H2H data updated: 2026-09-13 00:00 UTC
Janet Haas holds a 1–0 lead over Andrea Voikos in their WTA head-to-head. Across 1 main-draw meeting, Janet Haas leads 1–0 on grass. Most recently, Janet Haas won the 1974 Newport round of 64 6-0 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.
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Janet Haas | 6-0 6-3 | Andrea Voikos | Match data | Aug 20, 1974* | R64 | Newport | WTA 250 | Grass |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Janet Haas | — | — | — | 1,622 | 30 | 43 | 41.1% | 0 | 0 | 0 | 0 | 0 | 0 |
| Andrea Voikos | — | — | — | 1,520 | 6 | 11 | 35.3% | 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.
| Janet Haas | Andrea Voikos | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1972 | 6–7 | 46.2% | — | 1,516 | 0 | 0 | 1968 | 3–4 | 42.9% | — | 1,495 | 0 | 0 |
| 1973 | 9–13 | 40.9% | — | 1,567 | 0 | 0 | 1969 | 1–2 | 33.3% | — | 1,495 | 0 | 0 |
| 1974 | 9–15 | 37.5% | — | 1,524 | 0 | 0 | 1970 | 1–1 | 50.0% | — | 1,507 | 0 | 0 |
| 1975 | 4–7 | 36.4% | — | 1,487 | 0 | 0 | 1971 | 0–1 | 0.0% | — | 1,505 | 0 | 0 |
| 1980 | 2–1 | 66.7% | — | 1,505 | 0 | 0 | 1972 | 1–2 | 33.3% | — | 1,508 | 0 | 0 |
| — | — | — | — | — | — | — | 1974 | 0–1 | 0.0% | — | 1,492 | 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.
| Janet Haas | Andrea Voikos | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | ||
| 1972 | — | — | — | — | 5 | 5 | 10 | 50.0% | 1 | 2 | 3 | 33.3% | — | — | — | — | 1968 | 0 | 1 | 1 | 0.0% | — | — | — | — | 3 | 2 | 5 | 60.0% | 0 | 1 | 1 | 0.0% |
| 1973 | 0 | 1 | 1 | 0.0% | 7 | 10 | 17 | 41.2% | 2 | 2 | 4 | 50.0% | — | — | — | — | 1969 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% |
| 1974 | 0 | 1 | 1 | 0.0% | 5 | 7 | 12 | 41.7% | 2 | 4 | 6 | 33.3% | 2 | 2 | 4 | 50.0% | 1970 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 1975 | — | — | — | — | 3 | 4 | 7 | 42.9% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1971 | — | — | — | — | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 1980 | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — | — | — | — | — | 1972 | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| Career | 0 | 2 | 2 | 0.0% | 22 | 27 | 49 | 44.9% | 5 | 9 | 14 | 35.7% | 2 | 2 | 4 | 50.0% | Career | 0 | 1 | 1 | 0.0% | 1 | 2 | 3 | 33.3% | 3 | 4 | 7 | 42.9% | 2 | 4 | 6 | 33.3% |
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.
| Janet Haas | Andrea Voikos | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1972 | 1516 | 107.8 | — | — | — | — | — | +19 | +19 | 42.3% | -0.61 | 1–1 | 0–1 | — | +1.01 | 1968 | 1495 | 96.4 | — | — | — | — | — | — | +62 | 46.7% | -1.07 | 0–1 | — | — | +0.61 |
| 1973 | 1568 | 116.9 | — | — | — | — | — | +4 | -23 | 43.5% | -0.72 | 2–2 (50%) | 2–0 | — | +1.09 | 1969 | 1496 | 102.4 | — | — | — | — | — | — | — | 33.3% | -1.67 | — | — | — | -0.08 |
| 1974 | 1524 | 110.3 | — | — | — | — | +16 | +3 | +20 | 40.0% | -0.76 | 2–2 (50%) | — | — | +2.00 | 1970 | 1507 | 101.3 | — | — | — | — | — | — | — | 60.0% | -0.60 | 0–1 | — | — | +0.06 |
| 1975 | 1487 | 101.2 | — | — | — | — | — | +24 | — | 30.4% | -1.48 | 2–1 (67%) | 2–1 (67%) | 102.5 | +0.84 | 1971 | 1505 | 99.8 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | -0.07 |
| 1980 | 1506 | 104.8 | — | — | — | — | — | +17 | — | 66.7% | +1.50 | — | — | — | +0.38 | 1972 | 1508 | 104.8 | — | — | — | — | — | — | — | 50.0% | +1.00 | — | — | — | +0.29 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | 1492 | 94.1 | — | — | — | — | — | — | — | 0.0% | -4.50 | — | — | — | +0.12 |
| Career | 1622 | 112.6 | — | — | — | — | +16 | +10 | +7 | 41.1% | -0.74 | 7–6 (54%) | 4–2 (67%) | 103.4 | +7.71 | Career | 1521 | 99.3 | — | — | — | — | — | — | +62 | 41.2% | -1.21 | 0–2 | — | — | +5.81 |
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 |
|---|---|---|---|---|---|
| Jeanne Evert | 0 | 4 | 4 | Oct 16, 1975 | H2H |
| Michele Gurdal | 1 | 2 | 3 | Aug 15, 1974 | H2H |
| Jill Schwikert | 2 | 0 | 2 | Oct 15, 1975 | H2H |
| Maria Teresa Nasuelli | 0 | 2 | 2 | Mar 6, 1975 | H2H |
| Patricia Reese | 1 | 1 | 2 | Jun 16, 1974 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Mary Ann Eisel | 0 | 2 | 2 | Aug 19, 1969 | H2H |
| Janet Haas | 0 | 1 | 1 | Aug 20, 1974 | H2H |
| Brenda Kirk | 0 | 1 | 1 | Aug 4, 1972 | H2H |
| Janice Metcalf | 0 | 1 | 1 | Jun 30, 1972 | H2H |
| Julia Ann Holt | 1 | 0 | 1 | Jun 29, 1972 | H2H |