 | 2023-05-28 | GS | WTA Roland Garros | Clay | 32e | #137 | #23 Madison Keys | 6/2 4/6 6/4 | |
| 13 | 2023-05-28 | GS | WTA Roland Garros | Clay | 64e | #137 | #153 Kristina Mladenovic | 7/5 6/1 | |
| 14 | 2023-04-03 | 500 | Charleston WTA 500 | Clay | 32e | #182 | #186 Sachia Vickery | 6/4 6/2 | |
| 15 | 2022-10-31 | Finals | Midland LLTL-WTA Finals | Hard (in.) | 16e | #176 |  #127 Su Jeong Jang | 6/3 3/6 6/3 | |
| 16 | 2022-10-17 | 1000 |  Guadalajara Open WTA | Hard (out.) | 32e | #216 | #443 Eugenie Bouchard | 7/5 6/3 | |
| 17 | 2022-08-01 | 500 | San Jose Open WTA | Hard (out.) | 16e | #230 | #168 Caroline Dolehide | 7/6(5) 6/4 |
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