E. Kalieva leads the head-to-head 2-1 since 2018 against S. Costoulas, over 3 matches.
Today on TennisEdge 31 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 | 1656 (95-89) | 1544 (136-83) |
| Clay | 1533 (81-58) | 1549 (67-50) |
| 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 | |
|---|---|---|---|---|
| Sept. 14, 2026 | L | K. Day | 0 - 2 | Guadalajara · 1/16-finals · hard |
| Aug. 30, 2026 | L | L. Tararudee | 1 - 2 | US Open · 1/64-finals · hard |
| Aug. 28, 2026 | W | V. Valdmannova | 2 - 1 | US Open · Final · hard |
| Aug. 26, 2026 | W | S. Costoulas | 2 - 1 | US Open · Semi-finals · hard |
| Aug. 25, 2026 | W | K. Mladenovic | 2 - 1 | US Open · Quarter-finals · hard |
| Date | Opponent | Score | Event | |
|---|---|---|---|---|
| Sept. 8, 2026 | L | H. Inoue | 1 - 2 | W50 Guiyang · 1/16-finals · hard |
| Sept. 4, 2026 | L | Z. Bai | 1 - 2 | W75 Tianjin (China) · Quarter-finals · hard |
| Sept. 3, 2026 | W | K. Sidorova | 2 - 0 | W75 Tianjin (China) · 1/8-finals · hard |
| Sept. 2, 2026 | W | S. Ye | 2 - 0 | W75 Tianjin (China) · 1/16-finals · hard |
| Aug. 26, 2026 | L | E. Kalieva | 2 - 1 | US Open · Semi-finals · hard |