Chris Oneil
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Lesley Charles | 2 | 3 | 5 | Mar 21, 1976 | H2H |
| Dianne Fromholtz | 2 | 2 | 4 | Dec 14, 1978 | H2H |
| Patti Hogan | 1 | 3 | 4 | May 31, 1975 | H2H |
| Linda Mottram | 1 | 3 | 4 | May 10, 1975 | H2H |
| Betsy Nagelsen | 1 | 2 | 3 | Oct 21, 1983 | H2H |
H2H data updated: 2026-09-12 00:00 UTC
Chris Oneil vs Mariana Simionescu H2H: 0-2
Mariana Simionescu holds a 2–0 lead over Chris Oneil in their WTA head-to-head. Across 2 main-draw meetings, Mariana Simionescu leads 1–0 on clay. Most recently, Mariana Simionescu won the 1978 Milan quarterfinal 6-1 5-7 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.
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Mariana Simionescu | 6-1 5-7 6-2 | Chris Oneil | Match data | Apr 8, 1978* | QF | Milan | WTA 250 | — |
| Mariana Simionescu | 6-3 7-5 | Chris Oneil | Match data | Oct 22, 1977* | SF | Barcelona | 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.
Career Comparison
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chris Oneil | — | — | — | 1,766 | 99 | 108 | 47.8% | 1 | 0 | 0 | 2 | 6 | 9 |
| Mariana Simionescu | — | — | — | 1,743 | 68 | 72 | 48.6% | 0 | 0 | 0 | 0 | 2 | 2 |
Career Progression by Age
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 | Chris Oneil | Mariana Simionescu | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | 1972 | 6–3 | 66.7% | — | 1,547 | 0 | 2 | 1973 | 5–8 | 38.5% | — | 1,515 | 0 | 0 |
| 17 | 1973 | 0–3 | 0.0% | — | 1,502 | 0 | 2 | 1974 | 13–12 | 52.0% | — | 1,591 | 0 | 0 |
| 18 | 1974 | 10–12 | 45.5% | — | 1,588 | 0 | 2 | 1975 | 10–14 | 41.7% | — | 1,614 | 0 | 0 |
| 19 | 1975 | 30–17 | 63.8% | — | 1,661 | 0 | 4 | 1976 | 15–13 | 53.6% | — | 1,691 | 0 | 1 |
| 20 | 1976 | 14–6 | 70.0% | — | 1,691 | 0 | 7 | 1977 | 7–8 | 46.7% | — | 1,703 | 0 | 1 |
| 21 | 1977 | 2–5 | 28.6% | — | 1,638 | 0 | 7 | 1978 | 9–10 | 47.4% | — | 1,689 | 0 | 1 |
| 22 | 1978 | 13–12 | 52.0% | — | 1,716 | 1 | 8 | 1979 | 0–3 | 0.0% | — | 1,632 | 0 | 1 |
| 23 | 1979 | 7–12 | 36.8% | — | 1,630 | 1 | 8 | 1980 | 9–4 | 69.2% | — | 1,709 | 0 | 2 |
| 24 | 1980 | 5–8 | 38.5% | — | 1,575 | 1 | 8 | — | — | — | — | — | — | — |
| 25 | 1981 | 4–9 | 30.8% | — | 1,552 | 1 | 9 | — | — | — | — | — | — | — |
| 26 | 1982 | 3–6 | 33.3% | — | 1,595 | 1 | 9 | — | — | — | — | — | — | — |
| 27 | 1983 | 5–15 | 25.0% | — | 1,526 | 1 | 9 | — | — | — | — | — | — | — |
Surface Results by Age
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 | Chris Oneil | Mariana Simionescu | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 16 | 1972 | — | — | — | — | 3 | 0 | 3 | 100.0% | 3 | 3 | 6 | 50.0% | — | — | — | — | 1973 | — | — | — | — | 1 | 3 | 4 | 25.0% | 0 | 2 | 2 | 0.0% | 4 | 3 | 7 | 57.1% |
| 17 | 1973 | — | — | — | — | — | — | — | — | 0 | 3 | 3 | 0.0% | — | — | — | — | 1974 | 0 | 1 | 1 | 0.0% | 11 | 6 | 17 | 64.7% | 2 | 4 | 6 | 33.3% | 0 | 1 | 1 | 0.0% |
| 18 | 1974 | — | — | — | — | 4 | 4 | 8 | 50.0% | 6 | 8 | 14 | 42.9% | — | — | — | — | 1975 | 0 | 1 | 1 | 0.0% | 8 | 7 | 15 | 53.3% | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% |
| 19 | 1975 | — | — | — | — | 18 | 5 | 23 | 78.3% | 10 | 8 | 18 | 55.6% | — | — | — | — | 1976 | 1 | 1 | 2 | 50.0% | 9 | 7 | 16 | 56.3% | 4 | 1 | 5 | 80.0% | 1 | 4 | 5 | 20.0% |
| 20 | 1976 | — | — | — | — | 3 | 3 | 6 | 50.0% | 4 | 2 | 6 | 66.7% | — | — | — | — | 1977 | — | — | — | — | 1 | 3 | 4 | 25.0% | 3 | 1 | 4 | 75.0% | 3 | 3 | 6 | 50.0% |
| 21 | 1977 | — | — | — | — | 0 | 2 | 2 | 0.0% | 2 | 3 | 5 | 40.0% | — | — | — | — | 1978 | 1 | 2 | 3 | 33.3% | 4 | 3 | 7 | 57.1% | 0 | 1 | 1 | 0.0% | 1 | 2 | 3 | 33.3% |
| 22 | 1978 | 0 | 2 | 2 | 0.0% | 1 | 3 | 4 | 25.0% | 10 | 4 | 14 | 71.4% | 0 | 1 | 1 | 0.0% | 1979 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 23 | 1979 | 2 | 2 | 4 | 50.0% | 1 | 4 | 5 | 20.0% | 2 | 5 | 7 | 28.6% | — | — | — | — | 1980 | 5 | 1 | 6 | 83.3% | 4 | 3 | 7 | 57.1% | — | — | — | — | — | — | — | — |
| 24 | 1980 | 0 | 1 | 1 | 0.0% | 2 | 4 | 6 | 33.3% | 3 | 2 | 5 | 60.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 1981 | — | — | — | — | 0 | 5 | 5 | 0.0% | 2 | 4 | 6 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 1982 | — | — | — | — | 1 | 3 | 4 | 25.0% | 2 | 2 | 4 | 50.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 1983 | 2 | 6 | 8 | 25.0% | 0 | 4 | 4 | 0.0% | 2 | 4 | 6 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 4 | 11 | 15 | 26.7% | 33 | 37 | 70 | 47.1% | 46 | 48 | 94 | 48.9% | 0 | 3 | 3 | 0.0% | — | 7 | 7 | 14 | 50.0% | 38 | 33 | 71 | 53.5% | 9 | 11 | 20 | 45.0% | 9 | 15 | 24 | 37.5% |
Advanced Statistics Comparison by Age
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 | Chris Oneil | Mariana Simionescu | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 16 | 1972 | 1548 | 107.2 | — | — | — | — | — | +39 | +1 | 57.9% | +0.53 | 2–1 (67%) | 3–0 (100%) | 104.5 | +1.29 | 1973 | 1516 | 96.6 | — | — | — | — | +72 | -34 | — | 41.9% | -0.71 | 2–3 (40%) | 1–1 | — | +1.45 |
| 17 | 1973 | 1503 | 96.5 | — | — | — | — | — | — | -14 | 14.3% | -2.00 | 0–1 | 0–2 | — | +0.32 | 1974 | 1591 | 117.5 | — | — | — | — | — | +8 | -55 | 49.1% | -0.27 | 4–3 (57%) | 1–1 | — | +1.23 |
| 18 | 1974 | 1589 | 130.7 | — | — | — | — | — | +28 | -30 | 49.0% | -0.18 | 2–5 (29%) | 1–1 | — | -0.21 | 1975 | 1614 | 121.8 | — | — | — | — | -38 | +35 | — | 43.6% | -0.09 | 3–4 (43%) | 1–5 (17%) | 93.9 | +0.75 |
| 19 | 1975 | 1661 | 134.9 | — | — | — | — | — | +126 | -23 | 61.8% | +0.86 | 5–3 (63%) | 7–1 (88%) | 106.5 | +3.59 | 1976 | 1691 | 133.9 | — | — | — | — | -127 | -3 | -77 | 56.1% | +0.48 | 3–7 (30%) | 2–2 (50%) | 95.9 | +1.06 |
| 20 | 1976 | 1691 | 124.2 | — | — | — | — | — | +57 | -6 | 68.2% | +1.39 | 2–2 (50%) | 2–1 (67%) | 100.3 | +2.35 | 1977 | 1703 | 124.7 | — | — | — | — | -115 | -9 | -57 | 50.0% | -0.03 | 1–1 | — | — | +1.60 |
| 21 | 1977 | 1638 | 111.9 | — | — | — | — | — | — | +4 | 35.3% | -0.53 | 1–2 (33%) | 1–0 | — | +0.42 | 1978 | 1689 | 124.2 | — | — | — | — | -72 | +21 | — | 44.2% | -0.19 | 4–3 (57%) | 0–3 (0%) | 99.0 | +0.10 |
| 22 | 1978 | 1716 | 126.6 | — | — | — | — | -151 | -47 | +65 | 49.1% | 0.00 | 4–3 (57%) | 1–1 | — | +1.21 | 1979 | 1633 | 95.0 | — | — | — | — | — | — | — | 0.0% | -3.17 | — | — | — | +0.57 |
| 23 | 1979 | 1631 | 118.0 | — | — | — | — | -44 | -33 | +83 | 43.2% | -0.55 | 3–5 (38%) | 1–0 | — | +1.29 | 1980 | 1709 | 116.1 | — | — | — | — | -66 | +3 | — | 64.5% | +0.64 | 3–2 (60%) | 3–1 (75%) | 103.9 | +0.91 |
| 24 | 1980 | 1576 | 99.2 | — | — | — | — | — | -18 | +119 | 37.9% | -0.79 | 2–1 (67%) | 0–3 (0%) | 98.2 | +0.16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 1981 | 1552 | 111.1 | — | — | — | — | — | -52 | +127 | 39.3% | -1.11 | 1–3 (25%) | 2–1 (67%) | — | +0.74 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 1982 | 1596 | 132.3 | — | — | — | — | — | -112 | +127 | 38.1% | -0.76 | 1–2 (33%) | 1–2 (33%) | 100.0 | -1.11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 1983 | 1527 | 99.9 | — | — | — | — | -38 | -41 | +147 | 27.3% | -1.34 | 2–2 (50%) | 0–5 (0%) | 95.9 | +0.78 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1766 | 128.0 | — | — | — | — | -62 | +33 | +36 | 48.6% | -0.06 | 25–30 (45%) | 19–17 (53%) | 100.0 | +5.26 | — | 1744 | 126.3 | — | — | — | — | -58 | +9 | -63 | 48.9% | -0.06 | 20–23 (47%) | 8–13 (38%) | 95.8 | +5.56 |
Career Rivalries
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
Mariana Simionescu
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Regina Marsikova | 0 | 4 | 4 | Jun 6, 1978 | H2H |
| Virginia Ruzici | 0 | 4 | 4 | May 26, 1978 | H2H |
| Donna Ganz | 2 | 2 | 4 | Jun 7, 1975 | H2H |
| Sue Barker | 1 | 2 | 3 | Oct 19, 1978 | H2H |
| Laura Dupont | 2 | 1 | 3 | May 26, 1976 | H2H |