E. Kalieva leads the head-to-head 2-1 since 2018 against S. Costoulas, over 3 matches.
Today on TennisEdge 34 ATP & WTA matches analysed today Model probabilities, market read and our staked picks — see today's board →| Surface | E. Kalieva | S. Costoulas |
|---|---|---|
| Hard | 2 | 0 |
| Clay | 0 | 1 |
| Surface | E. Kalieva | S. Costoulas |
|---|---|---|
| Hard | 1620 (100-95) | 1523 (137-86) |
| Clay | 1520 (81-59) | 1506 (68-53) |
| Grass | 1497 (5-8) | 1416 (1-3) |
ELO is computed per surface from results since 2018; the win-loss pair is that surface's record.
| Date | Winner | Score | Event |
|---|---|---|---|
| Aug. 26, 2026 | E. Kalieva | 2 - 1 | US Open · Semi-finals · hard |
| March 8, 2024 | E. Kalieva | 2 - 1 | ITF W35 Santo Domingo Women · Quarter-finals · hard |
| May 19, 2023 | S. Costoulas | 2 - 0 | W25 Feld am See · Semi-finals · clay |
| Date | Opponent | Score | Event | |
|---|---|---|---|---|
| Nov. 3, 2026 | L | I. Burillo Escorihuela | 0 - 2 | Cali · 1/16-finals · clay |
| Oct. 28, 2026 | L | E. McDonald | 1 - 0 | W100 New Braunfels · 1/16-finals · hard |
| Oct. 16, 2026 | W | S. Broadus | 2 - 1 | W100 Edmond, OK · 1/16-finals · hard |
| Oct. 16, 2026 | L | K. Penickova | 1 - 2 | W100 Edmond, OK · 1/8-finals · hard |
| Oct. 10, 2026 | L | K. Okamura | 2 - 0 | Suzhou · Semi-finals · hard |
| Date | Opponent | Score | Event | |
|---|---|---|---|---|
| Nov. 11, 2026 | L | L. Samson | 2 - 0 | Sopo (Colombia) - Qualification · 1/8-finals · clay |
| Nov. 9, 2026 | W | A. Esquivel Useche | 2 - 0 | Sopo (Colombia) - Qualification · 1/16-finals · clay |
| Nov. 3, 2026 | L | M. Bassols | 0 - 2 | Cali · 1/16-finals · clay |
| Oct. 27, 2026 | L | V. Strakhova | 2 - 0 | Queretaro · 1/16-finals · clay |
| Oct. 5, 2026 | L | D. Astakhova | 0 - 1 | Suzhou · 1/16-finals · hard |