| World Group II | 02/10 12:20 | 27 | Jelena Ostapenko v Anna K. Schmiedlova | Cancelled | |
| Fed Cup 2019 | 02/09 13:00 | 27 | [22] Jelena Ostapenko v Rebecca Sramkova [188] | 7-5,6-7,6-1 | |
| Fed Cup 2019 | 02/09 13:00 | 27 | [22] Jelena Ostapenko v Viktoria Kuzmova [46] | Cancelled | |
| WTA - St. Petersburg | 01/31 13:15 | 26 | [22] Jelena Ostapenko v Anastasia Pavlyuchenkova [32] | 4-6,4-6 | |
| WTA - St. Petersburg | 01/29 18:10 | 25 | [22] Jelena Ostapenko v Kristina Mladenovic [44] | 6-1,0-6,6-0 | |
| Australian Open - Frauen | 01/14 03:15 | 23 | [43] Maria Sakkari v Jelena Ostapenko [22] | 6-1,3-6,6-2 | |
| WTA - Sydney | 01/08 02:40 | 25 | [22] Jelena Ostapenko v Ashleigh Barty [15] | 3-6,3-6 | |
| WTA - Shenzhen | 01/01 08:40 | 25 | [22] Jelena Ostapenko v Monica Niculescu [99] | 0-6,2-6 | |
| WTA - Hong Kong | 10/08 11:00 | 25 | [317] Kristina Kucova v Jelena Ostapenko [18] | 5-7,6-3,6-2 | |
| WTA - Peking | 10/02 08:55 | 25 | [28] Qiang Wang v Jelena Ostapenko [13] | 6-0,6-0 | |
| WTA - Peking | 09/29 11:30 | 24 | [36] Magdalena Rybarikova v Jelena Ostapenko [12] | 4-6,6-7 | |
| WTA - Wuhan | 09/24 06:10 | 24 | [33] Daria Gavrilova v Jelena Ostapenko [12] | 6-2,6-4 | |
| WTA Seoul | 09/21 05:00 | 26 | [10] Jelena Ostapenko v Ekaterina Alexandrova [122] | 3-6,2-6 | |
| WTA Seoul | 09/19 06:45 | 25 | [10] Jelena Ostapenko v Lara Arruabarrena [71] | 6-3,6-3 | |
| US Open - Damen | 09/01 23:00 | 25 | [22] Maria Sharapova v Jelena Ostapenko [10] | 6-3,6-2 | |
| US Open - Damen | 08/30 19:05 | 24 | [73] Taylor Townsend v Jelena Ostapenko [10] | 6-4,3-6,4-6 | |
| US Open - Damen | 08/28 15:00 | 23 | [89] Andrea Petkovic v Jelena Ostapenko [10] | 4-6,6-4,5-7 | |
| WTA - Cincinnati | 08/14 01:15 | 24 | [11] Jelena Ostapenko v Alize Cornet [33] | 6-1,5-7,0-6 | |
| WTA - Montreal | 08/07 15:00 | 24 | [43] Johanna Konta v Jelena Ostapenko [11] | 6-7,6-1,6-2 | |
| Wimbledon - Damen | 07/12 12:00 | 28 | [12] Jelena Ostapenko v Angelique Kerber [10] | 3-6,3-6 | |
| Wimbledon - Damen | 07/10 12:00 | 27 | [33] Dominika Cibulkova v Jelena Ostapenko [12] | 5-7,4-6 | |
| Wimbledon - Damen | 07/09 10:30 | 26 | [12] Jelena Ostapenko v Aliaksandra Sasnovich [50] | 7-6,6-0 | |
| Wimbledon - Damen | 07/07 12:00 | 25 | [12] Jelena Ostapenko v Vitalia Diatchenko [132] | 6-0,6-4 | |
| Wimbledon - Damen | 07/05 17:10 | 24 | [12] Jelena Ostapenko v Kirsten Flipkens [45] | 6-1,6-3 | |
| Wimbledon - Damen | 07/03 17:30 | 23 | [12] Jelena Ostapenko v Katy Dunne [212] | 6-3,7-6 | |
| WTA - Eastbourne | 06/28 10:00 | 27 | [12] Jelena Ostapenko v Agnieszka Radwanska [31] | 2-6,5-7 | |
| WTA - Eastbourne | 06/27 10:00 | 26 | [12] Jelena Ostapenko v Mihaela Buzarnescu [28] | 6-1,6-2 | |
| WTA - Eastbourne | 06/26 10:00 | 25 | [12] Jelena Ostapenko v Kaia Kanepi [44] | 6-3,7-5 | |
| French Open - Frauen | 05/27 15:40 | 23 | [5] Jelena Ostapenko v Kateryna Kozlova [66] | 5-7,3-6 | |
| WTA - Rom | 05/18 12:40 | 27 | [40] Maria Sharapova v Jelena Ostapenko [6] | 6-7,6-4,7-5 |
Wikipedia - Jeļena Ostapenko
Jeļena Ostapenko (* 8. Juni 1997 in Riga), auch bekannt als Aļona Ostapenko, ist eine lettische Tennisspielerin. 2017 gewann sie als Ungesetzte den Titel bei den French Open.