H2H data updated: 2026-07-19 02:51 UTC
Onny Parun vs Willem Prinsloo H2H: 1-1
Onny Parun and Willem Prinsloo are tied 1–1 in their ATP head-to-head. Across 2 main-draw meetings, Onny Parun leads 1–0 on clay, while Willem Prinsloo leads 1–0 on hard courts. Most recently, Onny Parun won the 1977 US Open second round 3-6 6-0 6-1.
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NZL
Age 79
Right-Handed
188 cm / 6'2"
H2H
1
–
1
2 main draw meetings
RSA
Left-Handed
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Sep 4, 1977* | US Open | Grand Slam | R64 | Clay | Onny Parun | 3-6 6-0 6-1 | Willem Prinsloo | Match data |
| Nov 25, 1976* | Johannesburg - Wct | ATP 250 | R64 | Hard | Willem Prinsloo | 6-3 6-4 | Onny Parun | Match data |
* 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Onny Parun | #398 | #18 | 0 | 1,990 | 375 | 342 | 52.3% | 0 | 0 | 0 | 0 | 6 | 6 |
| Willem Prinsloo | #332 | #81 | 0 | 1,549 | 13 | 33 | 28.3% | 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.
| Age | Onny Parun | Willem Prinsloo | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 17 | — | — | — | — | — | — | — | 1971 | 1–1 | 50.0% | — | 1,516 | 0 | 0 |
| 18 | — | — | — | — | — | — | — | 1972 | 0–1 | 0.0% | — | 1,488 | 0 | 0 |
| 21 | 1968 | 13–16 | 44.8% | — | 1,561 | 0 | 0 | 1975 | 1–1 | 50.0% | #282 | 1,491 | 0 | 0 |
| 22 | 1969 | 13–22 | 37.1% | — | 1,581 | 0 | 0 | 1976 | 3–1 | 75.0% | #154 | 1,546 | 0 | 0 |
| 23 | 1970 | 19–21 | 47.5% | — | 1,586 | 0 | 0 | 1977 | 4–15 | 21.1% | #144 | 1,500 | 0 | 0 |
| 24 | 1971 | 26–24 | 52.0% | — | 1,689 | 0 | 0 | 1978 | 3–5 | 37.5% | #122 | 1,499 | 0 | 0 |
| 25 | 1972 | 39–36 | 52.0% | — | 1,703 | 0 | 0 | 1979 | 1–9 | 10.0% | #265 | 1,427 | 0 | 0 |
| 26 | 1973 | 49–43 | 53.3% | #40 | 1,731 | 0 | 1 | — | — | — | — | — | — | — |
| 27 | 1974 | 76–37 | 67.3% | #25 | 1,945 | 0 | 3 | — | — | — | — | — | — | — |
| 28 | 1975 | 65–31 | 67.7% | #26 | 1,889 | 0 | 4 | — | — | — | — | — | — | — |
| 29 | 1976 | 38–23 | 62.3% | #29 | 1,816 | 0 | 6 | — | — | — | — | — | — | — |
| 30 | 1977 | 13–27 | 32.5% | #149 | 1,624 | 0 | 6 | — | — | — | — | — | — | — |
| 31 | 1978 | 1–14 | 6.7% | #210 | 1,499 | 0 | 6 | — | — | — | — | — | — | — |
| 32 | 1979 | 3–15 | 16.7% | #214 | 1,426 | 0 | 6 | — | — | — | — | — | — | — |
| 33 | 1980 | 15–19 | 44.1% | #96 | 1,595 | 0 | 6 | — | — | — | — | — | — | — |
| 34 | 1981 | 5–13 | 27.8% | #99 | 1,535 | 0 | 6 | — | — | — | — | — | — | — |
| 35 | 1982 | 0–1 | 0.0% | #200 | 1,522 | 0 | 6 | — | — | — | — | — | — | — |