H2H data updated: 2026-09-14 00:00 UTC
Jana Fett holds a 1–0 lead over Valentini Grammatikopoulou in their WTA head-to-head. Across 1 main-draw meeting, Jana Fett leads 1–0 on hard courts. Most recently, Jana Fett won the 2018 Monterrey Open first round 6-0 6-2.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Jana Fett | 6-1 6-1 | Valentini Grammatikopoulou | Match data | Jan 26, 2019 | Q1 | St. Petersburg | Premier → modern equivalent WTA 500 | Hard |
| Jana Fett | 6-0 6-2 | Valentini Grammatikopoulou | Match data | Apr 5, 2018* | R32 | Monterrey Open | International → modern equivalent WTA 250 | Hard |
1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. Estimated match date where the exact historical date is unavailable. 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jana Fett | #415 | #97 | 685 | 1,669 | 25 | 39 | 39.1% | 0 | 0 | 0 | 0 | 0 | 0 |
| Valentini Grammatikopoulou | #470 | #143 | 443 | 1,614 | 2 | 15 | 11.8% | 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.
| Age | Jana Fett | Valentini Grammatikopoulou | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 20 | 2017 | 8–7 | 53.3% | #103 | 1,644 | 0 | 0 | 2017 | 0–2 | 0.0% | #209 | 1,531 | 0 | 0 |
| 21 | 2018 | 4–9 | 30.8% | #208 | 1,524 | 0 | 0 | 2018 | 1–6 | 14.3% | #171 | 1,582 | 0 | 0 |
| 22 | 2019 | 2–2 | 50.0% | #243 | 1,483 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | 2020 | 1–1 | 50.0% | #209 | 1,523 | 0 | 0 | — | — | — | — | — | — | — |
| 24 | 2021 | 1–3 | 25.0% | #237 | 1,520 | 0 | 0 | 2021 | 1–3 | 25.0% | #183 | 1,525 | 0 | 0 |
| 25 | 2022 | 0–4 | 0.0% | #242 | 1,567 | 0 | 0 | 2022 | 0–1 | 0.0% | #198 | 1,556 | 0 | 0 |
| 26 | 2023 | 1–3 | 25.0% | #184 | 1,641 | 0 | 0 | 2023 | 0–2 | 0.0% | #220 | 1,468 | 0 | 0 |
| 27 | 2024 | 6–7 | 46.2% | #136 | 1,576 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 2025 | 2–3 | 40.0% | #189 | 1,577 | 0 | 0 | — | — | — | — | — | — | — |
| 29 | — | — | — | — | — | — | — | 2026 | 0–1 | 0.0% | #470 | 1,416 | 0 | 0 |
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 | Jana Fett | Valentini Grammatikopoulou | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Yr | Hard | Clay | Grass | |||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |||
| 20 | 2017 | 7 | 6 | 13 | 53.8% | — | — | — | — | 1 | 1 | 2 | 50.0% | 2017 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| 21 | 2018 | 2 | 6 | 8 | 25.0% | 2 | 1 | 3 | 66.7% | 0 | 2 | 2 | 0.0% | 2018 | 0 | 3 | 3 | 0.0% | 1 | 2 | 3 | 33.3% | 0 | 1 | 1 | 0.0% |
| 22 | 2019 | 1 | 1 | 2 | 50.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2020 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 2021 | 1 | 2 | 3 | 33.3% | 0 | 1 | 1 | 0.0% | — | — | — | — | 2021 | 1 | 2 | 3 | 33.3% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 25 | 2022 | 0 | 2 | 2 | 0.0% | — | — | — | — | 0 | 2 | 2 | 0.0% | 2022 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 26 | 2023 | 0 | 2 | 2 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | 2023 | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — |
| 27 | 2024 | 4 | 5 | 9 | 44.4% | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2025 | 0 | 1 | 1 | 0.0% | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2026 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| Career | — | 16 | 26 | 42 | 38.1% | 8 | 8 | 16 | 50.0% | 1 | 5 | 6 | 16.7% | — | 1 | 8 | 9 | 11.1% | 1 | 6 | 7 | 14.3% | 0 | 1 | 1 | 0.0% |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 61/65 of Jana Fett's and 16/17 of Valentini Grammatikopoulou's main draw matches. 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 | Jana Fett | Valentini Grammatikopoulou | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 20 | 2017 | 15/15 | 3.0 | 6.7 | 56.2% | 67.7% | 41.3% | 52.3% | 49.1% | 55.9% | 46.6% | 2017 | 1/2 | 0.0 | 7.0 | 63.2% | 62.7% | 33.3% | 56.3% | 33.3% | 51.9% | 41.5% |
| 21 | 2018 | 13/13 | 2.2 | 7.5 | 50.7% | 64.3% | 39.7% | 41.8% | 40.6% | 52.6% | 44.2% | 2018 | 7/7 | 0.3 | 4.1 | 70.5% | 49.1% | 37.6% | 40.6% | 46.1% | 45.5% | 41.3% |
| 22 | 2019 | 4/4 | 3.8 | 8.3 | 47.9% | 62.4% | 37.9% | 50.5% | 29.1% | 49.8% | 39.3% | — | —/— | — | — | — | — | — | — | — | — | — |
| 23 | 2020 | 2/2 | 5.5 | 7.5 | 50.8% | 78.5% | 44.6% | 73.1% | 36.7% | 61.9% | 45.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| 24 | 2021 | 4/4 | 0.8 | 3.5 | 58.7% | 56.2% | 43.0% | 47.4% | 82.9% | 50.8% | 40.1% | 2021 | 4/4 | 1.0 | 3.0 | 70.1% | 48.9% | 42.3% | 40.7% | 52.5% | 46.7% | 45.2% |
| 25 | 2022 | 4/4 | 4.5 | 8.3 | 52.2% | 60.7% | 34.6% | 41.9% | 41.3% | 48.2% | 33.0% | 2022 | 1/1 | 0.0 | 0.0 | 69.6% | 41.0% | 52.9% | 54.5% | 50.0% | 44.6% | 36.5% |
| 26 | 2023 | 4/4 | 2.0 | 8.5 | 62.0% | 57.6% | 36.6% | 55.4% | 37.5% | 49.5% | 41.7% | 2023 | 2/2 | 0.5 | 2.5 | 57.6% | 42.3% | 41.9% | 48.1% | 50.5% | 42.1% | 51.0% |
| 27 | 2024 | 12/13 | 1.6 | 6.7 | 59.7% | 58.5% | 44.2% | 52.9% | 54.8% | 52.2% | 46.1% | — | —/— | — | — | — | — | — | — | — | — | — |
| 28 | 2025 | 3/6 | 3.0 | 9.0 | 57.4% | 62.8% | 33.0% | 33.7% | 46.4% | 49.7% | 41.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 29 | — | —/— | — | — | — | — | — | — | — | — | — | 2026 | 1/1 | 0.0 | 7.0 | 54.0% | 53.7% | 40.0% | 40.0% | 45.5% | 47.4% | 48.2% |
| Career | — | 61/65 | 2.6 | 7.1 | 55.3% | 63.1% | 40.4% | 49.0% | 47.5% | 52.7% | 43.6% | — | 16/17 | 0.4 | 3.8 | 67.3% | 48.8% | 40.1% | 43.4% | 47.7% | 45.8% | 43.6% |
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 | Jana Fett | Valentini Grammatikopoulou | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 1490 | 96.7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2017 | 1644 | 119.9 | -0.29 | +1.28 | 1.056 | 51.4% | -57 | — | — | 55.6% | +0.44 | 2–4 (33%) | 0–1 | — | +0.17 | 2017 | 1532 | 107.1 | -2.34 | -1.66 | 0.863 | 46.7% | — | — | — | 20.0% | -1.20 | 0–1 | 0–2 | — | +0.04 |
| 21 | 2018 | 1524 | 106.0 | -1.70 | +0.11 | 0.933 | 48.7% | -32 | +98 | — | 36.7% | -0.43 | 1–3 (25%) | 0–2 | — | +0.18 | 2018 | 1582 | 104.4 | -5.30 | -1.51 | 0.758 | 43.4% | -17 | +21 | — | 23.5% | -2.29 | 1–2 (33%) | — | — | +0.22 |
| 22 | 2019 | 1484 | 97.2 | -1.86 | -1.66 | 0.782 | 44.8% | — | — | — | 40.0% | -1.10 | 2–0 | 1–1 | — | +0.23 | 2019 | 1525 | 93.4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2020 | 1523 | 109.7 | +1.65 | -0.17 | 1.192 | 53.3% | — | — | — | 33.3% | -1.67 | 0–1 | — | — | -0.06 | 2020 | 1555 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 2021 | 1521 | 103.6 | -1.74 | -0.56 | 0.815 | 45.8% | -16 | — | — | 25.0% | -2.00 | — | — | — | +0.03 | 2021 | 1526 | 105.4 | -2.51 | -1.06 | 0.847 | 46.1% | -6 | — | — | 33.3% | -1.33 | 0–1 | — | — | -0.11 |
| 25 | 2022 | 1567 | 100.5 | -0.90 | -0.58 | 0.636 | 41.1% | — | — | — | 11.1% | -3.33 | 0–1 | — | — | -0.13 | 2022 | 1556 | 91.4 | -0.23 | -0.22 | 0.660 | 40.7% | — | — | — | 0.0% | -4.50 | — | — | — | -0.02 |
| 26 | 2023 | 1642 | 103.3 | -1.83 | -0.89 | 0.826 | 46.1% | — | — | — | 33.3% | -1.11 | 0–1 | 0–1 | — | -0.22 | 2023 | 1468 | 99.6 | -0.46 | -0.63 | 0.881 | 46.7% | — | — | — | 0.0% | -2.25 | — | 0–1 | — | +0.20 |
| 27 | 2024 | 1577 | 112.4 | -1.98 | -0.69 | 0.964 | 49.1% | -4 | +7 | — | 43.3% | -0.57 | 3–3 (50%) | — | — | +0.38 | 2024 | 1435 | 98.5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2025 | 1578 | 117.0 | -1.91 | -0.62 | 0.826 | 46.0% | — | +81 | — | 45.5% | -0.36 | 0–1 | 2–1 (67%) | — | -0.06 | 2025 | 1423 | 98.5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2026 | 1416 | 103.0 | -3.14 | +0.34 | 0.916 | 47.8% | — | — | — | 0.0% | -1.50 | — | 0–1 | — | +0.04 |
| Career | — | 1670 | 112.1 | -1.28 | -0.08 | 0.921 | 48.3% | -33 | +59 | — | 41.1% | -0.62 | 8–14 (36%) | 3–6 (33%) | 94.1 | +0.83 | — | 1615 | 101.0 | -3.36 | -1.10 | 0.806 | 44.8% | -12 | +21 | — | 20.5% | -2.00 | 1–4 (20%) | 0–4 (0%) | 92.3 | +2.18 |
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 |
|---|---|---|---|---|---|
| Iga Swiatek | 0 | 2 | 2 | Apr 16, 2025 | H2H |
| Saisai Zheng | 1 | 1 | 2 | Oct 31, 2024 | H2H |
| Jessica Bouzas Maneiro | 1 | 1 | 2 | Oct 24, 2024 | H2H |
| Daria Kasatkina | 0 | 2 | 2 | Sep 28, 2024 | H2H |
| Rebecca Peterson | 0 | 2 | 2 | Oct 28, 2021 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Alycia Parks | 0 | 1 | 1 | Jul 13, 2026 | H2H |
| Dalila Jakupovic | 0 | 1 | 1 | Jul 27, 2023 | H2H |
| Tamara Korpatsch | 0 | 1 | 1 | Jul 20, 2023 | H2H |
| Daria Saville | 0 | 1 | 1 | May 24, 2022 | H2H |
| Elise Mertens | 0 | 1 | 1 | Sep 2, 2021 | H2H |