H2H data updated: 2026-09-13 00:00 UTC
Kathy Horvath holds a 1–0 lead over Joyce Portman in their WTA head-to-head. Across 1 main-draw meeting, Kathy Horvath leads 1–0 on clay. Most recently, Kathy Horvath won the 1982 Amelia Island round of 64 6-1 6-0.
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 |
|---|---|---|---|---|---|---|---|---|
| Kathy Horvath | 6-1 6-0 | Joyce Portman | Match data | Apr 21, 1982* | R64 | Amelia Island | 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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kathy Horvath | #283 | #10 | 24 | 1,975 | 187 | 155 | 54.7% | 0 | 0 | 0 | 0 | 7 | 7 |
| Joyce Portman | — | — | — | 1,649 | 17 | 30 | 36.2% | 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.
| Age | Kathy Horvath | Joyce Portman | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 13 | 1979 | 0–2 | 0.0% | — | 1,496 | 0 | 0 | — | — | — | — | — | — | — |
| 14 | 1980 | 6–7 | 46.2% | — | 1,563 | 0 | 0 | — | — | — | — | — | — | — |
| 15 | 1981 | 34–23 | 59.6% | — | 1,858 | 0 | 2 | — | — | — | — | — | — | — |
| 16 | 1982 | 15–17 | 46.9% | — | 1,775 | 0 | 2 | — | — | — | — | — | — | — |
| 17 | 1983 | 39–18 | 68.4% | — | 1,930 | 0 | 4 | — | — | — | — | — | — | — |
| 18 | 1984 | 25–19 | 56.8% | #29 | 1,799 | 0 | 4 | — | — | — | — | — | — | — |
| 19 | 1985 | 23–16 | 59.0% | #34 | 1,775 | 0 | 6 | — | — | — | — | — | — | — |
| 20 | 1986 | 16–15 | 51.6% | #47 | 1,739 | 0 | 6 | 1978 | 0–1 | 0.0% | — | 1,484 | 0 | 0 |
| 21 | 1987 | 18–15 | 54.5% | #37 | 1,714 | 0 | 7 | 1979 | 1–1 | 50.0% | — | 1,503 | 0 | 0 |
| 22 | 1988 | 9–15 | 37.5% | #85 | 1,602 | 0 | 7 | 1980 | 6–9 | 40.0% | — | 1,519 | 0 | 0 |
| 23 | 1989 | 2–8 | 20.0% | #224 | 1,529 | 0 | 7 | 1981 | 10–17 | 37.0% | — | 1,546 | 0 | 0 |
| 24 | — | — | — | — | — | — | — | 1982 | 0–2 | 0.0% | — | 1,533 | 0 | 0 |
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 | Kathy Horvath | Joyce Portman | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 13 | 1979 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 14 | 1980 | 5 | 4 | 9 | 55.6% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 15 | 1981 | 7 | 4 | 11 | 63.6% | 15 | 8 | 23 | 65.2% | — | — | — | — | 12 | 11 | 23 | 52.2% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 16 | 1982 | 0 | 2 | 2 | 0.0% | 13 | 6 | 19 | 68.4% | 0 | 2 | 2 | 0.0% | 2 | 7 | 9 | 22.2% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 17 | 1983 | 9 | 4 | 13 | 69.2% | 21 | 11 | 32 | 65.6% | — | — | — | — | 9 | 3 | 12 | 75.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 1984 | 0 | 5 | 5 | 0.0% | 21 | 9 | 30 | 70.0% | 1 | 1 | 2 | 50.0% | 3 | 4 | 7 | 42.9% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 1985 | 6 | 5 | 11 | 54.5% | 17 | 7 | 24 | 70.8% | — | — | — | — | 0 | 4 | 4 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 1986 | 8 | 7 | 15 | 53.3% | 4 | 4 | 8 | 50.0% | 2 | 1 | 3 | 66.7% | 2 | 3 | 5 | 40.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 1987 | 6 | 6 | 12 | 50.0% | 12 | 8 | 20 | 60.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1979 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — |
| 22 | 1988 | 2 | 5 | 7 | 28.6% | 7 | 9 | 16 | 43.8% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1980 | 1 | 5 | 6 | 16.7% | 2 | 1 | 3 | 66.7% | — | — | — | — | 0 | 2 | 2 | 0.0% |
| 23 | 1989 | 2 | 6 | 8 | 25.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | 1981 | 3 | 7 | 10 | 30.0% | 7 | 6 | 13 | 53.8% | 0 | 1 | 1 | 0.0% | 0 | 3 | 3 | 0.0% |
| 24 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1982 | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| Career | — | 45 | 50 | 95 | 47.4% | 111 | 67 | 178 | 62.4% | 3 | 6 | 9 | 33.3% | 28 | 32 | 60 | 46.7% | — | 4 | 12 | 16 | 25.0% | 10 | 10 | 20 | 50.0% | 0 | 1 | 1 | 0.0% | 0 | 5 | 5 | 0.0% |
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 | Kathy Horvath | Joyce Portman | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 13 | 1979 | 1497 | 113.4 | — | — | — | — | — | — | — | 20.0% | -2.20 | 0–1 | 0–1 | — | -0.25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 14 | 1980 | 1563 | 110.2 | — | — | — | — | +45 | -63 | — | 43.3% | -0.37 | 3–1 (75%) | 1–3 (25%) | 102.0 | -0.09 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 15 | 1981 | 1859 | 146.5 | — | — | — | — | -40 | -79 | — | 56.3% | +0.44 | 11–7 (61%) | 7–5 (58%) | 108.4 | +0.14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 16 | 1982 | 1775 | 143.3 | — | — | — | — | -40 | +62 | — | 52.9% | +0.46 | 1–7 (13%) | 2–3 (40%) | 92.6 | -4.36 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 17 | 1983 | 1931 | 149.2 | — | — | — | — | -65 | +55 | — | 63.7% | +0.74 | 9–3 (75%) | 11–6 (65%) | 109.3 | +1.14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 1984 | 1799 | 146.8 | — | — | — | — | -83 | +206 | — | 56.1% | +0.43 | 5–5 (50%) | 3–7 (30%) | 94.7 | +0.34 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 1985 | 1776 | 138.0 | — | — | — | — | -112 | +220 | — | 55.8% | +0.24 | 6–2 (75%) | 5–2 (71%) | 104.1 | -0.67 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 1986 | 1740 | 130.3 | — | — | — | — | -73 | +184 | -140 | 48.6% | -0.18 | 7–3 (70%) | 3–3 (50%) | 104.3 | -1.58 | 1978 | 1484 | 97.9 | — | — | — | — | — | — | — | 0.0% | -2.50 | — | — | — | +0.09 |
| 21 | 1987 | 1714 | 125.9 | — | — | — | — | -43 | +149 | — | 54.1% | +0.18 | 6–4 (60%) | 3–2 (60%) | 101.2 | +3.16 | 1979 | 1503 | 114.2 | — | — | — | — | — | — | — | 50.0% | +1.00 | — | — | — | -0.07 |
| 22 | 1988 | 1603 | 116.3 | — | — | — | — | +7 | +113 | — | 41.5% | -0.64 | 1–4 (20%) | 2–2 (50%) | 94.3 | +0.35 | 1980 | 1520 | 109.2 | — | — | — | — | -38 | +65 | — | 44.1% | -0.91 | 1–3 (25%) | 1–1 | — | -0.28 |
| 23 | 1989 | 1530 | 101.0 | — | — | — | — | +17 | — | — | 33.3% | -1.38 | 0–3 (0%) | 2–2 (50%) | 95.4 | +0.29 | 1981 | 1547 | 121.6 | — | — | — | — | -63 | +139 | — | 43.1% | -0.41 | 1–6 (14%) | 0–3 (0%) | 92.6 | +0.60 |
| 24 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1982 | 1533 | 90.0 | — | — | — | — | — | — | — | 0.0% | -5.25 | — | — | — | -0.36 |
| Career | — | 1976 | 144.0 | — | — | — | — | -49 | +106 | -140 | 53.7% | +0.21 | 49–40 (55%) | 39–36 (52%) | 103.2 | -0.45 | — | 1649 | 115.8 | — | — | — | — | -53 | +125 | — | 41.2% | -0.75 | 2–9 (18%) | 1–4 (20%) | 91.6 | -0.04 |
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 |
|---|---|---|---|---|---|
| Martina Navratilova | 1 | 10 | 11 | Apr 16, 1988 | H2H |
| Bettina Bunge | 3 | 6 | 9 | Aug 21, 1987 | H2H |
| Virginia Ruzici | 4 | 5 | 9 | May 29, 1985 | H2H |
| Kathy Rinaldi Stunkel | 5 | 4 | 9 | Jan 24, 1985 | H2H |
| Chris Evert | 0 | 7 | 7 | Jun 29, 1986 | H2H |
| 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 |