Roberta Alison
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Marita Redondo | 0 | 1 | 1 | Jul 8, 1972 | H2H |
| Janice Metcalf | 0 | 1 | 1 | Jul 2, 1971 | H2H |
| Judy Alvarez | 0 | 1 | 1 | Jun 21, 1971 | H2H |
| Ellen Hayes | 1 | 0 | 1 | Jun 20, 1971 | H2H |
| Linda Tuero | 0 | 1 | 1 | Jul 1, 1970 | H2H |
H2H data updated: 2026-09-12 00:00 UTC
Roberta Alison vs Ellen Hayes H2H: 1-0
Roberta Alison holds a 1–0 lead over Ellen Hayes in their WTA head-to-head. Across 1 main-draw meeting, Roberta Alison leads 1–0 on clay. Most recently, Roberta Alison won the 1971 Columbus round of 16 6-1 6-2.
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 |
|---|---|---|---|---|---|---|---|---|
| Roberta Alison | 6-1 6-2 | Ellen Hayes | Match data | Jun 20, 1971* | R16 | Columbus | 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.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Roberta Alison | — | — | — | 1,543 | 3 | 4 | 42.9% | 0 | 0 | 0 | 0 | 0 | 0 |
| Ellen Hayes | — | — | — | 1,500 | 0 | 1 | 0.0% | 0 | 0 | 0 | 0 | 0 | 0 |
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.
| Roberta Alison | Ellen Hayes | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1970 | 2–1 | 66.7% | — | 1,528 | 0 | 0 | 1971 | 0–1 | 0.0% | — | 1,485 | 0 | 0 |
| 1971 | 1–2 | 33.3% | — | 1,515 | 0 | 0 | — | — | — | — | — | — | — |
| 1972 | 0–1 | 0.0% | — | 1,506 | 0 | 0 | — | — | — | — | — | — | — |
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.
| Roberta Alison | Ellen Hayes | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Yr | Clay | Yr | Clay | ||||||
| W | L | M | Win % | W | L | M | Win % | ||
| 1971 | 1 | 2 | 3 | 33.3% | 1971 | 0 | 1 | 1 | 0.0% |
| Career | 1 | 2 | 3 | 33.3% | Career | 0 | 1 | 1 | 0.0% |
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.
| Roberta Alison | Ellen Hayes | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1970 | 1528 | 111.3 | — | — | — | — | — | — | — | 66.7% | +1.17 | — | — | — | +0.03 | 1971 | 1485 | 94.6 | — | — | — | — | — | — | — | 0.0% | -4.50 | — | — | — | +0.19 |
| 1971 | 1515 | 100.8 | — | — | — | — | — | -18 | — | 42.9% | -0.86 | 0–1 | — | — | +0.48 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1972 | 1506 | 104.1 | — | — | — | — | — | — | — | 33.3% | -0.67 | 0–1 | — | — | -0.23 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1543 | 107.5 | — | — | — | — | — | -18 | — | 50.0% | -0.06 | 0–2 | — | — | +4.00 | Career | 1500 | 97.2 | — | — | — | — | — | — | — | 0.0% | -4.50 | — | — | — | +19.00 |
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.
Ellen Hayes
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Roberta Alison | 0 | 1 | 1 | Jun 20, 1971 | H2H |