Helen Amos
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Virginia Wade | 0 | 4 | 4 | Jan 8, 1971 | H2H |
| Ana Maria Arias | 3 | 0 | 3 | Jun 28, 1972 | H2H |
| Rosie Casals | 0 | 3 | 3 | Jun 16, 1971 | H2H |
| Julie Heldman | 0 | 3 | 3 | Jun 12, 1971 | H2H |
| Michelle Rodriguez | 1 | 1 | 2 | Jun 12, 1971 | H2H |
H2H data updated: 2026-09-13 00:00 UTC
Helen Amos holds a 1–0 lead over Vicki Lancaster Kerr in their WTA head-to-head. Across 1 main-draw meeting, Helen Amos leads 1–0 on grass. Most recently, Helen Amos won the 1968 Adelaide International round of 16 6-2 6-1.
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 |
|---|---|---|---|---|---|---|---|---|
| Helen Amos | 6-2 6-1 | Vicki Lancaster Kerr | Match data | Nov 27, 1968* | R16 | Adelaide International | WTA 500 | Grass |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Helen Amos | — | — | — | 1,588 | 42 | 60 | 41.2% | 0 | 0 | 0 | 0 | 0 | 0 |
| Vicki Lancaster Kerr | — | — | — | 1,642 | 39 | 49 | 44.3% | 0 | 0 | 0 | 0 | 3 | 3 |
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 | Helen Amos | Vicki Lancaster Kerr | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 17 | — | — | — | — | — | — | — | 1968 | 1–5 | 16.7% | — | 1,455 | 0 | 0 |
| 18 | — | — | — | — | — | — | — | 1969 | 2–3 | 40.0% | — | 1,477 | 0 | 0 |
| 19 | — | — | — | — | — | — | — | 1970 | 1–4 | 20.0% | — | 1,466 | 0 | 0 |
| 20 | 1968 | 11–19 | 36.7% | — | 1,484 | 0 | 0 | 1971 | 11–13 | 45.8% | — | 1,516 | 0 | 0 |
| 21 | 1969 | 10–14 | 41.7% | — | 1,509 | 0 | 0 | 1972 | 12–9 | 57.1% | — | 1,581 | 0 | 2 |
| 22 | 1970 | 8–13 | 38.1% | — | 1,534 | 0 | 0 | 1973 | 2–1 | 66.7% | — | 1,602 | 0 | 2 |
| 23 | 1971 | 9–10 | 47.4% | — | 1,541 | 0 | 0 | 1974 | 3–4 | 42.9% | — | 1,613 | 0 | 3 |
| 24 | 1972 | 2–3 | 40.0% | — | 1,548 | 0 | 0 | 1975 | 1–2 | 33.3% | — | 1,607 | 0 | 3 |
| 25 | 1973 | 2–1 | 66.7% | — | 1,570 | 0 | 0 | 1976 | 3–6 | 33.3% | — | 1,569 | 0 | 3 |
| 26 | — | — | — | — | — | — | — | 1977 | 0–1 | 0.0% | — | 1,554 | 0 | 3 |
| 29 | — | — | — | — | — | — | — | 1980 | 3–1 | 75.0% | — | 1,582 | 0 | 3 |
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 | Helen Amos | Vicki Lancaster Kerr | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1968 | — | — | — | — | — | — | — | — | 1 | 5 | 6 | 16.7% | — | — | — | — |
| 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1969 | — | — | — | — | 0 | 1 | 1 | 0.0% | 2 | 2 | 4 | 50.0% | — | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1970 | — | — | — | — | — | — | — | — | 1 | 4 | 5 | 20.0% | — | — | — | — |
| 20 | 1968 | — | — | — | — | 7 | 14 | 21 | 33.3% | 4 | 5 | 9 | 44.4% | — | — | — | — | 1971 | — | — | — | — | 6 | 4 | 10 | 60.0% | 2 | 7 | 9 | 22.2% | — | — | — | — |
| 21 | 1969 | 1 | 4 | 5 | 20.0% | 4 | 4 | 8 | 50.0% | 5 | 6 | 11 | 45.5% | — | — | — | — | 1972 | — | — | — | — | 10 | 5 | 15 | 66.7% | 2 | 4 | 6 | 33.3% | — | — | — | — |
| 22 | 1970 | 3 | 3 | 6 | 50.0% | 0 | 5 | 5 | 0.0% | 4 | 4 | 8 | 50.0% | — | — | — | — | 1973 | — | — | — | — | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — |
| 23 | 1971 | 5 | 2 | 7 | 71.4% | 1 | 4 | 5 | 20.0% | 3 | 3 | 6 | 50.0% | 0 | 1 | 1 | 0.0% | 1974 | — | — | — | — | 1 | 0 | 1 | 100.0% | 2 | 4 | 6 | 33.3% | — | — | — | — |
| 24 | 1972 | — | — | — | — | 1 | 2 | 3 | 33.3% | 1 | 1 | 2 | 50.0% | — | — | — | — | 1975 | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — |
| 25 | 1973 | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 3 | 66.7% | 1976 | 0 | 1 | 1 | 0.0% | 2 | 3 | 5 | 40.0% | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% |
| 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1977 | — | — | — | — | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1980 | — | — | — | — | — | — | — | — | 3 | 1 | 4 | 75.0% | — | — | — | — |
| Career | — | 9 | 9 | 18 | 50.0% | 13 | 29 | 42 | 31.0% | 17 | 19 | 36 | 47.2% | 2 | 2 | 4 | 50.0% | — | 0 | 1 | 1 | 0.0% | 19 | 13 | 32 | 59.4% | 16 | 31 | 47 | 34.0% | 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 | Helen Amos | Vicki Lancaster Kerr | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1968 | 1455 | 94.0 | — | — | — | — | — | — | -8 | 18.2% | -1.82 | 1–0 | — | — | +0.12 |
| 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1969 | 1478 | 102.6 | — | — | — | — | — | — | +24 | 36.4% | -1.55 | 1–0 | — | — | +0.04 |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1970 | 1467 | 105.4 | — | — | — | — | — | — | +13 | 20.0% | -2.00 | — | — | — | +0.08 |
| 20 | 1968 | 1484 | 98.3 | — | — | — | — | — | -16 | +20 | 37.9% | -0.95 | 4–2 (67%) | — | — | -0.11 | 1971 | 1517 | 103.6 | — | — | — | — | — | +20 | -53 | 46.2% | -0.50 | 4–2 (67%) | — | — | +1.19 |
| 21 | 1969 | 1510 | 110.1 | — | — | — | — | -30 | -6 | +22 | 46.2% | -0.46 | 2–4 (33%) | — | — | +1.11 | 1972 | 1582 | 115.5 | — | — | — | — | — | +56 | -127 | 53.3% | +0.11 | 3–2 (60%) | — | — | +1.14 |
| 22 | 1970 | 1534 | 111.0 | — | — | — | — | +1 | -72 | +23 | 37.8% | -0.89 | 2–1 (67%) | — | — | +0.48 | 1973 | 1602 | 106.0 | — | — | — | — | — | — | -106 | 57.1% | +0.71 | 1–0 | 0–2 | — | +0.26 |
| 23 | 1971 | 1542 | 107.1 | — | — | — | — | +69 | -120 | +33 | 46.5% | -0.09 | 3–2 (60%) | — | — | +3.20 | 1974 | 1614 | 113.9 | — | — | — | — | — | — | -105 | 44.4% | -0.11 | 2–2 (50%) | 1–1 | — | -0.35 |
| 24 | 1972 | 1549 | 108.6 | — | — | — | — | — | -109 | — | 40.0% | -0.80 | — | — | — | +0.35 | 1975 | 1607 | 105.7 | — | — | — | — | — | — | -96 | 37.5% | -0.37 | 1–1 | — | — | +0.22 |
| 25 | 1973 | 1571 | 103.3 | — | — | — | — | +69 | — | — | 57.1% | 0.00 | 1–0 | — | — | +0.91 | 1976 | 1570 | 101.3 | — | — | — | — | +7 | +73 | — | 33.3% | -1.17 | — | 1–0 | — | +0.70 |
| 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1977 | 1554 | 95.5 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | +0.27 |
| 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1980 | 1583 | 100.7 | — | — | — | — | — | — | -30 | 60.0% | -0.20 | 2–0 | 1–0 | — | +0.69 |
| Career | — | 1588 | 108.5 | — | — | — | — | +28 | -40 | +24 | 42.3% | -0.61 | 12–9 (57%) | — | — | +6.00 | — | 1643 | 109.4 | — | — | — | — | +7 | +47 | -54 | 43.2% | -0.57 | 15–7 (68%) | 3–3 (50%) | 109.2 | +5.07 |
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 |
|---|---|---|---|---|---|
| Virginia Wade | 0 | 4 | 4 | Jan 8, 1971 | H2H |
| Ana Maria Arias | 3 | 0 | 3 | Jun 28, 1972 | H2H |
| Rosie Casals | 0 | 3 | 3 | Jun 16, 1971 | H2H |
| Julie Heldman | 0 | 3 | 3 | Jun 12, 1971 | H2H |
| Michelle Rodriguez | 1 | 1 | 2 | Jun 12, 1971 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Karen Krantzcke | 0 | 4 | 4 | Dec 26, 1973 | H2H |
| Sue Barker | 1 | 2 | 3 | Jan 4, 1975 | H2H |
| Helen Gourlay | 0 | 3 | 3 | Jul 21, 1972 | H2H |
| Janine Whyte | 1 | 2 | 3 | Apr 11, 1972 | H2H |
| Cynthia Doerner | 2 | 0 | 2 | Nov 22, 1974 | H2H |