H2H data updated: 2026-09-13 00:00 UTC
Petra Keppeler holds a 1–0 lead over Nathalie Phan Thanh in their WTA head-to-head. They have met 1 times in main draws. Most recently, Petra Keppeler won the 1985 Landskron round of 16 6-1 6-3.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Petra Keppeler | 6-1 6-3 | Nathalie Phan Thanh | Match data | Jul 18, 1985* | R16 | Landskron | WTA 250 | — |
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 |
| Nathalie Phan Thanh | — | — | — | 1,529 | 2 | 5 | 28.6% | 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 | Nathalie Phan Thanh | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | 1981 | 0–1 | 0.0% | — | 1,483 | 0 | 0 | 1983 | 1–1 | 50.0% | — | 1,517 | 0 | 0 |
| 17 | 1982 | 4–4 | 50.0% | — | 1,493 | 0 | 0 | 1984 | 0–1 | 0.0% | — | 1,514 | 0 | 0 |
| 18 | 1983 | 1–1 | 50.0% | — | 1,506 | 0 | 0 | 1985 | 1–2 | 33.3% | — | 1,499 | 0 | 0 |
| 19 | 1984 | 5–7 | 41.7% | — | 1,554 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 1985 | 10–9 | 52.6% | — | 1,608 | 0 | 0 | — | — | — | — | — | — | — |
| 21 | 1986 | 2–9 | 18.2% | — | 1,501 | 0 | 0 | 1988 | 0–1 | 0.0% | — | 1,487 | 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 | Nathalie Phan Thanh | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | — | — | — | — | — | — | — | — | 1983 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — |
| 17 | 1982 | — | — | — | — | 4 | 4 | 8 | 50.0% | — | — | — | — | — | — | — | — | 1984 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 18 | 1983 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 1985 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 19 | 1984 | 1 | 2 | 3 | 33.3% | 4 | 2 | 6 | 66.7% | 0 | 3 | 3 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 1985 | 1 | 2 | 3 | 33.3% | 6 | 4 | 10 | 60.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 1986 | 0 | 1 | 1 | 0.0% | 2 | 7 | 9 | 22.2% | — | — | — | — | 0 | 1 | 1 | 0.0% | 1988 | — | — | — | — | 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% | — | — | — | — | — | — | — | — |
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 | Nathalie Phan Thanh | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 16 | 1981 | 1484 | 98.3 | — | — | — | — | — | — | — | 33.3% | -1.67 | 0–1 | — | — | +0.24 | 1983 | 1517 | 109.2 | — | — | — | — | — | — | — | 60.0% | -0.20 | 0–1 | 1–0 | — | +0.09 |
| 17 | 1982 | 1493 | 103.8 | — | — | — | — | — | +20 | — | 52.6% | +0.21 | 1–2 (33%) | 1–2 (33%) | — | +1.20 | 1984 | 1514 | 103.9 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | -0.21 |
| 18 | 1983 | 1507 | 106.2 | — | — | — | — | — | — | — | 40.0% | -0.40 | 1–0 | 1–0 | — | +0.26 | 1985 | 1500 | 95.7 | — | — | — | — | — | — | — | 28.6% | -1.86 | 1–0 | 0–1 | — | +0.06 |
| 19 | 1984 | 1555 | 112.6 | — | — | — | — | +10 | +105 | +5 | 42.3% | -1.15 | 1–1 | 2–1 (67%) | — | -0.03 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 1985 | 1608 | 117.5 | — | — | — | — | -68 | +109 | — | 51.2% | -0.32 | 4–1 (80%) | 1–1 | — | +0.48 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 1986 | 1502 | 94.4 | — | — | — | — | — | +74 | — | 30.8% | -1.58 | 0–4 (0%) | 2–0 | — | +1.52 | 1988 | 1487 | 97.5 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | 0–1 | — | -0.02 |
| Career | — | 1651 | 110.8 | — | — | — | — | -35 | +77 | +5 | 44.2% | -0.73 | 7–9 (44%) | 7–4 (64%) | 100.1 | +7.06 | — | 1530 | 102.6 | — | — | — | — | — | — | — | 31.3% | -1.75 | 1–1 | 1–2 (33%) | — | -1.14 |
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 |
|---|---|---|---|---|---|
| Marcella Mesker | 0 | 1 | 1 | Jul 20, 1988 | H2H |
| Akiko Kijimuta | 0 | 1 | 1 | Jul 24, 1985 | H2H |
| Petra Keppeler | 0 | 1 | 1 | Jul 18, 1985 | H2H |
| Anna Karin Olsson | 1 | 0 | 1 | Jul 17, 1985 | H2H |
| Kathy Horvath | 0 | 1 | 1 | May 30, 1984 | H2H |