H2H data updated: 2026-09-13 00:00 UTC
Janet Haas vs Tam Oshaughnessy: 0–0 excluding walkovers; 0–1 including 1 walkover. The archive contains 1 main-draw results, including walkovers. Most recently, Tam Oshaughnessy won the 1974 Atlanta round of 64 W/O.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Tam Oshaughnessy | (w/o) | Janet Haas | Match data | Apr 24, 1974* | R64 | Atlanta | 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.
| 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 |
| Tam Oshaughnessy | — | — | — | 1,500 | 16 | 51 | 23.9% | 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 | Tam Oshaughnessy | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 1–8 | 11.1% | — | 1,436 | 0 | 0 |
| 1973 | 9–13 | 40.9% | — | 1,567 | 0 | 0 | 1969 | 1–6 | 14.3% | — | 1,416 | 0 | 0 |
| 1974 | 9–15 | 37.5% | — | 1,524 | 0 | 0 | 1970 | 1–5 | 16.7% | — | 1,402 | 0 | 0 |
| 1975 | 4–7 | 36.4% | — | 1,487 | 0 | 0 | 1971 | 2–7 | 22.2% | — | 1,387 | 0 | 0 |
| 1980 | 2–1 | 66.7% | — | 1,505 | 0 | 0 | 1972 | 5–14 | 26.3% | — | 1,438 | 0 | 0 |
| — | — | — | — | — | — | — | 1973 | 0–3 | 0.0% | — | 1,421 | 0 | 0 |
| — | — | — | — | — | — | — | 1974 | 6–8 | 42.9% | — | 1,401 | 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 | Tam Oshaughnessy | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 5 | 5 | 0.0% | 1 | 2 | 3 | 33.3% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1973 | 0 | 1 | 1 | 0.0% | 7 | 10 | 17 | 41.2% | 2 | 2 | 4 | 50.0% | — | — | — | — | 1969 | 1 | 4 | 5 | 20.0% | — | — | — | — | 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% | 1970 | 0 | 3 | 3 | 0.0% | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — |
| 1975 | — | — | — | — | 3 | 4 | 7 | 42.9% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1971 | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | 2 | 4 | 6 | 33.3% | — | — | — | — |
| 1980 | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — | — | — | — | — | 1972 | 0 | 1 | 1 | 0.0% | 2 | 5 | 7 | 28.6% | 3 | 7 | 10 | 30.0% | 0 | 1 | 1 | 0.0% |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1973 | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | 1 | 2 | 3 | 33.3% | 1 | 2 | 3 | 33.3% | 0 | 1 | 1 | 0.0% | 3 | 1 | 4 | 75.0% |
| Career | 0 | 2 | 2 | 0.0% | 22 | 27 | 49 | 44.9% | 5 | 9 | 14 | 35.7% | 2 | 2 | 4 | 50.0% | Career | 2 | 17 | 19 | 10.5% | 4 | 13 | 17 | 23.5% | 6 | 17 | 23 | 26.1% | 3 | 2 | 5 | 60.0% |
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.
| Janet Haas | Tam Oshaughnessy | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 1437 | 92.0 | — | — | — | — | -49 | +76 | — | 11.1% | -3.22 | — | — | — | -0.48 |
| 1973 | 1568 | 116.9 | — | — | — | — | — | +4 | -23 | 43.5% | -0.72 | 2–2 (50%) | 2–0 | — | +1.09 | 1969 | 1416 | 93.3 | — | — | — | — | -59 | — | — | 14.3% | -2.86 | — | — | — | -0.18 |
| 1974 | 1524 | 110.3 | — | — | — | — | +16 | +3 | +20 | 40.0% | -0.76 | 2–2 (50%) | — | — | +2.00 | 1970 | 1402 | 93.5 | — | — | — | — | -77 | — | +90 | 16.7% | -3.00 | — | — | — | +0.30 |
| 1975 | 1487 | 101.2 | — | — | — | — | — | +24 | — | 30.4% | -1.48 | 2–1 (67%) | 2–1 (67%) | 102.5 | +0.84 | 1971 | 1388 | 99.0 | — | — | — | — | — | — | +98 | 26.3% | -1.95 | 0–1 | — | — | +0.83 |
| 1980 | 1506 | 104.8 | — | — | — | — | — | +17 | — | 66.7% | +1.50 | — | — | — | +0.38 | 1972 | 1438 | 108.2 | — | — | — | — | — | +35 | +51 | 30.0% | -1.70 | 2–2 (50%) | 1–0 | — | -0.25 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1973 | 1421 | 109.9 | — | — | — | — | — | — | — | 14.3% | -2.71 | 0–1 | — | — | -0.12 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | 1401 | 97.2 | — | — | — | — | 0 | +24 | — | 34.6% | -1.04 | 1–1 | 1–0 | — | +1.51 |
| Career | 1622 | 112.6 | — | — | — | — | +16 | +10 | +7 | 41.1% | -0.74 | 7–6 (54%) | 4–2 (67%) | 103.4 | +7.71 | Career | 1500 | 98.9 | — | — | — | — | -39 | +42 | +72 | 24.3% | -2.10 | 3–5 (38%) | 2–0 | — | +2.52 |
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 |
|---|---|---|---|---|---|
| Karen Krantzcke | 0 | 3 | 3 | Aug 9, 1973 | H2H |
| Nancy Richey | 0 | 3 | 3 | Mar 24, 1972 | H2H |
| Penny Moor | 0 | 2 | 2 | Jun 12, 1974 | H2H |
| Marita Redondo | 1 | 1 | 2 | Apr 4, 1974 | H2H |
| Liz Worner | 0 | 2 | 2 | Mar 21, 1974 | H2H |