H2H data updated: 2026-09-12 00:00 UTC
Sonja Pachta holds a 1–0 lead over Sandra Walsham in their WTA head-to-head. Across 1 main-draw meeting, Sonja Pachta leads 1–0 on clay. Most recently, Sonja Pachta won the 1970 Opatija quarterfinal 6-1 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 |
|---|---|---|---|---|---|---|---|---|
| Sonja Pachta | 6-1 6-4 | Sandra Walsham | Match data | Sep 26, 1970* | QF | Opatija | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sandra Walsham | — | — | — | 1,568 | 19 | 21 | 47.5% | 0 | 0 | 0 | 0 | 2 | 2 |
| Sonja Pachta | — | — | — | 1,592 | 17 | 20 | 45.9% | 0 | 0 | 0 | 0 | 2 | 2 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Sandra Walsham | Sonja Pachta | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 2–2 | 50.0% | — | 1,496 | 0 | 0 | 1968 | 1–1 | 50.0% | — | 1,495 | 0 | 0 |
| 1969 | 1–4 | 20.0% | — | 1,481 | 0 | 0 | 1969 | 2–3 | 40.0% | — | 1,483 | 0 | 0 |
| 1970 | 13–10 | 56.5% | — | 1,556 | 0 | 2 | 1970 | 3–1 | 75.0% | — | 1,539 | 0 | 1 |
| 1971 | 1–2 | 33.3% | — | 1,561 | 0 | 2 | 1971 | 0–1 | 0.0% | — | 1,521 | 0 | 1 |
| 1972 | 1–2 | 33.3% | — | 1,539 | 0 | 2 | 1972 | 11–8 | 57.9% | — | 1,592 | 0 | 2 |
| 1973 | 1–1 | 50.0% | — | 1,542 | 0 | 2 | 1973 | 0–3 | 0.0% | — | 1,553 | 0 | 2 |
| — | — | — | — | — | — | — | 1975 | 0–2 | 0.0% | — | 1,519 | 0 | 2 |
| — | — | — | — | — | — | — | 1976 | 0–1 | 0.0% | — | 1,509 | 0 | 2 |
Rows are aligned in career order because complete birth data is unavailable. 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.
| Sandra Walsham | Sonja Pachta | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | ||
| 1968 | — | — | — | — | 2 | 2 | 4 | 50.0% | — | — | — | — | 1968 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 1969 | — | — | — | — | 1 | 1 | 2 | 50.0% | 0 | 2 | 2 | 0.0% | 1969 | — | — | — | — | 2 | 3 | 5 | 40.0% | — | — | — | — |
| 1970 | 0 | 2 | 2 | 0.0% | 8 | 5 | 13 | 61.5% | 5 | 3 | 8 | 62.5% | 1970 | — | — | — | — | 3 | 1 | 4 | 75.0% | — | — | — | — |
| 1971 | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 33.3% | 1971 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1972 | — | — | — | — | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | 1972 | 2 | 1 | 3 | 66.7% | 8 | 6 | 14 | 57.1% | 1 | 1 | 2 | 50.0% |
| 1973 | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% | 1973 | — | — | — | — | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% |
| — | — | — | — | — | — | — | — | — | — | — | — | — | 1975 | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | 1976 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| Career | 0 | 2 | 2 | 0.0% | 12 | 9 | 21 | 57.1% | 7 | 9 | 16 | 43.8% | Career | 2 | 1 | 3 | 66.7% | 14 | 16 | 30 | 46.7% | 1 | 3 | 4 | 25.0% |
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.
| Sandra Walsham | Sonja Pachta | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1968 | 1496 | 96.6 | — | — | — | — | — | +5 | — | 44.4% | -0.67 | 1–0 | — | — | +0.36 | 1968 | 1496 | 99.8 | — | — | — | — | — | — | — | 50.0% | +0.50 | — | — | — | +0.25 |
| 1969 | 1481 | 102.9 | — | — | — | — | — | — | — | 20.0% | -1.80 | — | — | — | -0.20 | 1969 | 1483 | 97.5 | — | — | — | — | — | -15 | — | 30.0% | -1.80 | 1–1 | — | — | +0.02 |
| 1970 | 1557 | 109.4 | — | — | — | — | — | +3 | +44 | 52.9% | +0.37 | 4–1 (80%) | — | — | +4.43 | 1970 | 1540 | 108.5 | — | — | — | — | — | +12 | — | 85.7% | +2.43 | 1–0 | — | — | +0.58 |
| 1971 | 1561 | 109.9 | — | — | — | — | — | — | +42 | 33.3% | -0.83 | — | — | — | -0.36 | 1971 | 1521 | 97.9 | — | — | — | — | — | — | — | 33.3% | -2.00 | 0–1 | — | — | +0.28 |
| 1972 | 1539 | 95.1 | — | — | — | — | — | — | — | 33.3% | -1.83 | — | 2–1 (67%) | — | +0.63 | 1972 | 1593 | 114.9 | — | — | — | — | -2 | -13 | — | 51.3% | -0.05 | 5–2 (71%) | 1–0 | — | +1.59 |
| 1973 | 1543 | 101.7 | — | — | — | — | — | — | — | 50.0% | +0.75 | — | 0–1 | — | -0.08 | 1973 | 1553 | 94.5 | — | — | — | — | — | — | — | 0.0% | -3.67 | — | — | — | +0.13 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1975 | 1520 | 91.8 | — | — | — | — | — | — | — | 0.0% | -3.75 | — | — | — | +0.46 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1976 | 1509 | 90.1 | — | — | — | — | — | — | — | 0.0% | -6.00 | — | — | — | 0.00 |
| Career | 1568 | 106.5 | — | — | — | — | — | +3 | +43 | 45.3% | -0.21 | 5–1 (83%) | 2–2 (50%) | 105.3 | +11.95 | Career | 1593 | 103.1 | — | — | — | — | -2 | -9 | — | 42.7% | -0.75 | 7–4 (64%) | 1–0 | — | +10.34 |
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 |
|---|---|---|---|---|---|
| Evonne Goolagong | 0 | 4 | 4 | Jan 14, 1971 | H2H |
| Dianne Fromholtz | 0 | 2 | 2 | Dec 9, 1972 | H2H |
| Maria Eugenia Guzman | 1 | 1 | 2 | Jul 18, 1970 | H2H |
| Marilyn Greenwood | 2 | 0 | 2 | May 16, 1970 | H2H |
| Janice Townsend | 1 | 1 | 2 | May 16, 1970 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Erzsebet Szell | 0 | 2 | 2 | Jul 20, 1973 | H2H |
| Julie Anthony | 1 | 1 | 2 | Aug 6, 1972 | H2H |
| Elly Appel | 0 | 1 | 1 | Jul 15, 1976 | H2H |
| Heidi Eisterlehner | 0 | 1 | 1 | Aug 30, 1975 | H2H |
| Beatrix Klein | 0 | 1 | 1 | Jul 17, 1975 | H2H |