S. Costoulas and G. Knutson are level 1-1 in their head-to-head since 2018 over 2 matches.
Today on TennisEdge 34 ATP & WTA matches analysed today Model probabilities, market read and our staked picks — see today's board →| Surface | S. Costoulas | G. Knutson |
|---|---|---|
| Hard | 1 | 1 |
| Surface | S. Costoulas | G. Knutson |
|---|---|---|
| Hard | 1523 (137-86) | 1665 (146-92) |
| Clay | 1506 (68-53) | 1419 (17-19) |
| Grass | 1416 (1-3) | 1624 (7-6) |
ELO is computed per surface from results since 2018; the win-loss pair is that surface's record.
| Date | Winner | Score | Event |
|---|---|---|---|
| Aug. 4, 2026 | G. Knutson | 2 - 0 | Warsaw · 1/16-finals · hard |
| April 2, 2025 | S. Costoulas | 2 - 1 | W50 Nantes · 1/8-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 |
| Date | Opponent | Score | Event | |
|---|---|---|---|---|
| Oct. 28, 2026 | L | A. Charaeva | 1 - 2 | Courmayeur (Italy) - Qualification · 1/8-finals · hard |
| Oct. 26, 2026 | W | R. Dencheva | 1 - 2 | Courmayeur (Italy) - Qualification · 1/16-finals · hard |
| Oct. 16, 2026 | L | M. Kubka | 0 - 1 | Rovereto · Quarter-finals · hard |
| Oct. 14, 2026 | W | S. Bandecchi | 2 - 1 | Rovereto · 1/8-finals · hard |
| Oct. 12, 2026 | W | E. Arango | 0 - 2 | Rovereto · 1/16-finals · hard |