H2H data updated: 2026-09-13 00:00 UTC
Compare the head-to-head record, career totals, season-by-season performance, and match log for Anna Zaja vs Isabella Pfennig.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Anna Zaja | 6-1 6-1 | Isabella Pfennig | Match data | Oct 7, 2017 | Q1 | Linz Open | International → modern equivalent WTA 250 | Clay |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Anna Zaja | #1,298 | #184 | 314 | 1,545 | 2 | 6 | 25.0% | 0 | 0 | 0 | 0 | 0 | 0 |
| Isabella Pfennig | — | — | — | 1,500 | 0 | 0 | — | 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.
| Anna Zaja | Isabella Pfennig | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 2017 | 1–3 | 25.0% | #218 | 1,508 | 0 | 0 | — | — | — | — | — | — | — |
| 2018 | 0–1 | 0.0% | #213 | 1,476 | 0 | 0 | — | — | — | — | — | — | — |
| 2021 | 1–2 | 33.3% | #325 | 1,479 | 0 | 0 | — | — | — | — | — | — | — |
Rows are aligned in career order because complete birth data is unavailable. 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.
| Anna Zaja | Isabella Pfennig | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 2017 | 1509 | 110.2 | -0.48 | -3.26 | 0.853 | 47.9% | — | +50 | — | 33.3% | -1.11 | 0–1 | — | — | +0.11 | 2017 | 1484 | 93.7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2018 | 1477 | 97.5 | -0.01 | -0.55 | 0.962 | 48.8% | — | — | — | 33.3% | -1.00 | 0–1 | — | — | -0.08 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2019 | 1453 | 98.6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2021 | 1480 | 94.2 | +0.50 | -3.51 | 0.672 | 42.2% | — | — | — | 28.6% | -2.43 | 1–0 | — | — | -0.03 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1546 | 101.0 | -0.05 | -3.02 | 0.788 | 45.9% | — | +50 | — | 31.6% | -1.58 | 1–2 (33%) | — | — | 0.00 | Career | 1500 | 96.7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
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 |
|---|---|---|---|---|---|
| Elena-Gabriela Ruse | 0 | 1 | 1 | Jul 9, 2021 | H2H |
| Viktoriya Tomova | 1 | 0 | 1 | Jul 8, 2021 | H2H |
| Ann Li | 0 | 1 | 1 | Jun 23, 2021 | H2H |
| Katerina Siniakova | 0 | 1 | 1 | May 24, 2018 | H2H |
| Ekaterina Alexandrova | 0 | 1 | 1 | Aug 30, 2017 | H2H |
No career rivalry data available.