H2H data updated: 2026-09-12 00:00 UTC
Tam Oshaughnessy holds a 1–0 lead over Robyn Knobel in their WTA head-to-head. Across 1 main-draw meeting, Tam Oshaughnessy leads 1–0 on clay. Most recently, Tam Oshaughnessy won the 1972 Chingford round of 16 6-4 3-6 6-2.
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 |
|---|---|---|---|---|---|---|---|---|
| Tam Oshaughnessy | 6-4 3-6 6-2 | Robyn Knobel | Match data | May 26, 1972* | R16 | Chingford | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Robyn Knobel | — | — | — | 1,500 | 0 | 8 | 0.0% | 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.
| Robyn Knobel | Tam Oshaughnessy | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 0–1 | 0.0% | — | 1,480 | 0 | 0 | 1968 | 1–8 | 11.1% | — | 1,436 | 0 | 0 |
| 1969 | 0–1 | 0.0% | — | 1,471 | 0 | 0 | 1969 | 1–6 | 14.3% | — | 1,416 | 0 | 0 |
| 1971 | 0–1 | 0.0% | — | 1,471 | 0 | 0 | 1970 | 1–5 | 16.7% | — | 1,402 | 0 | 0 |
| 1972 | 0–5 | 0.0% | — | 1,407 | 0 | 0 | 1971 | 2–7 | 22.2% | — | 1,387 | 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.
| Robyn Knobel | 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 % | ||
| 1968 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 1968 | 0 | 5 | 5 | 0.0% | 1 | 2 | 3 | 33.3% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1969 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 1969 | 1 | 4 | 5 | 20.0% | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — |
| 1971 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 1970 | 0 | 3 | 3 | 0.0% | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — |
| 1972 | — | — | — | — | 0 | 3 | 3 | 0.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | 1971 | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | 2 | 4 | 6 | 33.3% | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 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 | 3 | 3 | 0.0% | 0 | 5 | 5 | 0.0% | — | — | — | — | 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.
| Robyn Knobel | 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 |
| 1968 | 1481 | 96.4 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | +0.15 | 1968 | 1437 | 92.0 | — | — | — | — | -49 | +76 | — | 11.1% | -3.22 | — | — | — | -0.48 |
| 1969 | 1472 | 98.7 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | +0.01 | 1969 | 1416 | 93.3 | — | — | — | — | -59 | — | — | 14.3% | -2.86 | — | — | — | -0.18 |
| 1971 | 1471 | 108.9 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | -0.12 | 1970 | 1402 | 93.5 | — | — | — | — | -77 | — | +90 | 16.7% | -3.00 | — | — | — | +0.30 |
| 1972 | 1408 | 96.0 | — | — | — | — | — | +66 | — | 16.7% | -2.42 | 0–2 | — | — | +0.83 | 1971 | 1388 | 99.0 | — | — | — | — | — | — | +98 | 26.3% | -1.95 | 0–1 | — | — | +0.83 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 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 | 1500 | 99.4 | — | — | — | — | — | +66 | — | 11.1% | -2.67 | 0–2 | — | — | +10.88 | 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 |
|---|---|---|---|---|---|
| Evonne Goolagong | 0 | 2 | 2 | Dec 10, 1971 | H2H |
| Lucia Bassi | 0 | 1 | 1 | Jul 21, 1972 | H2H |
| Sally Hudson Beck | 0 | 1 | 1 | May 31, 1972 | H2H |
| Tam Oshaughnessy | 0 | 1 | 1 | May 26, 1972 | H2H |
| Gail Sherriff | 0 | 1 | 1 | Apr 5, 1972 | 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 |