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: 2026-09-01 00:00 UTC
Mark Cox holds a 4–2 lead over Tom Edlefsen in their ATP head-to-head. Across 6 main-draw meetings, Mark Cox leads 2–1 on hard courts, while they are tied 1–1 on carpet. Most recently, Mark Cox won the 1975 Toronto Indoor Wct round of 32 6-0 6-4.
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 | 6-0 6-4 | Tom Edlefsen | Match data | Feb 13, 1975* | R32 | Toronto Indoor Wct | ATP 250 | Carpet |
| Tom Edlefsen | 6-1 7-6(3) | Mark Cox | Match data | Mar 6, 1974* | R32 | Barcelona Wct | ATP 250 | Carpet |
| Tom Edlefsen | 7-5 6-3 | Mark Cox | Match data | Apr 4, 1969* | R16 | San Juan | ATP 250 | Hard |
| Mark Cox | 7-5 7-5 | Tom Edlefsen | Match data | Jan 31, 1969* | QF | Omaha | ATP 250 | Hard |
| Mark Cox | 6-4 6-2 | Tom Edlefsen | Match data | Jul 13, 1968* | QF | Dublin | ATP 250 | Grass |
| Mark Cox | 6-3 6-4 | Tom Edlefsen | Match data | Apr 6, 1968* | QF | San Juan | 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 |
| Tom Edlefsen | #172 | #94 | 0 | 1,739 | 109 | 145 | 42.9% | 0 | 0 | 0 | 0 | 2 | 2 |
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 | Tom Edlefsen | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 24 | 1968 | 52–23 | 69.3% | — | 1,715 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | 1969 | 35–16 | 68.6% | — | 1,838 | 0 | 2 | — | — | — | — | — | — | — |
| 26 | 1970 | 39–31 | 55.7% | — | 1,800 | 0 | 3 | 1968 | 19–22 | 46.3% | — | 1,528 | 0 | 0 |
| 27 | 1971 | 27–31 | 46.6% | — | 1,819 | 0 | 3 | 1969 | 26–25 | 51.0% | — | 1,597 | 0 | 0 |
| 28 | 1972 | 43–29 | 59.7% | — | 1,874 | 0 | 5 | 1970 | 16–19 | 45.7% | — | 1,582 | 0 | 0 |
| 29 | 1973 | 56–28 | 66.7% | #22 | 1,894 | 0 | 8 | 1971 | 21–19 | 52.5% | — | 1,627 | 0 | 1 |
| 30 | 1974 | 24–16 | 60.0% | #30 | 1,833 | 0 | 8 | 1972 | 10–10 | 50.0% | — | 1,718 | 0 | 2 |
| 31 | 1975 | 30–12 | 71.4% | #25 | 1,934 | 0 | 11 | 1973 | 9–25 | 26.5% | #111 | 1,570 | 0 | 2 |
| 32 | 1976 | 22–15 | 59.5% | #17 | 1,965 | 0 | 12 | 1974 | 6–16 | 27.3% | #118 | 1,508 | 0 | 2 |
| 33 | 1977 | 35–21 | 62.5% | #26 | 1,828 | 0 | 13 | 1975 | 2–9 | 18.2% | #172 | 1,511 | 0 | 2 |
| 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 | — | — | — | — | — | — | — |
| 37 | 1981 | 0–5 | 0.0% | — | 1,599 | 0 | 13 | — | — | — | — | — | — | — |
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 | Tom Edlefsen | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 24 | 1968 | 24 | 11 | 35 | 68.6% | 18 | 8 | 26 | 69.2% | 6 | 2 | 8 | 75.0% | 4 | 2 | 6 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 1969 | 11 | 5 | 16 | 68.8% | 12 | 6 | 18 | 66.7% | 4 | 2 | 6 | 66.7% | 8 | 3 | 11 | 72.7% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 1970 | 10 | 9 | 19 | 52.6% | 14 | 6 | 20 | 70.0% | 12 | 9 | 21 | 57.1% | 3 | 7 | 10 | 30.0% | 1968 | 6 | 8 | 14 | 42.9% | 5 | 8 | 13 | 38.5% | 7 | 5 | 12 | 58.3% | 1 | 1 | 2 | 50.0% |
| 27 | 1971 | 9 | 11 | 20 | 45.0% | 8 | 7 | 15 | 53.3% | 5 | 6 | 11 | 45.5% | 5 | 7 | 12 | 41.7% | 1969 | 7 | 7 | 14 | 50.0% | 8 | 8 | 16 | 50.0% | 9 | 7 | 16 | 56.3% | 2 | 3 | 5 | 40.0% |
| 28 | 1972 | 14 | 9 | 23 | 60.9% | 8 | 5 | 13 | 61.5% | 2 | 1 | 3 | 66.7% | 19 | 14 | 33 | 57.6% | 1970 | 7 | 9 | 16 | 43.8% | 7 | 6 | 13 | 53.8% | 0 | 2 | 2 | 0.0% | 2 | 2 | 4 | 50.0% |
| 29 | 1973 | 11 | 4 | 15 | 73.3% | 10 | 11 | 21 | 47.6% | 10 | 2 | 12 | 83.3% | 25 | 11 | 36 | 69.4% | 1971 | 14 | 12 | 26 | 53.8% | 6 | 4 | 10 | 60.0% | 0 | 1 | 1 | 0.0% | 1 | 2 | 3 | 33.3% |
| 30 | 1974 | 8 | 4 | 12 | 66.7% | 1 | 2 | 3 | 33.3% | 2 | 2 | 4 | 50.0% | 13 | 8 | 21 | 61.9% | 1972 | 3 | 5 | 8 | 37.5% | — | — | — | — | — | — | — | — | 7 | 5 | 12 | 58.3% |
| 31 | 1975 | 3 | 2 | 5 | 60.0% | 3 | 3 | 6 | 50.0% | 2 | 1 | 3 | 66.7% | 22 | 6 | 28 | 78.6% | 1973 | 5 | 9 | 14 | 35.7% | 3 | 6 | 9 | 33.3% | 0 | 2 | 2 | 0.0% | 1 | 8 | 9 | 11.1% |
| 32 | 1976 | 9 | 2 | 11 | 81.8% | 5 | 4 | 9 | 55.6% | 2 | 2 | 4 | 50.0% | 6 | 7 | 13 | 46.2% | 1974 | 1 | 4 | 5 | 20.0% | 1 | 4 | 5 | 20.0% | 0 | 1 | 1 | 0.0% | 4 | 7 | 11 | 36.4% |
| 33 | 1977 | 8 | 8 | 16 | 50.0% | 5 | 5 | 10 | 50.0% | 8 | 2 | 10 | 80.0% | 14 | 6 | 20 | 70.0% | 1975 | 2 | 2 | 4 | 50.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 6 | 6 | 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% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 37 | 1981 | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 126 | 83 | 209 | 60.3% | 89 | 65 | 154 | 57.8% | 60 | 38 | 98 | 61.2% | 131 | 86 | 217 | 60.4% | — | 45 | 56 | 101 | 44.6% | 30 | 37 | 67 | 44.8% | 16 | 18 | 34 | 47.1% | 18 | 34 | 52 | 34.6% |
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 | Tom Edlefsen | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 24 | 1968 | 1715 | 125.1 | — | — | — | — | +101 | -20 | -76 | 64.9% | +1.14 | 9–9 (50%) | — | — | +2.87 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 1969 | 1839 | 129.2 | — | — | — | — | +75 | -68 | -126 | 60.3% | +0.67 | 12–5 (71%) | — | — | +4.09 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 1970 | 1800 | 135.6 | — | — | — | — | -58 | +55 | +20 | 55.8% | +0.34 | 9–10 (47%) | 2–6 (25%) | — | -1.59 | 1968 | 1529 | 107.7 | — | — | — | — | -11 | -39 | +57 | 47.6% | -0.09 | 5–8 (38%) | — | — | +1.20 |
| 27 | 1971 | 1819 | 144.9 | — | — | — | — | -45 | +46 | -3 | 47.1% | -0.09 | 6–6 (50%) | 13–13 (50%) | — | -7.37 | 1969 | 1597 | 119.3 | — | — | — | — | +6 | -63 | +29 | 50.0% | +0.15 | 8–9 (47%) | — | — | +1.82 |
| 28 | 1972 | 1874 | 146.7 | — | — | — | — | -12 | +65 | -36 | 56.3% | +0.44 | 18–12 (60%) | 15–11 (58%) | — | -2.93 | 1970 | 1582 | 114.6 | — | — | — | — | +30 | -31 | — | 47.5% | +0.20 | 4–6 (40%) | 0–2 | — | +3.75 |
| 29 | 1973 | 1894 | 146.3 | — | — | — | — | +68 | -87 | +21 | 61.9% | +0.79 | 18–9 (67%) | 14–12 (54%) | — | -0.98 | 1971 | 1627 | 119.4 | — | — | — | — | -1 | -10 | — | 51.6% | +0.18 | 9–8 (53%) | 7–6 (54%) | — | +3.42 |
| 30 | 1974 | 1833 | 142.2 | — | — | — | — | +74 | -51 | +60 | 60.8% | +0.62 | 3–7 (30%) | 14–9 (61%) | — | -0.76 | 1972 | 1718 | 125.5 | — | — | — | — | -25 | — | — | 45.1% | -0.55 | 8–3 (73%) | 6–4 (60%) | — | -1.16 |
| 31 | 1975 | 1934 | 154.1 | — | — | — | — | +99 | -157 | -28 | 66.7% | +1.39 | 6–3 (67%) | 4–6 (40%) | — | -0.83 | 1973 | 1570 | 118.3 | — | — | — | — | -6 | +52 | — | 30.4% | -1.11 | 6–7 (46%) | 3–7 (30%) | — | -0.99 |
| 32 | 1976 | 1965 | 146.6 | — | — | — | — | +85 | -198 | -95 | 52.6% | -0.01 | 12–4 (75%) | 8–6 (57%) | — | -3.40 | 1974 | 1509 | 109.4 | — | — | — | — | +36 | +61 | — | 32.7% | -1.49 | 2–3 (40%) | 5–3 (63%) | — | +0.86 |
| 33 | 1977 | 1828 | 146.3 | — | — | — | — | +95 | -114 | +115 | 57.0% | +0.45 | 11–3 (79%) | 7–11 (39%) | — | -0.20 | 1975 | 1512 | 118.2 | — | — | — | — | +16 | — | — | 24.0% | -1.88 | 1–2 (33%) | — | — | -0.84 |
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 37 | 1981 | 1599 | 106.1 | — | — | — | — | — | — | — | 21.4% | -1.79 | 0–2 | 1–1 | — | -0.05 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 2023 | 146.1 | — | — | — | — | +46 | -36 | +21 | 57.2% | +0.50 | 114–85 (57%) | 96–88 (52%) | 101.1 | -1.75 | — | 1739 | 120.0 | — | — | — | — | +4 | -19 | +41 | 44.1% | -0.32 | 43–46 (48%) | 21–22 (49%) | 102.7 | +3.24 |
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 |