Mark Cox
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Tom Okker | 6 | 11 | 17 | Oct 25, 1979 | H2H |
| Cliff Drysdale | 6 | 10 | 16 | Mar 26, 1977 | H2H |
| Stan Smith | 6 | 7 | 13 | Oct 27, 1979 | H2H |
| Marty Riessen | 4 | 9 | 13 | Mar 13, 1976 | H2H |
| Jan Kodes | 6 | 6 | 12 | Nov 26, 1977 | H2H |
H2H data updated: 2026-09-02 00:00 UTC
Mark Cox holds a 3–0 lead over Jim Osborne in their ATP head-to-head. Across 3 main-draw meetings, Mark Cox leads 2–0 on hard courts and 1–0 on carpet. Most recently, Mark Cox won the 1971 South Orange round of 64 7-6 6-7 7-6.
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 |
|---|---|---|---|---|---|---|---|---|
| Mark Cox | 7-6 6-7 7-6 | Jim Osborne | Match data | Sep 3, 1971* | R64 | South Orange | ATP 250 | Hard |
| Mark Cox | 9-7 1-6 6-3 | Jim Osborne | Match data | Feb 22, 1969* | SF | Macon | ATP 250 | Carpet |
| Mark Cox | 6-3 6-1 | Jim Osborne | Match data | Mar 2, 1968* | QF | Kingston | ATP 250 | Hard |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mark Cox | #486 | #12 | 0 | 2,023 | 406 | 272 | 59.9% | 0 | 0 | 0 | 0 | 13 | 13 |
| Jim Osborne | #831 | #211 | 0 | 1,811 | 118 | 121 | 49.4% | 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.
| Age | Mark Cox | Jim Osborne | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 23 | — | — | — | — | — | — | — | 1968 | 35–24 | 59.3% | — | 1,634 | 0 | 0 |
| 24 | 1968 | 52–23 | 69.3% | — | 1,715 | 0 | 0 | 1969 | 29–17 | 63.0% | — | 1,743 | 0 | 0 |
| 25 | 1969 | 35–16 | 68.6% | — | 1,838 | 0 | 2 | 1970 | 26–29 | 47.3% | — | 1,665 | 0 | 0 |
| 26 | 1970 | 39–31 | 55.7% | — | 1,800 | 0 | 3 | 1971 | 15–19 | 44.1% | — | 1,717 | 0 | 0 |
| 27 | 1971 | 27–31 | 46.6% | — | 1,819 | 0 | 3 | 1972 | 8–20 | 28.6% | — | 1,525 | 0 | 0 |
| 28 | 1972 | 43–29 | 59.7% | — | 1,874 | 0 | 5 | 1973 | 0–4 | 0.0% | — | 1,500 | 0 | 0 |
| 29 | 1973 | 56–28 | 66.7% | #22 | 1,894 | 0 | 8 | 1974 | 3–2 | 60.0% | #228 | 1,553 | 0 | 0 |
| 30 | 1974 | 24–16 | 60.0% | #30 | 1,833 | 0 | 8 | 1975 | 0–1 | 0.0% | #308 | 1,550 | 0 | 0 |
| 31 | 1975 | 30–12 | 71.4% | #25 | 1,934 | 0 | 11 | 1976 | 2–2 | 50.0% | #211 | 1,575 | 0 | 0 |
| 32 | 1976 | 22–15 | 59.5% | #17 | 1,965 | 0 | 12 | — | — | — | — | — | — | — |
| 33 | 1977 | 35–21 | 62.5% | #26 | 1,828 | 0 | 13 | 1978 | 0–1 | 0.0% | #465 | 1,573 | 0 | 0 |
| 34 | 1978 | 15–16 | 48.4% | #68 | 1,769 | 0 | 13 | — | — | — | — | — | — | — |
| 35 | 1979 | 17–16 | 51.5% | #76 | 1,789 | 0 | 13 | — | — | — | — | — | — | — |
| 36 | 1980 | 11–13 | 45.8% | #140 | 1,675 | 0 | 13 | 1981 | 0–1 | 0.0% | — | 1,555 | 0 | 0 |
| 37 | 1981 | 0–5 | 0.0% | — | 1,599 | 0 | 13 | 1982 | 0–1 | 0.0% | — | 1,542 | 0 | 0 |
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 | Mark Cox | Jim Osborne | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 23 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1968 | 19 | 12 | 31 | 61.3% | 4 | 3 | 7 | 57.1% | 11 | 8 | 19 | 57.9% | 1 | 1 | 2 | 50.0% |
| 24 | 1968 | 24 | 11 | 35 | 68.6% | 18 | 8 | 26 | 69.2% | 6 | 2 | 8 | 75.0% | 4 | 2 | 6 | 66.7% | 1969 | 8 | 5 | 13 | 61.5% | 7 | 4 | 11 | 63.6% | 8 | 5 | 13 | 61.5% | 6 | 3 | 9 | 66.7% |
| 25 | 1969 | 11 | 5 | 16 | 68.8% | 12 | 6 | 18 | 66.7% | 4 | 2 | 6 | 66.7% | 8 | 3 | 11 | 72.7% | 1970 | 16 | 12 | 28 | 57.1% | 5 | 8 | 13 | 38.5% | 4 | 5 | 9 | 44.4% | 1 | 4 | 5 | 20.0% |
| 26 | 1970 | 10 | 9 | 19 | 52.6% | 14 | 6 | 20 | 70.0% | 12 | 9 | 21 | 57.1% | 3 | 7 | 10 | 30.0% | 1971 | 7 | 10 | 17 | 41.2% | 2 | 4 | 6 | 33.3% | 4 | 2 | 6 | 66.7% | 2 | 3 | 5 | 40.0% |
| 27 | 1971 | 9 | 11 | 20 | 45.0% | 8 | 7 | 15 | 53.3% | 5 | 6 | 11 | 45.5% | 5 | 7 | 12 | 41.7% | 1972 | 3 | 6 | 9 | 33.3% | 1 | 5 | 6 | 16.7% | 0 | 3 | 3 | 0.0% | 4 | 6 | 10 | 40.0% |
| 28 | 1972 | 14 | 9 | 23 | 60.9% | 8 | 5 | 13 | 61.5% | 2 | 1 | 3 | 66.7% | 19 | 14 | 33 | 57.6% | 1973 | 0 | 4 | 4 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 1973 | 11 | 4 | 15 | 73.3% | 10 | 11 | 21 | 47.6% | 10 | 2 | 12 | 83.3% | 25 | 11 | 36 | 69.4% | 1974 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 2 | 1 | 3 | 66.7% |
| 30 | 1974 | 8 | 4 | 12 | 66.7% | 1 | 2 | 3 | 33.3% | 2 | 2 | 4 | 50.0% | 13 | 8 | 21 | 61.9% | 1975 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 1975 | 3 | 2 | 5 | 60.0% | 3 | 3 | 6 | 50.0% | 2 | 1 | 3 | 66.7% | 22 | 6 | 28 | 78.6% | 1976 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 32 | 1976 | 9 | 2 | 11 | 81.8% | 5 | 4 | 9 | 55.6% | 2 | 2 | 4 | 50.0% | 6 | 7 | 13 | 46.2% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 33 | 1977 | 8 | 8 | 16 | 50.0% | 5 | 5 | 10 | 50.0% | 8 | 2 | 10 | 80.0% | 14 | 6 | 20 | 70.0% | 1978 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 34 | 1978 | 5 | 4 | 9 | 55.6% | 2 | 1 | 3 | 66.7% | 1 | 2 | 3 | 33.3% | 7 | 9 | 16 | 43.8% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 35 | 1979 | 9 | 8 | 17 | 52.9% | 1 | 2 | 3 | 33.3% | 4 | 3 | 7 | 57.1% | 3 | 3 | 6 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 36 | 1980 | 5 | 5 | 10 | 50.0% | 2 | 3 | 5 | 40.0% | 2 | 2 | 4 | 50.0% | 2 | 3 | 5 | 40.0% | 1981 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 37 | 1981 | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | 1982 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 126 | 83 | 209 | 60.3% | 89 | 65 | 154 | 57.8% | 60 | 38 | 98 | 61.2% | 131 | 86 | 217 | 60.4% | — | 55 | 55 | 110 | 50.0% | 19 | 24 | 43 | 44.2% | 27 | 23 | 50 | 54.0% | 17 | 19 | 36 | 47.2% |
Seasons are aligned by the age each player spent most of that calendar year. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. 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 | Mark Cox | Jim Osborne | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 23 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1968 | 1634 | 115.0 | — | — | — | — | +72 | -103 | -46 | 57.0% | +0.47 | 7–9 (44%) | — | — | -0.30 |
| 24 | 1968 | 1715 | 125.1 | — | — | — | — | +101 | -20 | -76 | 64.9% | +1.14 | 9–9 (50%) | — | — | +2.87 | 1969 | 1744 | 126.2 | — | — | — | — | +78 | -107 | -67 | 58.3% | +0.69 | 8–2 (80%) | — | — | +1.41 |
| 25 | 1969 | 1839 | 129.2 | — | — | — | — | +75 | -68 | -126 | 60.3% | +0.67 | 12–5 (71%) | — | — | +4.09 | 1970 | 1665 | 122.6 | — | — | — | — | +52 | -115 | +4 | 46.3% | -0.07 | 9–10 (47%) | 4–3 (57%) | — | +2.54 |
| 26 | 1970 | 1800 | 135.6 | — | — | — | — | -58 | +55 | +20 | 55.8% | +0.34 | 9–10 (47%) | 2–6 (25%) | — | -1.59 | 1971 | 1717 | 116.9 | — | — | — | — | -83 | -182 | +67 | 49.3% | -0.23 | 1–3 (25%) | 9–7 (56%) | — | +0.99 |
| 27 | 1971 | 1819 | 144.9 | — | — | — | — | -45 | +46 | -3 | 47.1% | -0.09 | 6–6 (50%) | 13–13 (50%) | — | -7.37 | 1972 | 1525 | 122.7 | — | — | — | — | +64 | -28 | +142 | 38.9% | -0.29 | 1–10 (9%) | 1–12 (8%) | — | +1.15 |
| 28 | 1972 | 1874 | 146.7 | — | — | — | — | -12 | +65 | -36 | 56.3% | +0.44 | 18–12 (60%) | 15–11 (58%) | — | -2.93 | 1973 | 1501 | 104.3 | — | — | — | — | +40 | — | — | 11.1% | -1.67 | 0–1 | 1–2 (33%) | — | -0.09 |
| 29 | 1973 | 1894 | 146.3 | — | — | — | — | +68 | -87 | +21 | 61.9% | +0.79 | 18–9 (67%) | 14–12 (54%) | — | -0.98 | 1974 | 1553 | 112.6 | — | — | — | — | +29 | — | — | 58.3% | +0.42 | 1–1 | 2–1 (67%) | — | +0.21 |
| 30 | 1974 | 1833 | 142.2 | — | — | — | — | +74 | -51 | +60 | 60.8% | +0.62 | 3–7 (30%) | 14–9 (61%) | — | -0.76 | 1975 | 1550 | 104.5 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | -0.16 |
| 31 | 1975 | 1934 | 154.1 | — | — | — | — | +99 | -157 | -28 | 66.7% | +1.39 | 6–3 (67%) | 4–6 (40%) | — | -0.83 | 1976 | 1576 | 112.5 | — | — | — | — | +12 | — | — | 50.0% | +0.17 | 2–2 (50%) | — | — | -0.11 |
| 32 | 1976 | 1965 | 146.6 | — | — | — | — | +85 | -198 | -95 | 52.6% | -0.01 | 12–4 (75%) | 8–6 (57%) | — | -3.40 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 33 | 1977 | 1828 | 146.3 | — | — | — | — | +95 | -114 | +115 | 57.0% | +0.45 | 11–3 (79%) | 7–11 (39%) | — | -0.20 | 1978 | 1574 | 109.5 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | -0.24 |
| 34 | 1978 | 1770 | 142.4 | — | — | — | — | +56 | -48 | +123 | 50.0% | +0.15 | 3–5 (38%) | 5–1 (83%) | — | -1.06 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 35 | 1979 | 1790 | 141.2 | — | — | — | — | +18 | -86 | +110 | 53.0% | +0.22 | 3–6 (33%) | 6–6 (50%) | — | -1.30 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 36 | 1980 | 1676 | 120.6 | — | — | — | — | +49 | -18 | +194 | 46.8% | -0.26 | 4–4 (50%) | 7–6 (54%) | — | +1.71 | 1981 | 1556 | 95.7 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | +0.19 |
| 37 | 1981 | 1599 | 106.1 | — | — | — | — | — | — | — | 21.4% | -1.79 | 0–2 | 1–1 | — | -0.05 | 1982 | 1543 | 98.8 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | +0.07 |
| Career | — | 2023 | 146.1 | — | — | — | — | +46 | -36 | +21 | 57.2% | +0.50 | 114–85 (57%) | 96–88 (52%) | 101.1 | -1.75 | — | 1812 | 123.5 | — | — | — | — | +39 | -108 | -18 | 49.9% | +0.11 | 29–38 (43%) | 17–25 (40%) | 93.8 | +2.40 |
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 |
|---|---|---|---|---|---|
| Tom Okker | 6 | 11 | 17 | Oct 25, 1979 | H2H |
| Cliff Drysdale | 6 | 10 | 16 | Mar 26, 1977 | H2H |
| Stan Smith | 6 | 7 | 13 | Oct 27, 1979 | H2H |
| Marty Riessen | 4 | 9 | 13 | Mar 13, 1976 | H2H |
| Jan Kodes | 6 | 6 | 12 | Nov 26, 1977 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Peter Curtis | 4 | 5 | 9 | Mar 31, 1971 | H2H |
| Stan Smith | 1 | 7 | 8 | Mar 11, 1972 | H2H |
| Arthur Ashe | 1 | 7 | 8 | Sep 12, 1971 | H2H |
| Thomaz Koch | 2 | 4 | 6 | Mar 5, 1973 | H2H |
| Onny Parun | 4 | 2 | 6 | Mar 5, 1973 | H2H |