Mary Sawyer
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Kaye Hallam | 2 | 1 | 3 | May 9, 1979 | H2H |
| Naoko Sato | 1 | 1 | 2 | Dec 24, 1979 | H2H |
| Betsy Nagelsen | 0 | 2 | 2 | Oct 20, 1979 | H2H |
| Chris Matison | 1 | 1 | 2 | Dec 25, 1978 | H2H |
| Dianne Evers | 1 | 1 | 2 | Dec 6, 1978 | H2H |
H2H data updated: 2026-09-13 00:00 UTC
Mary Sawyer vs Yu Li Chiao H2H: 0-1
Yu Li Chiao holds a 1–0 lead over Mary Sawyer in their WTA head-to-head. They have met 1 times in main draws. Most recently, Yu Li Chiao won the 1979 Tokyo Japan Open round of 16 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 |
|---|---|---|---|---|---|---|---|---|
| Yu Li Chiao | 6-3 6-3 | Mary Sawyer | Match data | Oct 26, 1979* | R16 | Tokyo Japan Open | WTA 250 | — |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mary Sawyer | — | — | — | 1,599 | 22 | 31 | 41.5% | 0 | 0 | 0 | 0 | 2 | 2 |
| Yu Li Chiao | — | — | — | 1,519 | 2 | 1 | 66.7% | 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.
| Mary Sawyer | Yu Li Chiao | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1973 | 0–1 | 0.0% | — | 1,495 | 0 | 0 | 1979 | 2–1 | 66.7% | — | 1,519 | 0 | 0 |
| 1974 | 0–1 | 0.0% | — | 1,488 | 0 | 0 | — | — | — | — | — | — | — |
| 1976 | 1–1 | 50.0% | — | 1,509 | 0 | 0 | — | — | — | — | — | — | — |
| 1977 | 9–10 | 47.4% | — | 1,568 | 0 | 2 | — | — | — | — | — | — | — |
| 1978 | 3–7 | 30.0% | — | 1,535 | 0 | 2 | — | — | — | — | — | — | — |
| 1979 | 8–9 | 47.1% | — | 1,557 | 0 | 2 | — | — | — | — | — | — | — |
| 1980 | 0–1 | 0.0% | — | 1,541 | 0 | 2 | — | — | — | — | — | — | — |
| 1981 | 1–1 | 50.0% | — | 1,537 | 0 | 2 | — | — | — | — | — | — | — |
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.
| Mary Sawyer | Yu Li Chiao | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1973 | 1495 | 98.1 | — | — | — | — | — | — | — | 0.0% | -5.00 | — | — | — | -0.15 | 1979 | 1519 | 107.7 | — | — | — | — | — | — | — | 71.4% | +1.14 | 0–1 | — | — | +0.16 |
| 1974 | 1489 | 101.3 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | -0.15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1976 | 1510 | 105.3 | — | — | — | — | — | — | — | 40.0% | -0.60 | 1–0 | — | — | -0.11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1977 | 1569 | 114.9 | — | — | — | — | +104 | — | -50 | 50.0% | -0.13 | 3–5 (38%) | 3–1 (75%) | 100.3 | +2.13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1978 | 1535 | 96.6 | — | — | — | — | — | — | +3 | 25.0% | -1.65 | 1–1 | — | — | +1.09 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1979 | 1557 | 110.1 | — | — | — | — | — | — | +76 | 50.0% | -0.13 | 2–4 (33%) | 2–3 (40%) | 97.6 | +2.76 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1980 | 1541 | 98.8 | — | — | — | — | — | — | — | 33.3% | 0.00 | 0–1 | 0–1 | — | +0.13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1981 | 1537 | 99.2 | — | — | — | — | — | — | — | 50.0% | -0.50 | — | — | — | +0.07 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1600 | 109.4 | — | — | — | — | +104 | — | -1 | 43.4% | -0.53 | 7–11 (39%) | 5–5 (50%) | 97.9 | +10.89 | Career | 1519 | 104.4 | — | — | — | — | — | — | — | 71.4% | +1.14 | 0–1 | — | — | +5.33 |
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.
Yu Li Chiao
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Mary Sawyer | 1 | 0 | 1 | Oct 26, 1979 | H2H |
| Naoko Sato | 0 | 1 | 1 | Oct 20, 1979 | H2H |
| Manako Tanguchi | 1 | 0 | 1 | Oct 19, 1979 | H2H |