H2H data updated: 2026-09-12 00:00 UTC
Karin Stampfli holds a 1–0 lead over Petra Keppeler in their WTA head-to-head. Across 1 main-draw meeting, Karin Stampfli leads 1–0 on clay. Most recently, Karin Stampfli won the 1982 Neumunster quarterfinal 6-1 5-7 6-3.
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 |
|---|---|---|---|---|---|---|---|---|
| Karin Stampfli | 6-1 5-7 6-3 | Petra Keppeler | Match data | May 22, 1982* | QF | Neumunster | WTA 250 | Clay |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Petra Keppeler | — | — | — | 1,650 | 22 | 31 | 41.5% | 0 | 0 | 0 | 0 | 0 | 0 |
| Karin Stampfli | — | — | — | 1,577 | 20 | 26 | 43.5% | 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 | Petra Keppeler | Karin Stampfli | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 15 | — | — | — | — | — | — | — | 1979 | 0–1 | 0.0% | — | 1,487 | 0 | 0 |
| 16 | 1981 | 0–1 | 0.0% | — | 1,483 | 0 | 0 | 1980 | 5–4 | 55.6% | — | 1,522 | 0 | 0 |
| 17 | 1982 | 4–4 | 50.0% | — | 1,493 | 0 | 0 | 1981 | 6–8 | 42.9% | — | 1,508 | 0 | 0 |
| 18 | 1983 | 1–1 | 50.0% | — | 1,506 | 0 | 0 | 1982 | 6–4 | 60.0% | — | 1,548 | 0 | 0 |
| 19 | 1984 | 5–7 | 41.7% | — | 1,554 | 0 | 0 | 1983 | 0–1 | 0.0% | — | 1,531 | 0 | 0 |
| 20 | 1985 | 10–9 | 52.6% | — | 1,608 | 0 | 0 | 1984 | 2–4 | 33.3% | — | 1,513 | 0 | 0 |
| 21 | 1986 | 2–9 | 18.2% | — | 1,501 | 0 | 0 | 1985 | 1–3 | 25.0% | — | 1,494 | 0 | 0 |
| 22 | — | — | — | — | — | — | — | 1986 | 0–1 | 0.0% | — | 1,478 | 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 | Petra Keppeler | Karin Stampfli | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | Carpet | |||||||||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |||
| 16 | 1981 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 1980 | — | — | — | — | 3 | 1 | 4 | 75.0% | — | — | — | — | 1 | 2 | 3 | 33.3% |
| 17 | 1982 | — | — | — | — | 4 | 4 | 8 | 50.0% | — | — | — | — | — | — | — | — | 1981 | — | — | — | — | 0 | 3 | 3 | 0.0% | — | — | — | — | — | — | — | — |
| 18 | 1983 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 1982 | — | — | — | — | 6 | 3 | 9 | 66.7% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 19 | 1984 | 1 | 2 | 3 | 33.3% | 4 | 2 | 6 | 66.7% | 0 | 3 | 3 | 0.0% | — | — | — | — | 1983 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 20 | 1985 | 1 | 2 | 3 | 33.3% | 6 | 4 | 10 | 60.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 1984 | 1 | 3 | 4 | 25.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — |
| 21 | 1986 | 0 | 1 | 1 | 0.0% | 2 | 7 | 9 | 22.2% | — | — | — | — | 0 | 1 | 1 | 0.0% | 1985 | 0 | 1 | 1 | 0.0% | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1986 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| Career | — | 2 | 5 | 7 | 28.6% | 17 | 19 | 36 | 47.2% | 0 | 4 | 4 | 0.0% | 0 | 2 | 2 | 0.0% | — | 1 | 4 | 5 | 20.0% | 11 | 12 | 23 | 47.8% | 0 | 1 | 1 | 0.0% | 1 | 2 | 3 | 33.3% |
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 | Petra Keppeler | Karin Stampfli | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1979 | 1488 | 98.2 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | +0.04 |
| 16 | 1981 | 1484 | 98.3 | — | — | — | — | — | — | — | 33.3% | -1.67 | 0–1 | — | — | +0.24 | 1980 | 1522 | 110.0 | — | — | — | — | +18 | +67 | — | 57.9% | +0.53 | 0–1 | — | — | +1.24 |
| 17 | 1982 | 1493 | 103.8 | — | — | — | — | — | +20 | — | 52.6% | +0.21 | 1–2 (33%) | 1–2 (33%) | — | +1.20 | 1981 | 1509 | 112.5 | — | — | — | — | — | +47 | — | 50.0% | +0.27 | 1–3 (25%) | 0–3 (0%) | 94.8 | +0.20 |
| 18 | 1983 | 1507 | 106.2 | — | — | — | — | — | — | — | 40.0% | -0.40 | 1–0 | 1–0 | — | +0.26 | 1982 | 1549 | 108.7 | — | — | — | — | — | +51 | — | 60.0% | +0.64 | 2–3 (40%) | — | — | +1.42 |
| 19 | 1984 | 1555 | 112.6 | — | — | — | — | +10 | +105 | +5 | 42.3% | -1.15 | 1–1 | 2–1 (67%) | — | -0.03 | 1983 | 1532 | 97.1 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | +0.20 |
| 20 | 1985 | 1608 | 117.5 | — | — | — | — | -68 | +109 | — | 51.2% | -0.32 | 4–1 (80%) | 1–1 | — | +0.48 | 1984 | 1513 | 97.0 | — | — | — | — | +8 | — | — | 35.7% | -1.50 | 1–1 | — | — | +0.64 |
| 21 | 1986 | 1502 | 94.4 | — | — | — | — | — | +74 | — | 30.8% | -1.58 | 0–4 (0%) | 2–0 | — | +1.52 | 1985 | 1494 | 103.0 | — | — | — | — | — | +90 | — | 33.3% | -1.00 | 0–1 | — | — | +0.35 |
| 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1986 | 1479 | 94.6 | — | — | — | — | — | — | — | 0.0% | -4.50 | — | — | — | +0.19 |
| Career | — | 1651 | 110.8 | — | — | — | — | -35 | +77 | +5 | 44.2% | -0.73 | 7–9 (44%) | 7–4 (64%) | 100.1 | +7.06 | — | 1577 | 108.3 | — | — | — | — | +12 | +60 | — | 47.6% | -0.19 | 4–9 (31%) | 0–3 (0%) | 92.3 | +9.30 |
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 |
|---|---|---|---|---|---|
| Nathalie Herreman | 0 | 2 | 2 | May 14, 1986 | H2H |
| Virginia Ruzici | 0 | 2 | 2 | Nov 8, 1985 | H2H |
| Andrea Betzner | 2 | 0 | 2 | Aug 29, 1985 | H2H |
| Catarina Lindqvist Ryan | 0 | 2 | 2 | Jul 19, 1985 | H2H |
| Masako Yanagi | 2 | 0 | 2 | May 29, 1985 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Catrin Jexell | 1 | 1 | 2 | Feb 6, 1985 | H2H |
| Yvona Brzakova | 0 | 2 | 2 | May 11, 1983 | H2H |
| Gabriela Dinu | 1 | 1 | 2 | May 20, 1982 | H2H |
| Claudia Kohde Kilsch | 0 | 2 | 2 | Aug 31, 1980 | H2H |
| Hellas Ter Riet | 0 | 1 | 1 | Jul 10, 1986 | H2H |