Helen Kayser
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Evonne Goolagong | 0 | 6 | 6 | Jan 1, 1974 | H2H |
| Marilyn Tesch | 0 | 2 | 2 | Jan 8, 1972 | H2H |
| Jackie Fayter | 0 | 2 | 2 | Jun 4, 1970 | H2H |
| Belinda Thompson | 0 | 1 | 1 | Dec 18, 1974 | H2H |
| Mona Guerrant | 1 | 0 | 1 | Jan 7, 1972 | H2H |
H2H data updated: 2026-09-13 00:00 UTC
Helen Kayser vs Laura Rossouw H2H: 0-1
Laura Rossouw holds a 1–0 lead over Helen Kayser in their WTA head-to-head. Across 1 main-draw meeting, Laura Rossouw leads 1–0 on hard courts. Most recently, Laura Rossouw won the 1970 South African Open round of 64 6-3 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.
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Laura Rossouw | 6-3 6-3 | Helen Kayser | Match data | Mar 24, 1970* | R64 | South African Open | WTA 250 | Hard |
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.
Career Comparison
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Helen Kayser | — | — | — | 1,500 | 8 | 18 | 30.8% | 0 | 0 | 0 | 0 | 0 | 0 |
| Laura Rossouw | — | — | — | 1,786 | 119 | 128 | 48.2% | 0 | 0 | 0 | 0 | 1 | 1 |
Career Progression by Age
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Helen Kayser | Laura Rossouw | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 0–1 | 0.0% | — | 1,484 | 0 | 0 | 1968 | 21–20 | 51.2% | — | 1,571 | 0 | 0 |
| 1969 | 0–1 | 0.0% | — | 1,473 | 0 | 0 | 1969 | 12–18 | 40.0% | — | 1,547 | 0 | 0 |
| 1970 | 5–11 | 31.2% | — | 1,446 | 0 | 0 | 1970 | 18–17 | 51.4% | — | 1,682 | 0 | 0 |
| 1971 | 1–1 | 50.0% | — | 1,464 | 0 | 0 | 1971 | 29–21 | 58.0% | — | 1,747 | 0 | 0 |
| 1972 | 2–2 | 50.0% | — | 1,482 | 0 | 0 | 1972 | 19–21 | 47.5% | — | 1,697 | 0 | 1 |
| 1974 | 0–2 | 0.0% | — | 1,467 | 0 | 0 | 1973 | 17–26 | 39.5% | — | 1,732 | 0 | 1 |
| — | — | — | — | — | — | — | 1974 | 3–5 | 37.5% | — | 1,690 | 0 | 1 |
Surface Results by Career Season
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.
| Helen Kayser | Laura Rossouw | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | ||
| 1968 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 1968 | 5 | 5 | 10 | 50.0% | 9 | 7 | 16 | 56.3% | 7 | 8 | 15 | 46.7% | — | — | — | — |
| 1969 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 1969 | 3 | 4 | 7 | 42.9% | 8 | 11 | 19 | 42.1% | 1 | 3 | 4 | 25.0% | — | — | — | — |
| 1970 | 0 | 1 | 1 | 0.0% | 2 | 4 | 6 | 33.3% | 3 | 6 | 9 | 33.3% | — | — | — | — | 1970 | 2 | 3 | 5 | 40.0% | 9 | 9 | 18 | 50.0% | 7 | 5 | 12 | 58.3% | — | — | — | — |
| 1971 | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | 1971 | 2 | 3 | 5 | 40.0% | 15 | 10 | 25 | 60.0% | 12 | 8 | 20 | 60.0% | — | — | — | — |
| 1972 | — | — | — | — | 0 | 1 | 1 | 0.0% | 2 | 1 | 3 | 66.7% | — | — | — | — | 1972 | 5 | 5 | 10 | 50.0% | 10 | 10 | 20 | 50.0% | 4 | 6 | 10 | 40.0% | — | — | — | — |
| 1974 | — | — | — | — | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — | 1973 | 9 | 8 | 17 | 52.9% | 5 | 10 | 15 | 33.3% | 2 | 4 | 6 | 33.3% | 1 | 4 | 5 | 20.0% |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | — | — | — | — | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| Career | 0 | 1 | 1 | 0.0% | 2 | 6 | 8 | 25.0% | 6 | 11 | 17 | 35.3% | — | — | — | — | Career | 26 | 28 | 54 | 48.1% | 56 | 58 | 114 | 49.1% | 33 | 35 | 68 | 48.5% | 1 | 4 | 5 | 20.0% |
Advanced Statistics Comparison by Career Season
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.
| Helen Kayser | Laura Rossouw | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 1485 | 96.5 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | +0.06 | 1968 | 1571 | 117.3 | — | — | — | — | -20 | +24 | -49 | 50.0% | +0.22 | 4–4 (50%) | — | — | -1.27 |
| 1969 | 1473 | 96.5 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | +0.13 | 1969 | 1547 | 110.8 | — | — | — | — | +23 | -2 | -36 | 40.0% | -0.57 | 3–4 (43%) | — | — | -0.95 |
| 1970 | 1447 | 98.9 | — | — | — | — | — | +26 | +43 | 29.4% | -1.09 | 2–2 (50%) | — | — | +1.33 | 1970 | 1682 | 127.3 | — | — | — | — | -124 | -39 | -56 | 47.6% | -0.21 | 9–5 (64%) | — | — | -1.78 |
| 1971 | 1464 | 103.3 | — | — | — | — | — | — | — | 0.0% | -5.00 | — | — | — | +0.23 | 1971 | 1747 | 133.0 | — | — | — | — | -202 | +50 | -66 | 53.6% | +0.33 | 10–6 (63%) | 3–1 (75%) | 108.8 | +1.97 |
| 1972 | 1483 | 109.5 | — | — | — | — | — | — | +58 | 44.4% | 0.00 | 1–0 | — | — | +0.01 | 1972 | 1697 | 127.1 | — | — | — | — | -79 | +35 | -44 | 45.9% | -0.20 | 4–3 (57%) | 1–1 | — | -0.60 |
| 1974 | 1467 | 108.7 | — | — | — | — | — | — | — | 0.0% | -3.25 | — | — | — | -0.18 | 1973 | 1732 | 135.0 | — | — | — | — | -16 | -33 | -75 | 38.2% | -1.07 | 11–5 (69%) | 6–5 (55%) | 109.2 | -5.17 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | 1690 | 119.0 | — | — | — | — | — | — | — | 41.2% | -0.59 | 0–1 | 1–0 | — | -1.06 |
| Career | 1500 | 103.9 | — | — | — | — | — | +26 | +47 | 26.4% | -1.42 | 3–2 (60%) | — | — | +6.08 | Career | 1786 | 130.3 | — | — | — | — | -48 | +10 | -56 | 46.1% | -0.24 | 41–28 (59%) | 11–7 (61%) | 113.2 | -3.63 |
Career Rivalries
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
Laura Rossouw
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Helga Masthoff | 1 | 7 | 8 | Jul 13, 1973 | H2H |
| Lesley Hunt | 4 | 3 | 7 | Sep 20, 1973 | H2H |
| Betty Stove | 0 | 7 | 7 | Aug 2, 1973 | H2H |
| Helen Gourlay | 4 | 1 | 5 | Oct 18, 1973 | H2H |
| Billie Jean King | 0 | 5 | 5 | Oct 6, 1973 | H2H |