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Kayla DayPhoto: si.robi, CC BY-SA 2.0, via Wikimedia Commons (cropped)

TennisWTALeft-handed

Kayla Day

United StatesAge, ranking and results

Kayla Day is a tennis player on the WTA Tour who reached a career-high ranking of No. 84 on April 1, 2024.

42 WTA Tour matches

Updated

WTA rankingNo. 126635 pts2026 record4-7Career highNo. 84Apr 1, 2024Agatha's record4-04 graded calls since Oct 1, 2026

About Kayla Day

Kayla Day, a left-hander with a two-handed backhand, plays on the WTA Tour. Born on September 28, 1999, in Santa Barbara, California, United States, she turned pro in 2017. Her coach is Pat Cash, and she reached a career-high WTA Tour ranking of No. 84 on April 1, 2024.

Agatha Research DeskUpdated Oct 24, 2026

Match history42

Every WTA Tour, Grand Slam and Olympic main-draw match in our records, newest first. A walkover is listed but never counted in a record.

2026: 18-17

DateTournamentRoundOpponentResultScoreSurface
Oct 24Toray Pan Pacific Open TennisQualifying 1st RoundZhang ShuaiL3-6, 6-3, 5-7Hard
Oct 21Japan OpenRound 2Antonia RuzicL4-6 ret. (ret.)Hard
Oct 20Japan OpenRound 1Sofia KeninW6-3, 6-2Hard
Oct 17Japan OpenQualifying FinalMaya JointL3-6, 6-3, 3-6Hard
Oct 16Japan OpenQualifying 1st RoundEna KoikeW7-5, 6-3Hard
Sep 16Guadalajara Open presentado por SantanderRound 2Liudmila SamsonovaL6-7(4), 6-2, 6-7(5)Hard
Sep 14Guadalajara Open presentado por SantanderRound 1Elvina KalievaW7-6(9), 6-4Hard
Sep 9Kia OpenRound 2Elsa JacquemotL6-7(3), 2-6Hard
Sep 7Kia OpenRound 1Suzan LamensW6-4, 6-3Hard
Aug 24US OpenQualifying 1st RoundJulieta ParejaL3-6, 1-6Hard
Aug 15Cincinnati OpenRound 1Zhang ShuaiL6-2, 2-6, 2-6Hard
Aug 12Cincinnati OpenQualifying FinalYuan YueW2-6, 7-5, 6-3Hard
Show 23 more
Aug 11Cincinnati OpenQualifying 1st RoundTaylah PrestonW6-3, 6-2Hard
Aug 5National Bank OpenRound 2Coco GauffL2-6, 5-7Hard
Aug 3National Bank OpenRound 1Diane ParryW3-6, 6-3, 7-5Hard
Aug 1National Bank OpenQualifying FinalGuo HanyuW7-5, 6-2Hard
Jul 28Odlum Brown VanOpenRound 1Mai HontamaL7-6(3), 3-6, 4-6Hard
Jun 30WimbledonRound 1Madison KeysL7-6(5), 4-6, 3-6Grass
Jun 25WimbledonQualifying FinalKatarzyna KawaW6-2, 7-5Grass
Jun 24WimbledonQualifying 2nd RoundErika AndreevaW6-2, 6-2Grass
Jun 23WimbledonQualifying 1st RoundCadence BraceW6-4, 6-3Grass
Jun 9Lexus Ilkley OpenRound 1Mary StoianaL5-7, 4-6Grass
Jun 4Lexus Birmingham OpenRound 2Mananchaya SawangkaewL4-6, 1-6Grass
Jun 2Lexus Birmingham OpenRound 1Hanne VandewinkelW7-6(2), 6-2Grass
May 18Roland GarrosQualifying 1st RoundOceane DodinL4-6, 6-2, 6-7(13)Clay
Mar 31Credit One Charleston OpenRound 1Paula BadosaL4-6, 3-6Clay
Mar 29Credit One Charleston OpenQualifying FinalYuan YueW6-1, 6-4Clay
Mar 28Credit One Charleston OpenQualifying 1st RoundHaley GiavaraW6-0, 6-2Clay
Mar 7Indian WellsRound 2Iga SwiatekL0-6, 6-7(2)Hard
Mar 5Indian WellsRound 1Francesca JonesW6-3, 6-1Hard
Mar 3Indian WellsQualifying FinalDarja SemenistajaW6-2, 6-1Hard
Mar 1Indian WellsQualifying 1st RoundAliaksandra SasnovichW6-2, 7-5Hard
Feb 21ATX OpenQualifying 1st RoundMadison BrengleL2-6, 4-6Hard
Feb 18Dow Tennis ClassicRound 2Anna FreyL4-6, 6-3, 3-6Hard
Feb 17Dow Tennis ClassicRound 1Elizabeth ColemanW6-4, 6-2Hard

How she is doing nowThrough Oct 24

WTA rankingNo. 126635 points, ESPN, Nov 5
2026 record4-7clay 0-1, hard 4-5, grass 0-1
Last 104-6LLWLWLWLWLNewest first. Two losses in a row.

Agatha on Kayla Day

Every graded call Agatha sealed on her matches since Oct 1, 2026, newest first. Each is 1 unit at its sealed price; the number opens its receipt.

Record4-0Units+2.67u4 graded calls, 1 void
DateMatchCallPriceResultUnitsReceipt
Oct 23vs Zhang ShuaiLEANZhang Shuai to win-119WON+0.84u#1601
Oct 21vs Antonia RuzicLEANAntonia Ruzic to win-106WON+0.94u#1500
Oct 19vs Kimberly BirrellLEANKimberly Birrell to win-164VOID0.00u#1389
Oct 17vs Maya JointLEANMaya Joint to win-139WON+0.72u#1268
Oct 16vs Ena KoikePREDKayla Day to win-588WON+0.17u#1129

CareerPro since 2017

9years2017 to 2026
  1. 2016First WTA matchLost to Ana Konjuh, WTA Connecticut Open
  2. 2024Career high No. 84Apr 1, 2024
  3. Oct 21, 2026Latest matchLost to Antonia Ruzic, Japan Open

Grand Slam titles

AO0Round 1 (2024)0-2 in our records
RG0Round 3 (2023)2-2 in our records
WIM0Round 1 (2026)0-1 in our records
USO0Round 2 (2016)1-3 in our records

First WTA match

Aug 21, 2016: lost to Ana Konjuh 0-6, 3-6, 6-0WTA Connecticut Open, on hard

Latest match

Oct 21, 2026: lost to Antonia Ruzic 4-6 ret.Japan Open, Round 2, on hard court

ITF finals

ITF: 20 singles finals, 11 won; 6 doubles finals, 4 won. From 2016 to 2026.

Singles

  1. W
    Sep 2026Won the title at Berkeley Tennis Club Challenge, United States (W50, hard), beating Janae Preston 7-5, 6-4.
  2. L
    May 2026Runner-up at Zaragoza Open, Spain (W75, clay), losing to Jennifer Ruggeri 6-3, 3-6, 6-7(3).
  3. W
    Apr 2026Won the title at ITF Boca Raton, United States (W35, clay), beating Mary Stoiana 6-3, 6-1.
  4. W
    Feb 2026Won the title at ITF Orlando, United States (W50, hard), beating Katrina Scott 6-4, 6-2.
  5. W
    Jan 2026Won the title at ITF Le Lamentin (Martinique), France (W35, hard), beating Jenny Lim 6-4, 6-2.
  6. W
    Sep 2025Won the title at Templeton Open, United States (W75, hard), beating Kayla Cross 6-2, 3-0 ret.
  7. W
    Aug 2025Won the title at ITF Southaven, United States (W25, hard), beating Ana Sofia Sanchez 6-4, 6-1.
  8. L
    Jul 2025Runner-up at ITF San Diego, United States (W15, hard), losing to Tianmei Wang 4-6, 3-6.
Show 12 more
  1. L
    Apr 2024Runner-up at Charlottesville Open, United States (W75, clay), losing to Louisa Chirico 1-6, 5-7.
  2. L
    Oct 2023Runner-up at Tyler Pro Challenge, United States (W80, hard), losing to Emma Navarro 3-6, 4-6.
  3. W
    Jul 2023Won the title at Championnats de Granby, Canada (W100, hard), beating Katherine Sebov 6-4, 2-6, 7-5.
  4. W
    May 2023Won the title at Bonita Springs Championship, United States (W100, clay), beating Ann Li 6-2, 6-2.
  5. W
    Oct 2022Won the title at ITF Redding, United States (W25, hard), beating Jamie Loeb 6-3, 6-4.
  6. L
    Jun 2022Runner-up at ITF Wichita, United States (W25, hard), losing to Elizabeth Mandlik 3-6, 3-6.
  7. W
    May 2022Won the title at ITF Naples, United States (W25, clay), beating Ana Sofia Sanchez 6-1, 6-1.
  8. L
    Oct 2021Runner-up at ITF Austin, United States (W25, hard), losing to Mirjam Bjorklund 6-2, 2-6, 2-6.
  9. L
    Sep 2021Runner-up at ITF Fort Worth, United States (W25, hard), losing to Kaia Kanepi 2-6, 1-6.
  10. L
    Feb 2017Runner-up at Rancho Santa Fe Open, United States ($25,000, hard), losing to Bianca Andreescu 4-6, 1-6.
  11. W
    Oct 2016Won the title at Tennis Classic of Macon, United States ($50,000, hard), beating Danielle Collins 6-1, 6-3.
  12. L
    May 2016Runner-up at ITF Naples, United States ($25,000, clay), losing to Valeria Solovyeva 4-6, 0-6.

Doubles

  1. W
    Jan 2026Won the title at ITF Le Lamentin (Martinique), France (W35, hard) with Jenna Dean, beating Jenny Lim and Margaux Rouvroy 6-4, 1-6, [10-7].
  2. L
    May 2025Runner-up at ITF Boca Raton, United States (W35, clay) with Allura Zamarripa, losing to Fiona Crawley and Alana Smith 4-6, 2-6.
  3. W
    Oct 2024Won the title at Edmond Open, United States (W75, hard) with Jaimee Fourlis, beating Sophie Chang and Rasheeda McAdoo 7-5, 7-5.
  4. W
    Feb 2019Won the title at Rancho Santa Fe Open, United States (W25, hard) with Sophia Whittle, beating Eudice Chong and You Xiaodi 6-2, 5-7, [10-7].
  5. L
    Feb 2017Runner-up at Midland Tennis Classic, United States ($100,000, indoor hard) with Caroline Dolehide, losing to Ashley Weinhold and Caitlin Whoriskey 6-7(1), 3-6.
  6. W
    Feb 2017Won the title at Rancho Santa Fe Open, United States ($25,000, hard) with Caroline Dolehide, beating Anhelina Kalinina and Chiara Scholl 6-3, 1-6, [10-7].

Most often against

The players she has met most in our records, with the head-to-head.

Madison Keys3 meetings
1-2Day trails

Last: Jun 30, 2026, Wimbledon Round 1, lost

Moyuka Uchijima3 meetings
2-1Day leads

Last: Aug 5, 2024, National Bank Open Qualifying Final, lost

Yuan Yue3 meetings
2-1Day leads

Last: Aug 12, 2026, Cincinnati Open Qualifying Final, won

Aliaksandra Sasnovich2 meetings
1-1All square

Last: Mar 1, 2026, BNP Paribas Open Qualifying 1st Round, won

Ann Li2 meetings
1-1All square

Last: Feb 25, 2024, Cymbiotika San Diego Open Qualifying Final, lost

Carol Zhao2 meetings
2-0Day leads

Last: Aug 14, 2023, Golden Gate Open at Stanford Round 1, won

Sources and updates

Results and schedules come from Agatha's own records of the WTA Tour. The WTA ranking is ESPN's, as of Nov 5, 2026.

Updated Nov 11, 2026, 7:24 AM ET. Results and form refresh after every match; biography facts are checked weekly.