Joyce Portman
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Susan Mascarin | 0 | 3 | 3 | Sep 25, 1981 | H2H |
| Virginia Ruzici | 0 | 3 | 3 | May 9, 1981 | H2H |
| Ivanna Madruga | 2 | 1 | 3 | May 9, 1981 | H2H |
| Lisa Doherty | 1 | 1 | 2 | Sep 4, 1981 | H2H |
| Joanne Russell | 0 | 2 | 2 | Apr 11, 1981 | H2H |
H2H data updated: 2026-09-12 00:00 UTC
Joyce Portman vs Jill Davis H2H: 1-0
Joyce Portman holds a 1–0 lead over Jill Davis in their WTA head-to-head. Across 1 main-draw meeting, Joyce Portman leads 1–0 on hard courts. Most recently, Joyce Portman won the 1981 US Open round of 128 6-2 7-5.
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 |
|---|---|---|---|---|---|---|---|---|
| Joyce Portman | 6-2 7-5 | Jill Davis | Match data | Sep 3, 1981* | R128 | US Open | Grand Slam | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Joyce Portman | — | — | — | 1,649 | 17 | 30 | 36.2% | 0 | 0 | 0 | 0 | 0 | 0 |
| Jill Davis | — | — | — | 1,641 | 20 | 24 | 45.5% | 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.
| Joyce Portman | Jill Davis | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1978 | 0–1 | 0.0% | — | 1,484 | 0 | 0 | 1979 | 1–2 | 33.3% | — | 1,502 | 0 | 0 |
| 1979 | 1–1 | 50.0% | — | 1,503 | 0 | 0 | 1980 | 2–5 | 28.6% | — | 1,484 | 0 | 0 |
| 1980 | 6–9 | 40.0% | — | 1,519 | 0 | 0 | 1981 | 7–4 | 63.6% | — | 1,549 | 0 | 0 |
| 1981 | 10–17 | 37.0% | — | 1,546 | 0 | 0 | 1982 | 7–6 | 53.8% | — | 1,627 | 0 | 0 |
| 1982 | 0–2 | 0.0% | — | 1,533 | 0 | 0 | 1983 | 3–7 | 30.0% | — | 1,614 | 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.
| Joyce Portman | Jill Davis | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | ||
| 1979 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 1979 | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — |
| 1980 | 1 | 5 | 6 | 16.7% | 2 | 1 | 3 | 66.7% | — | — | — | — | 0 | 2 | 2 | 0.0% | 1980 | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1981 | 3 | 7 | 10 | 30.0% | 7 | 6 | 13 | 53.8% | 0 | 1 | 1 | 0.0% | 0 | 3 | 3 | 0.0% | 1981 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 1982 | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | 1982 | 4 | 3 | 7 | 57.1% | 0 | 1 | 1 | 0.0% | 3 | 1 | 4 | 75.0% | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1983 | 0 | 3 | 3 | 0.0% | 0 | 1 | 1 | 0.0% | 3 | 3 | 6 | 50.0% | — | — | — | — |
| Career | 4 | 12 | 16 | 25.0% | 10 | 10 | 20 | 50.0% | 0 | 1 | 1 | 0.0% | 0 | 5 | 5 | 0.0% | Career | 5 | 8 | 13 | 38.5% | 0 | 3 | 3 | 0.0% | 7 | 7 | 14 | 50.0% | — | — | — | — |
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.
| Joyce Portman | Jill Davis | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1978 | 1484 | 97.9 | — | — | — | — | — | — | — | 0.0% | -2.50 | — | — | — | +0.09 | 1979 | 1502 | 103.3 | — | — | — | — | — | — | +56 | 33.3% | -1.17 | — | 1–0 | — | +0.14 |
| 1979 | 1503 | 114.2 | — | — | — | — | — | — | — | 50.0% | +1.00 | — | — | — | -0.07 | 1980 | 1484 | 97.9 | — | — | — | — | — | — | — | 35.7% | -0.43 | 1–1 | 0–2 | — | +0.17 |
| 1980 | 1520 | 109.2 | — | — | — | — | -38 | +65 | — | 44.1% | -0.91 | 1–3 (25%) | 1–1 | — | -0.28 | 1981 | 1549 | 114.9 | — | — | — | — | — | — | — | 65.2% | +1.17 | 2–1 (67%) | 2–0 | — | +0.22 |
| 1981 | 1547 | 121.6 | — | — | — | — | -63 | +139 | — | 43.1% | -0.41 | 1–6 (14%) | 0–3 (0%) | 92.6 | +0.60 | 1982 | 1628 | 123.7 | — | — | — | — | -10 | — | +12 | 54.8% | +0.26 | 2–3 (40%) | 4–1 (80%) | 102.9 | -0.05 |
| 1982 | 1533 | 90.0 | — | — | — | — | — | — | — | 0.0% | -5.25 | — | — | — | -0.36 | 1983 | 1614 | 114.2 | — | — | — | — | -25 | — | +35 | 36.4% | -0.59 | 0–2 | 1–1 | — | -0.64 |
| Career | 1649 | 115.8 | — | — | — | — | -53 | +125 | — | 41.2% | -0.75 | 2–9 (18%) | 1–4 (20%) | 91.6 | -0.04 | Career | 1642 | 118.4 | — | — | — | — | -15 | — | +33 | 49.0% | +0.09 | 5–7 (42%) | 8–4 (67%) | 101.9 | -0.37 |
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.
Jill Davis
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Ann Kiyomura Hayashi | 0 | 2 | 2 | Aug 10, 1983 | H2H |
| Louise Allen | 0 | 2 | 2 | Jul 15, 1982 | H2H |
| Jane Preyer | 1 | 1 | 2 | Jun 6, 1982 | H2H |
| Andrea Temesvari | 0 | 1 | 1 | Sep 1, 1983 | H2H |
| Camille Benjamin | 0 | 1 | 1 | Jun 24, 1983 | H2H |