H2H data updated: 2026-07-14 14:15 UTC
T. Koch vs O. Parun H2H: 2-1
T. Koch holds a 2–1 lead over O. Parun in their ATP head-to-head. Across 3 main-draw meetings, they are tied 1–1 on carpet, while T. Koch leads 1–0 on hard courts. Most recently, T. Koch won the 1973 San Juan round-robin match 7-6 7-5.
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BRA
Age 81
Left-Handed
H2H
2
–
1
3 main draw meetings
NZL
Age 79
Right-Handed
188 cm / 6'2"
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Mar 5, 1973 | San Juan | ATP 250 | RR | Hard | T. Koch | 7-6 7-5 | O. Parun | Match data |
| Mar 2, 1972* | New York | ATP 250 | R32 | Carpet | O. Parun | 7-5 6-3 | T. Koch | Match data |
| Feb 10, 1972* | Des Moines | ATP 250 | R16 | Carpet | T. Koch | 6-4 6-1 | O. Parun | Match data |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
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 | T. Koch | O. Parun | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 21 | — | — | — | — | — | — | — | 1968 | 13–16 | 44.8% | — | 1,561 | 0 | 0 |
| 22 | — | — | — | — | — | — | — | 1969 | 13–22 | 37.1% | — | 1,581 | 0 | 0 |
| 23 | 1968 | 29–17 | 63.0% | — | 1,677 | 0 | 1 | 1970 | 19–21 | 47.5% | — | 1,586 | 0 | 0 |
| 24 | 1969 | 34–18 | 65.4% | — | 1,799 | 0 | 4 | 1971 | 26–24 | 52.0% | — | 1,689 | 0 | 0 |
| 25 | 1970 | 18–15 | 54.5% | — | 1,786 | 0 | 4 | 1972 | 39–36 | 52.0% | — | 1,703 | 0 | 0 |
| 26 | 1971 | 24–13 | 64.9% | — | 1,717 | 0 | 5 | 1973 | 49–43 | 53.3% | #40 | 1,731 | 0 | 1 |
| 27 | 1972 | 19–16 | 54.3% | — | 1,717 | 0 | 6 | 1974 | 76–37 | 67.3% | #25 | 1,945 | 0 | 3 |
| 28 | 1973 | 5–6 | 45.5% | #204 | 1,704 | 0 | 6 | 1975 | 65–31 | 67.7% | #26 | 1,889 | 0 | 4 |
| 29 | 1974 | 22–12 | 64.7% | #24 | 1,861 | 0 | 6 | 1976 | 38–23 | 62.3% | #29 | 1,816 | 0 | 6 |
| 30 | 1975 | 20–22 | 47.6% | #62 | 1,743 | 0 | 6 | 1977 | 13–27 | 32.5% | #149 | 1,624 | 0 | 6 |
| 31 | 1976 | 15–8 | 65.2% | #58 | 1,803 | 0 | 6 | 1978 | 1–14 | 6.7% | #210 | 1,499 | 0 | 6 |
| 32 | 1977 | 1–6 | 14.3% | #263 | 1,706 | 0 | 6 | 1979 | 3–15 | 16.7% | #214 | 1,426 | 0 | 6 |
| 33 | — | — | — | — | — | — | — | 1980 | 15–19 | 44.1% | #96 | 1,595 | 0 | 6 |
| 34 | 1979 | 4–7 | 36.4% | #85 | 1,658 | 0 | 6 | 1981 | 5–13 | 27.8% | #99 | 1,535 | 0 | 6 |
| 35 | 1980 | 7–9 | 43.8% | #49 | 1,651 | 0 | 6 | 1982 | 0–1 | 0.0% | #200 | 1,522 | 0 | 6 |
| 36 | 1981 | 0–2 | 0.0% | #90 | 1,627 | 0 | 6 | — | — | — | — | — | — | — |
| 37 | 1982 | 1–5 | 16.7% | #240 | 1,592 | 0 | 6 | — | — | — | — | — | — | — |
| 38 | 1983 | 1–1 | 50.0% | #185 | 1,583 | 0 | 6 | — | — | — | — | — | — | — |