Mark Cox
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Tom Okker | 6 | 11 | 17 | Oct 25, 1979 | H2H |
| Cliff Drysdale | 6 | 11 | 17 | Mar 26, 1977 | H2H |
| Stan Smith | 6 | 7 | 13 | Oct 27, 1979 | — |
| Marty Riessen | 4 | 9 | 13 | Mar 13, 1976 | H2H |
| Jan Kodes | 6 | 6 | 12 | Nov 26, 1977 | H2H |
H2H data updated: 2026-08-15 02:40 UTC
Mark Cox vs Robert Kreiss H2H: 1-0
Mark Cox holds a 1–0 lead over Robert Kreiss in their ATP head-to-head. Across 1 main-draw meeting, Mark Cox leads 1–0 on clay. Most recently, Mark Cox won the 1975 US Open round of 128 6-2 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.
H2H Match Log
| Winner | Score | Loser | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Mark Cox | 6-2 6-4 | Robert Kreiss | Match data | Aug 29, 1975* | R128 | US Open | Grand Slam | Clay |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mark Cox | #486 | #12 | 0 | 2,012 | 408 | 274 | 59.8% | 0 | 0 | 0 | 0 | 15 | 15 |
| Robert Kreiss | — | — | — | 1,559 | — | — | — | 0 | 0 | 0 | 0 | 0 | 0 |
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.
| Mark Cox | Robert Kreiss | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 52–23 | 69.3% | — | 1,716 | 0 | 2 | — | — | — | — | — | — | — |
| 1969 | 35–16 | 68.6% | — | 1,838 | 0 | 4 | — | — | — | — | — | — | — |
| 1970 | 39–31 | 55.7% | — | 1,799 | 0 | 5 | — | — | — | — | — | — | — |
| 1971 | 27–31 | 46.6% | — | 1,819 | 0 | 5 | — | — | — | — | — | — | — |
| 1972 | 43–29 | 59.7% | — | 1,873 | 0 | 7 | — | — | — | — | — | — | — |
| 1973 | 56–28 | 66.7% | #22 | 1,890 | 0 | 10 | — | — | — | — | — | — | — |
| 1974 | 25–17 | 59.5% | #30 | 1,830 | 0 | 10 | — | — | — | — | — | — | — |
| 1975 | 31–13 | 70.5% | #25 | 1,917 | 0 | 13 | — | — | — | — | — | — | — |
| 1976 | 22–15 | 59.5% | #17 | 1,958 | 0 | 14 | — | — | — | — | — | — | — |
| 1977 | 35–21 | 62.5% | #26 | 1,826 | 0 | 15 | — | — | — | — | — | — | — |
| 1978 | 15–16 | 48.4% | #68 | 1,767 | 0 | 15 | — | — | — | — | — | — | — |
| 1979 | 17–16 | 51.5% | #76 | 1,789 | 0 | 15 | — | — | — | — | — | — | — |
| 1980 | 11–13 | 45.8% | #140 | 1,675 | 0 | 15 | — | — | — | — | — | — | — |
| 1981 | 0–5 | 0.0% | — | 1,598 | 0 | 15 | — | — | — | — | — | — | — |
Surface Results by Career Season
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.
| Mark Cox | Robert Kreiss | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 24 | 11 | 35 | 68.6% | 18 | 8 | 26 | 69.2% | 6 | 2 | 8 | 75.0% | 4 | 2 | 6 | 66.7% | 1968 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 1969 | 11 | 5 | 16 | 68.8% | 12 | 6 | 18 | 66.7% | 4 | 2 | 6 | 66.7% | 8 | 3 | 11 | 72.7% | 1969 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1970 | 10 | 9 | 19 | 52.6% | 14 | 6 | 20 | 70.0% | 12 | 9 | 21 | 57.1% | 3 | 7 | 10 | 30.0% | 1970 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1971 | 9 | 11 | 20 | 45.0% | 8 | 7 | 15 | 53.3% | 5 | 6 | 11 | 45.5% | 5 | 7 | 12 | 41.7% | 1971 | 1 | 4 | 5 | 20.0% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1972 | 14 | 9 | 23 | 60.9% | 8 | 5 | 13 | 61.5% | 2 | 1 | 3 | 66.7% | 19 | 14 | 33 | 57.6% | 1972 | 1 | 0 | 1 | 100.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 3 | 3 | 0.0% |
| 1973 | 11 | 4 | 15 | 73.3% | 10 | 11 | 21 | 47.6% | 10 | 2 | 12 | 83.3% | 25 | 11 | 36 | 69.4% | 1973 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 2 | 3 | 5 | 40.0% |
| 1974 | 9 | 5 | 14 | 64.3% | 1 | 2 | 3 | 33.3% | 2 | 2 | 4 | 50.0% | 13 | 8 | 21 | 61.9% | 1974 | 2 | 5 | 7 | 28.6% | 0 | 5 | 5 | 0.0% | 1 | 2 | 3 | 33.3% | 3 | 4 | 7 | 42.9% |
| 1975 | 4 | 3 | 7 | 57.1% | 3 | 3 | 6 | 50.0% | 2 | 1 | 3 | 66.7% | 22 | 6 | 28 | 78.6% | 1975 | 0 | 3 | 3 | 0.0% | 2 | 6 | 8 | 25.0% | 0 | 2 | 2 | 0.0% | 5 | 7 | 12 | 41.7% |
| 1976 | 9 | 2 | 11 | 81.8% | 5 | 4 | 9 | 55.6% | 2 | 2 | 4 | 50.0% | 6 | 7 | 13 | 46.2% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1977 | 8 | 8 | 16 | 50.0% | 5 | 5 | 10 | 50.0% | 8 | 2 | 10 | 80.0% | 14 | 6 | 20 | 70.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1978 | 5 | 4 | 9 | 55.6% | 2 | 1 | 3 | 66.7% | 1 | 2 | 3 | 33.3% | 7 | 9 | 16 | 43.8% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1979 | 9 | 8 | 17 | 52.9% | 1 | 2 | 3 | 33.3% | 4 | 3 | 7 | 57.1% | 3 | 3 | 6 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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% | 0 | 2 | 2 | 0.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 128 | 85 | 213 | 60.1% | 89 | 65 | 154 | 57.8% | 60 | 38 | 98 | 61.2% | 131 | 86 | 217 | 60.4% | Career | 4 | 14 | 18 | 22.2% | 2 | 13 | 15 | 13.3% | 1 | 8 | 9 | 11.1% | 10 | 17 | 27 | 37.0% |
Advanced Statistics Comparison by Career Season
Rows are aligned in career order because complete birth data is unavailable. 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.
| Mark Cox | Robert Kreiss | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Schedule |
| 1968 | 1717 | 125.3 | — | — | — | — | +96 | -19 | -76 | 64.9% | +1.14 | 9–9 (50%) | — | +2.86 | 1968 | 1488 | 101.1 | — | — | — | — | — | — | — | 33.3% | -0.67 | 0–1 | — | -0.09 |
| 1969 | 1838 | 129.4 | — | — | — | — | +78 | -68 | -124 | 60.3% | +0.67 | 12–5 (71%) | — | +4.01 | 1969 | 1474 | 99.6 | — | — | — | — | — | — | — | 33.3% | -1.33 | 0–1 | — | +0.08 |
| 1970 | 1800 | 135.6 | — | — | — | — | -59 | +56 | +21 | 55.8% | +0.34 | 9–10 (47%) | 2–6 (25%) | -1.21 | 1970 | 1470 | 97.7 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | -0.26 |
| 1971 | 1819 | 145.0 | — | — | — | — | -46 | +46 | -4 | 47.1% | -0.09 | 6–6 (50%) | 13–13 (50%) | -7.08 | 1971 | 1451 | 99.2 | — | — | — | — | +54 | — | — | 23.1% | -2.00 | 0–1 | 1–1 | +0.26 |
| 1972 | 1873 | 146.9 | — | — | — | — | -12 | +65 | -35 | 56.3% | +0.44 | 18–12 (60%) | 15–11 (58%) | -2.82 | 1972 | 1440 | 107.3 | — | — | — | — | +71 | — | — | 33.3% | -1.67 | 0–2 | 2–0 | +0.43 |
| 1973 | 1890 | 146.5 | — | — | — | — | +76 | -81 | +24 | 61.9% | +0.79 | 18–9 (67%) | 14–12 (54%) | -0.94 | 1973 | 1458 | 113.5 | — | — | — | — | +82 | — | — | 35.0% | -0.90 | 1–3 (25%) | 1–4 (20%) | -0.11 |
| 1974 | 1830 | 142.2 | — | — | — | — | +65 | -47 | +64 | 60.2% | +0.63 | 4–8 (33%) | 14–10 (58%) | -0.94 | 1974 | 1489 | 120.5 | — | — | — | — | +68 | -34 | -21 | 34.5% | -0.88 | 3–5 (38%) | 1–4 (20%) | +0.38 |
| 1975 | 1918 | 153.0 | — | — | — | — | +87 | -140 | -12 | 65.4% | +1.28 | 7–3 (70%) | 4–7 (36%) | -0.70 | 1975 | 1481 | 124.5 | — | — | — | — | +58 | -35 | — | 36.1% | -1.07 | 2–6 (25%) | 3–3 (50%) | +0.73 |
| 1976 | 1958 | 146.2 | — | — | — | — | +78 | -190 | -90 | 52.6% | -0.01 | 12–4 (75%) | 8–6 (57%) | -3.21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1977 | 1826 | 146.4 | — | — | — | — | +92 | -113 | +113 | 57.0% | +0.45 | 11–3 (79%) | 7–11 (39%) | -0.41 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1978 | 1768 | 141.9 | — | — | — | — | +55 | -47 | +123 | 50.0% | +0.15 | 3–5 (38%) | 5–1 (83%) | -1.03 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1979 | 1789 | 140.9 | — | — | — | — | +17 | -86 | +110 | 53.0% | +0.22 | 3–6 (33%) | 6–6 (50%) | -1.31 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1980 | 1675 | 120.8 | — | — | — | — | +50 | -19 | +193 | 46.8% | -0.26 | 4–4 (50%) | 7–6 (54%) | +1.71 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1981 | 1599 | 105.9 | — | — | — | — | — | — | — | 21.4% | -1.79 | 0–2 | 1–1 | -0.05 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 2013 | 146.0 | — | — | — | — | +44 | -33 | +22 | 57.1% | +0.50 | 116–86 (57%) | 96–90 (52%) | -1.63 | Career | 1559 | 120.7 | — | — | — | — | +65 | -35 | -21 | 33.7% | -1.12 | 6–19 (24%) | 8–12 (40%) | +2.06 |
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.
Robert Kreiss
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Roscoe Tanner | 0 | 3 | 3 | Jul 24, 1975 | — |
| Ross Case | 0 | 3 | 3 | Jun 25, 1975 | — |
| Jimmy Connors | 0 | 3 | 3 | Jun 18, 1975 | — |
| Wojtek Fibak | 0 | 3 | 3 | Mar 16, 1975 | — |
| Jan Kodes | 1 | 2 | 3 | Feb 13, 1975 | — |