H2H data updated: 2026-09-13 00:00 UTC
Janet Haas holds a 1–0 lead over Tina Mochizuki in their WTA head-to-head. Across 1 main-draw meeting, Janet Haas leads 1–0 on clay. Most recently, Janet Haas won the 1972 Raleigh round of 32 6-0 6-1.
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 6-1 | Tina Mochizuki | Match data | Jun 29, 1972* | R32 | Raleigh | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tina Mochizuki | — | — | — | 1,679 | 84 | 134 | 38.5% | 0 | 0 | 0 | 0 | 1 | 1 |
| Janet Haas | — | — | — | 1,622 | 30 | 43 | 41.1% | 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.
| Tina Mochizuki | Janet Haas | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 0–1 | 0.0% | — | 1,484 | 0 | 0 | 1972 | 6–7 | 46.2% | — | 1,516 | 0 | 0 |
| 1969 | 0–2 | 0.0% | — | 1,449 | 0 | 0 | 1973 | 9–13 | 40.9% | — | 1,567 | 0 | 0 |
| 1970 | 0–2 | 0.0% | — | 1,424 | 0 | 0 | 1974 | 9–15 | 37.5% | — | 1,524 | 0 | 0 |
| 1971 | 2–3 | 40.0% | — | 1,445 | 0 | 0 | 1975 | 4–7 | 36.4% | — | 1,487 | 0 | 0 |
| 1972 | 3–5 | 37.5% | — | 1,432 | 0 | 0 | 1980 | 2–1 | 66.7% | — | 1,505 | 0 | 0 |
| 1973 | 3–2 | 60.0% | — | 1,463 | 0 | 0 | — | — | — | — | — | — | — |
| 1974 | 0–1 | 0.0% | — | 1,452 | 0 | 0 | — | — | — | — | — | — | — |
| 1978 | 0–1 | 0.0% | — | 1,438 | 0 | 0 | — | — | — | — | — | — | — |
| 1980 | 15–10 | 60.0% | — | 1,552 | 0 | 0 | — | — | — | — | — | — | — |
| 1981 | 13–7 | 65.0% | — | 1,612 | 0 | 1 | — | — | — | — | — | — | — |
| 1982 | 6–3 | 66.7% | — | 1,629 | 0 | 1 | — | — | — | — | — | — | — |
| 1983 | 11–13 | 45.8% | — | 1,602 | 0 | 1 | — | — | — | — | — | — | — |
| 1984 | 5–17 | 22.7% | — | 1,454 | 0 | 1 | — | — | — | — | — | — | — |
| 1985 | 5–12 | 29.4% | — | 1,475 | 0 | 1 | — | — | — | — | — | — | — |
| 1986 | 11–19 | 36.7% | — | 1,521 | 0 | 1 | — | — | — | — | — | — | — |
| 1987 | 8–25 | 24.2% | — | 1,455 | 0 | 1 | — | — | — | — | — | — | — |
| 1988 | 2–11 | 15.4% | — | 1,411 | 0 | 1 | — | — | — | — | — | — | — |
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.
| Tina Mochizuki | Janet Haas | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | ||
| 1968 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | 1972 | — | — | — | — | 5 | 5 | 10 | 50.0% | 1 | 2 | 3 | 33.3% | — | — | — | — |
| 1969 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | 1973 | 0 | 1 | 1 | 0.0% | 7 | 10 | 17 | 41.2% | 2 | 2 | 4 | 50.0% | — | — | — | — |
| 1970 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | 0 | 1 | 1 | 0.0% | 5 | 7 | 12 | 41.7% | 2 | 4 | 6 | 33.3% | 2 | 2 | 4 | 50.0% |
| 1971 | — | — | — | — | 2 | 3 | 5 | 40.0% | — | — | — | — | — | — | — | — | 1975 | — | — | — | — | 3 | 4 | 7 | 42.9% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1972 | 2 | 2 | 4 | 50.0% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | 1980 | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — | — | — | — | — |
| 1973 | 3 | 2 | 5 | 60.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1974 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1980 | 8 | 6 | 14 | 57.1% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1981 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1982 | 5 | 2 | 7 | 71.4% | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1983 | 3 | 5 | 8 | 37.5% | 2 | 3 | 5 | 40.0% | 4 | 4 | 8 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1984 | 2 | 9 | 11 | 18.2% | 2 | 5 | 7 | 28.6% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1985 | 3 | 4 | 7 | 42.9% | 0 | 3 | 3 | 0.0% | 1 | 2 | 3 | 33.3% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1986 | 7 | 9 | 16 | 43.8% | 1 | 4 | 5 | 20.0% | 1 | 3 | 4 | 25.0% | 2 | 3 | 5 | 40.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1987 | 3 | 9 | 12 | 25.0% | 1 | 6 | 7 | 14.3% | 3 | 6 | 9 | 33.3% | 1 | 4 | 5 | 20.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1988 | 0 | 7 | 7 | 0.0% | — | — | — | — | 2 | 3 | 5 | 40.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 36 | 62 | 98 | 36.7% | 9 | 27 | 36 | 25.0% | 12 | 21 | 33 | 36.4% | 5 | 12 | 17 | 29.4% | Career | 0 | 2 | 2 | 0.0% | 22 | 27 | 49 | 44.9% | 5 | 9 | 14 | 35.7% | 2 | 2 | 4 | 50.0% |
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.
| Tina Mochizuki | Janet Haas | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1968 | 1484 | 98.0 | — | — | — | — | — | — | — | 0.0% | -2.50 | — | — | — | +0.09 | 1972 | 1516 | 107.8 | — | — | — | — | — | +19 | +19 | 42.3% | -0.61 | 1–1 | 0–1 | — | +1.01 |
| 1969 | 1450 | 94.9 | — | — | — | — | — | — | — | 20.0% | -1.60 | 0–1 | — | — | +0.55 | 1973 | 1568 | 116.9 | — | — | — | — | — | +4 | -23 | 43.5% | -0.72 | 2–2 (50%) | 2–0 | — | +1.09 |
| 1970 | 1425 | 82.2 | — | — | — | — | — | — | — | 0.0% | -5.75 | — | — | — | +0.38 | 1974 | 1524 | 110.3 | — | — | — | — | +16 | +3 | +20 | 40.0% | -0.76 | 2–2 (50%) | — | — | +2.00 |
| 1971 | 1446 | 105.4 | — | — | — | — | — | +83 | — | 41.7% | -1.67 | 1–1 | 2–1 (67%) | — | +0.16 | 1975 | 1487 | 101.2 | — | — | — | — | — | +24 | — | 30.4% | -1.48 | 2–1 (67%) | 2–1 (67%) | 102.5 | +0.84 |
| 1972 | 1432 | 89.9 | — | — | — | — | +20 | +60 | — | 35.3% | -1.53 | 1–0 | 1–0 | — | +1.65 | 1980 | 1506 | 104.8 | — | — | — | — | — | +17 | — | 66.7% | +1.50 | — | — | — | +0.38 |
| 1973 | 1464 | 107.3 | — | — | — | — | +59 | — | — | 54.5% | +0.55 | 1–0 | 0–1 | — | +0.92 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1974 | 1453 | 100.4 | — | — | — | — | — | — | — | 33.3% | -1.33 | 0–1 | — | — | +0.16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1978 | 1438 | 98.2 | — | — | — | — | — | — | — | 0.0% | -2.00 | — | — | — | +0.06 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1980 | 1552 | 114.3 | — | — | — | — | +26 | — | — | 58.6% | +0.64 | 4–4 (50%) | 2–2 (50%) | 102.3 | +2.50 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1981 | 1612 | 122.2 | — | — | — | — | — | — | — | 61.2% | +0.75 | 5–4 (56%) | 2–2 (50%) | 101.0 | -0.50 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1982 | 1630 | 109.6 | — | — | — | — | -12 | — | — | 57.9% | +0.47 | 2–1 (67%) | — | — | +1.68 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1983 | 1603 | 109.9 | — | — | — | — | -3 | -38 | +4 | 45.0% | -0.18 | 7–5 (58%) | 2–5 (29%) | 99.8 | +2.25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1984 | 1454 | 106.3 | — | — | — | — | +20 | +74 | +143 | 34.6% | -0.73 | 0–8 (0%) | 1–5 (17%) | 87.8 | +1.89 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1985 | 1476 | 106.7 | — | — | — | — | +39 | -8 | +73 | 27.8% | -1.78 | 2–2 (50%) | 1–2 (33%) | 100.1 | +0.99 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1986 | 1522 | 112.2 | — | — | — | — | +26 | -72 | +33 | 36.4% | -1.26 | 4–2 (67%) | 6–3 (67%) | 106.4 | +1.60 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1987 | 1455 | 108.3 | — | — | — | — | +35 | -45 | +65 | 27.4% | -1.58 | 3–6 (33%) | 2–2 (50%) | 99.7 | +0.36 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1988 | 1412 | 109.7 | — | — | — | — | -11 | — | +90 | 25.8% | -1.32 | 1–4 (20%) | 1–2 (33%) | 96.9 | +0.19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1680 | 112.0 | — | — | — | — | +21 | +8 | +60 | 40.2% | -0.71 | 31–39 (44%) | 20–25 (44%) | 98.4 | +6.88 | Career | 1622 | 112.6 | — | — | — | — | +16 | +10 | +7 | 41.1% | -0.74 | 7–6 (54%) | 4–2 (67%) | 103.4 | +7.71 |
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 |
|---|---|---|---|---|---|
| Camille Benjamin | 0 | 4 | 4 | Jul 21, 1988 | H2H |
| Alycia Moulton | 2 | 2 | 4 | Mar 14, 1985 | H2H |
| Wendy Turnbull | 0 | 3 | 3 | Dec 31, 1987 | H2H |
| Vicki Nelson | 0 | 3 | 3 | Apr 30, 1987 | H2H |
| Bonnie Gadusek | 1 | 2 | 3 | Mar 19, 1987 | H2H |
| 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 |