H2H data updated: 2026-07-14 02:15 UTC
T. Koch vs D. Ralston H2H: 1-0
Compare the head-to-head record, career totals, season-by-season performance, and match log for T. Koch vs D. Ralston.
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BRA
Age 81
Left-Handed
H2H
1
–
0
1 main draw meetings
USA
Right-Handed
188 cm / 6'2"
Career Comparison
| Metric | T. Koch | D. Ralston |
|---|---|---|
| Peak Ranking | #24 | #115 |
| Peak Points | 0 | 0 |
| Peak Elo | 1,873 | 1,954 |
| Singles W-L | 200–157 | 157–136 |
| Win % | 56.0% | 53.6% |
| Grand Slam titles | 0 | 0 |
| Masters 1000 titles | 0 | 0 |
| ATP Finals titles | 0 | 0 |
| ATP 500 titles | 0 | 0 |
| ATP 250 titles | 6 | 6 |
| Total titles | 6 | 6 |
| Age | T. Koch | D. Ralston | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | W-L | Win % | Rank | Elo | GS | Titles | Season | W-L | Win % | Rank | Elo | GS | Titles | |
| 23 | 1968 | 29–17 | 63.0% | — | 1,677 | 0 | 1 | — | — | — | — | — | — | — |
| 24 | 1969 | 34–18 | 65.4% | — | 1,799 | 0 | 4 | — | — | — | — | — | — | — |
| 25 | 1970 | 18–15 | 54.5% | — | 1,786 | 0 | 4 | 1968 | 48–25 | 65.8% | — | 1,683 | 0 | 5 |
| 26 | 1971 | 24–13 | 64.9% | — | 1,717 | 0 | 5 | 1969 | 28–24 | 53.8% | — | 1,790 | 0 | 5 |
| 27 | 1972 | 19–16 | 54.3% | — | 1,717 | 0 | 6 | 1970 | 41–28 | 59.4% | — | 1,893 | 0 | 6 |
| 28 | 1973 | 5–6 | 45.5% | #204 | 1,704 | 0 | 6 | 1971 | 27–21 | 56.2% | — | 1,861 | 0 | 6 |
| 29 | 1974 | 22–12 | 64.7% | #24 | 1,861 | 0 | 6 | 1972 | 2–8 | 20.0% | — | 1,736 | 0 | 6 |
| 30 | 1975 | 20–22 | 47.6% | #62 | 1,743 | 0 | 6 | 1973 | 1–6 | 14.3% | #219 | 1,666 | 0 | 6 |
| 31 | 1976 | 15–8 | 65.2% | #58 | 1,803 | 0 | 6 | 1974 | 3–5 | 37.5% | #147 | 1,680 | 0 | 6 |
| 32 | 1977 | 1–6 | 14.3% | #263 | 1,706 | 0 | 6 | 1975 | 2–5 | 28.6% | #187 | 1,631 | 0 | 6 |
| 33 | — | — | — | — | — | — | — | 1976 | 1–9 | 10.0% | #248 | 1,545 | 0 | 6 |
| 34 | 1979 | 4–7 | 36.4% | #85 | 1,658 | 0 | 6 | 1977 | 1–2 | 33.3% | #294 | 1,563 | 0 | 6 |
| 35 | 1980 | 7–9 | 43.8% | #49 | 1,651 | 0 | 6 | 1978 | 0–1 | 0.0% | #287 | 1,557 | 0 | 6 |
| 36 | 1981 | 0–2 | 0.0% | #90 | 1,627 | 0 | 6 | — | — | — | — | — | — | — |
| 37 | 1982 | 1–5 | 16.7% | #240 | 1,592 | 0 | 6 | 1980 | 3–2 | 60.0% | — | 1,601 | 0 | 6 |
| 38 | 1983 | 1–1 | 50.0% | #185 | 1,583 | 0 | 6 | — | — | — | — | — | — | — |
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Sep 24, 1969* | Los Angeles | ATP 250 | R16 | Hard | T. Koch | 6-1 8-10 6-1 | D. Ralston | Match data |