| WTA - Doha | 02/11 08:00 | 14 | [56] Claire Liu v Dayana Yastremska [102] | 3-6,4-6 | |
| WTA - Abu Dhabi | 02/07 15:20 | 25 | [28] Jil Teichmann v Dayana Yastremska [102] | 6-3,7-6 | |
| WTA - Abu Dhabi | 02/06 07:00 | 19 | [56] Claire Liu v Dayana Yastremska [102] | 2-6,6-3,4-6 | |
| WTA - Abu Dhabi | 02/05 07:00 | 14 | [125] Laura Siegemund v Dayana Yastremska [103] | 3-6,1-6 | |
| WTA - Hua Hin | 02/02 08:55 | 26 | [103] Dayana Yastremska v Tatjana Maria [63] | 0-6,4-6 | |
| WTA - Hua Hin | 01/31 11:35 | 25 | [103] Dayana Yastremska v Moyuka Uchijima [116] | 6-3,6-7,6-2 | |
| Australian Open - Kvinder | 01/16 03:35 | 23 | [101] Dayana Yastremska v Jelena Ostapenko [17] | 4-6,2-6 | |
| WTA - Adelaide | 12/31 08:20 | 45 | [39] Anhelina Kalinina v Dayana Yastremska [101] | 6-4,6-4 | |
| WTA - Angers | 12/06 15:30 | 25 | [99] Dayana Yastremska v Sofia Kenin [240] | 4-6,2-6 | |
| WTA - Andorra | 12/01 12:00 | 26 | [266] Weronika Falkowska v Dayana Yastremska [101] | 6-4,5-7,6-3 | |
| WTA - Andorra | 11/29 14:50 | 25 | [169] Nigina Abduraimova v Dayana Yastremska [101] | 1-6,4-6 | |
| WTA - Rouen | 10/18 10:50 | 25 | [170] Ana Konjuh v Dayana Yastremska [99] | 1-6,6-1,6-2 | |
| WTA - Cluj-Napoca | 10/12 15:00 | 26 | [94] Dayana Yastremska v Jasmine Paolini [78] | 4-6,1-6 | |
| WTA - Cluj-Napoca | 10/10 10:55 | 25 | [98] Tamara Korpatsch v Dayana Yastremska [94] | 3-6,6-4,5-7 | |
| WTA - Cluj-Napoca | 10/08 12:00 | 14 | Dayana Yastremska v Gabriela Lee | Cancelled | |
| WTA - Portoroz | 09/12 17:30 | 25 | [83] Emma Raducanu v Dayana Yastremska [89] | Retired | |
| US Open - Kvinder | 08/29 20:05 | 23 | [20] Madison Keys v Dayana Yastremska [86] | 7-6,6-3 | |
| WTA - Cleveland | 08/21 20:40 | 25 | [37] Alize Cornet v Dayana Yastremska [80] | 6-2,6-1 | |
| WTA - Cincinnati | 08/13 16:10 | 14 | [79] Dayana Yastremska v Petra Martic [58] | 2-6,2-6 | |
| WTA - Washington | 08/02 19:10 | 25 | [77] Dayana Yastremska v Victoria Azarenka [20] | 4-6,0-6 | |
| Wimbledon - Kvinder | 06/28 13:55 | 23 | [111] Ana Bogdan v Dayana Yastremska [74] | 6-2,6-2 | |
| WTA - Eastbourne | 06/20 13:50 | 24 | [74] Dayana Yastremska v Donna Vekic [93] | 0-6,2-6 | |
| WTA - Birmingham | 06/17 13:45 | 27 | [79] Dayana Yastremska v Shuai Zhang [54] | 5-7,4-6 | |
| WTA - Birmingham | 06/16 12:40 | 26 | [16] Jelena Ostapenko v Dayana Yastremska [79] | 6-3,5-7,5-7 | |
| WTA - Birmingham | 06/14 10:00 | 25 | [79] Dayana Yastremska v Magda Linette [65] | 6-4,6-3 | |
| WTA - Hertogenbosch | 06/07 11:00 | 25 | [30] Ekaterina Alexandrova v Dayana Yastremska [80] | 2-6,7-6,6-2 | |
| French Open - Kvinder | 05/23 10:45 | 23 | [43] Alison Riske v Dayana Yastremska [82] | 6-3,6-3 | |
| WTA - Paris | 05/10 11:45 | 25 | [80] Dayana Yastremska v Claire Liu [118] | 1-6,3-6 | |
| WTA - Madrid | 04/30 10:40 | 25 | [77] Marie Bouzkova v Dayana Yastremska [92] | 3-6,7-6,6-1 | |
| WTA - Madrid | 04/28 12:00 | 24 | [79] Greet Minnen v Dayana Yastremska [92] | Retired |
Wikipedia - Dajana Jastremska
Dajana Oleksandrivna Jastremska (ukrainsk: Даяна Олександрівна Ястремська, født 15. maj 2000 i Odessa) er en ukrainsk tennisspiller.
Hun vandt i oktober 2018 sin første WTA-turnering, da hun vandt Hong Kong Open. Ved Wimbledon-mesterskaberne 2016 tabte hun finalen i pigesingle til Anastasia Potapova.
Jastremska var 14. oktober 2018 nummer 102 på WTAs verdensrangliste i single.