H2H data updated: 2026-09-13 00:00 UTC
Ayla Aksu holds a 1–0 lead over Sofia Costoulas in their WTA head-to-head. Across 1 main-draw meeting, Ayla Aksu leads 1–0 on hard courts. Most recently, Ayla Aksu won the 2026 Prague Open first round 2-6 6-3 6-4.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Ayla Aksu | 2-6 6-3 6-4 | Sofia Costoulas | Match data | Jul 20, 2026 | R32 | Prague Open | WTA 250 | Hard |
| Sofia Costoulas | 7-5 6-2 | Ayla Aksu | Match data | Jul 19, 2026 | Q2 | Prague Open | WTA 250 | Hard |
1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 including documented historical predecessor categories | Finals | 500 including documented historical predecessor categories | 250 including documented historical predecessor categories | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ayla Aksu | #201 | #198 | 388 | 1,514 | 2 | 4 | 33.3% | 0 | 0 | 0 | 0 | 0 | 0 |
| Sofia Costoulas | #155 | #134 | 580 | 1,617 | 2 | 4 | 33.3% | 0 | 0 | 0 | 0 | 0 | 0 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.
| Age | Ayla Aksu | Sofia Costoulas | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Yr | Hard | Clay | |||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |||
| 19 | 2016 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — |
| 20 | 2017 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — |
| 21 | 2018 | — | — | — | — | 0 | 1 | 1 | 0.0% | 2026 | 2 | 3 | 5 | 40.0% | 0 | 1 | 1 | 0.0% |
| 29 | 2026 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1 | 1 | 2 | 50.0% | 1 | 3 | 4 | 25.0% | — | 2 | 3 | 5 | 40.0% | 0 | 1 | 1 | 0.0% |
Seasons are aligned by the age each player spent most of that calendar year. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.
| Age | Ayla Aksu | Sofia Costoulas | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | |
| 19 | 2016 | 1/1 | 1.0 | 3.0 | 48.3% | 69.0% | 41.9% | 57.1% | 33.3% | 55.0% | 31.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| 20 | 2017 | 2/2 | 1.5 | 3.5 | 55.6% | 65.9% | 37.2% | 74.6% | 68.8% | 53.2% | 44.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 21 | 2018 | 1/1 | 0.0 | 4.0 | 46.7% | 42.9% | 34.4% | 53.3% | 42.9% | 38.3% | 44.7% | 2026 | 6/6 | 2.5 | 3.5 | 53.2% | 64.8% | 44.3% | 58.0% | 40.5% | 55.9% | 44.2% |
| 29 | 2026 | 2/2 | 2.5 | 2.5 | 61.0% | 60.5% | 54.3% | 45.7% | 61.1% | 58.3% | 36.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 6/6 | 1.5 | 3.2 | 54.7% | 60.8% | 43.2% | 58.5% | 56.0% | 52.7% | 39.7% | — | 6/6 | 2.5 | 3.5 | 53.2% | 64.8% | 44.3% | 58.0% | 40.5% | 55.9% | 44.2% |
Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.
| Age | Ayla Aksu | Sofia Costoulas | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | |
| 19 | 2016 | 1483 | 97.6 | +0.40 | -1.93 | 0.690 | 43.2% | — | — | — | 0.0% | -2.50 | — | — | — | +0.14 | 2024 | 1481 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2017 | 1487 | 100.0 | -0.23 | -0.45 | 0.954 | 49.3% | — | — | — | 50.0% | -0.25 | — | — | — | +0.23 | 2025 | 1523 | 97.0 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2018 | 1461 | 90.8 | -3.60 | -1.17 | 0.725 | 41.1% | — | — | — | 0.0% | -4.00 | — | — | — | +0.08 | 2026 | 1557 | 114.0 | -0.91 | +0.22 | 1.002 | 49.9% | +42 | — | — | 40.0% | -0.20 | 1–2 (33%) | 0–1 | — | +0.65 |
| 25 | 2022 | 1456 | 95.4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2024 | 1426 | 96.2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2025 | 1460 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2026 | 1499 | 106.5 | +0.67 | -1.77 | 0.879 | 47.4% | — | — | — | 40.0% | -1.20 | 1–0 | — | — | +0.02 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1515 | 96.2 | -0.39 | -1.26 | 0.840 | 46.3% | — | — | — | 30.8% | -1.54 | 1–0 | — | — | +7.83 | — | 1618 | 109.1 | -0.91 | +0.22 | 1.002 | 49.9% | +42 | — | — | 40.0% | -0.20 | 1–2 (33%) | 0–1 | — | +10.83 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Daria Snigur | 0 | 1 | 1 | Jul 22, 2026 | H2H |
| Sofia Costoulas | 1 | 0 | 1 | Jul 20, 2026 | H2H |
| Pauline Parmentier | 0 | 1 | 1 | Apr 26, 2018 | H2H |
| Basak Eraydin | 0 | 1 | 1 | Apr 28, 2017 | H2H |
| Elizaveta Kulichkova | 1 | 0 | 1 | Apr 27, 2017 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Ayla Aksu | 0 | 1 | 1 | Jul 20, 2026 | H2H |
| Tereza Valentova | 0 | 1 | 1 | Jul 14, 2026 | H2H |
| Hanne Vandewinkel | 0 | 1 | 1 | Mar 31, 2026 | H2H |
| Iva Jovic | 0 | 1 | 1 | Jan 9, 2026 | H2H |
| Kaitlin Quevedo | 1 | 0 | 1 | Jan 7, 2026 | H2H |