H2H data updated: 2026-09-12 00:00 UTC
Allegra Pero holds a 1–0 lead over Darlene Williamson in their WTA head-to-head. Across 1 main-draw meeting, Allegra Pero leads 1–0 on hard courts. Most recently, Allegra Pero won the 1980 Atlantic City round of 32 5-7 6-3 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 |
|---|---|---|---|---|---|---|---|---|
| Allegra Pero | 5-7 6-3 6-4 | Darlene Williamson | Match data | Jul 17, 1980* | R32 | Atlantic City | 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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Darlene Williamson | — | — | — | 1,515 | 2 | 9 | 18.2% | 0 | 0 | 0 | 0 | 0 | 0 |
| Allegra Pero | — | — | — | 1,507 | 4 | 6 | 40.0% | 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.
| Darlene Williamson | Allegra Pero | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1980 | 2–7 | 22.2% | — | 1,431 | 0 | 0 | 1980 | 4–6 | 40.0% | — | 1,476 | 0 | 0 |
| 1982 | 0–2 | 0.0% | — | 1,405 | 0 | 0 | — | — | — | — | — | — | — |
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.
| Darlene Williamson | Allegra Pero | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Yr | Hard | Clay | ||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | ||
| 1980 | 0 | 3 | 3 | 0.0% | — | — | — | — | 1980 | 4 | 3 | 7 | 57.1% | — | — | — | — |
| 1982 | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — |
| Career | 0 | 3 | 3 | 0.0% | 0 | 2 | 2 | 0.0% | Career | 4 | 3 | 7 | 57.1% | — | — | — | — |
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.
| Darlene Williamson | Allegra Pero | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1980 | 1431 | 88.7 | — | — | — | — | +73 | — | — | 28.6% | -1.76 | 1–2 (33%) | — | — | +0.54 | 1980 | 1476 | 98.3 | — | — | — | — | +108 | — | — | 42.3% | -0.62 | 3–3 (50%) | 1–1 | — | +1.67 |
| 1982 | 1406 | 90.2 | — | — | — | — | — | — | — | 0.0% | -4.25 | — | — | — | +0.29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1515 | 89.3 | — | — | — | — | +73 | — | — | 24.0% | -2.16 | 1–2 (33%) | — | — | +7.55 | Career | 1507 | 98.9 | — | — | — | — | +108 | — | — | 42.3% | -0.62 | 3–3 (50%) | 1–1 | — | +16.70 |
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 |
|---|---|---|---|---|---|
| Vicki Beggs | 0 | 2 | 2 | Jul 24, 1980 | H2H |
| Glaucia Langela | 0 | 1 | 1 | Jul 22, 1982 | H2H |
| Myriam Schropp | 0 | 1 | 1 | May 20, 1982 | H2H |
| Allegra Pero | 0 | 1 | 1 | Jul 17, 1980 | H2H |
| Kathleen Cummings | 0 | 1 | 1 | Jul 3, 1980 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Karen Huebner | 0 | 1 | 1 | Aug 17, 1980 | H2H |
| Lucy Gordon | 0 | 1 | 1 | Jul 26, 1980 | H2H |
| Susan Gibson | 1 | 0 | 1 | Jul 25, 1980 | H2H |
| Bunny Smith | 1 | 0 | 1 | Jul 24, 1980 | H2H |
| Renee Richards | 0 | 1 | 1 | Jul 19, 1980 | H2H |