H2H data updated: 2026-07-18 02:15 UTC
Jeff Simpson vs Onny Parun H2H: 0-2
Onny Parun holds a 2–0 lead over Jeff Simpson in their ATP head-to-head. Across 2 main-draw meetings, Onny Parun leads 2–0 on grass. Most recently, Onny Parun won the 1975 Auckland semifinal 6-3 6-3 6-3.
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NZL
Age 75
Right-Handed
H2H
0
–
2
2 main draw meetings
NZL
Age 79
Right-Handed
188 cm / 6'2"
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Jan 17, 1975* | Auckland | ATP 250 | SF | Grass | Onny Parun | 6-3 6-3 6-3 | Jeff Simpson | Match data |
| Sep 4, 1973* | US Open | Grand Slam | R32 | Grass | Onny Parun | 3-6 6-3 7-6 6-1 | Jeff Simpson | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jeff Simpson | #735 | #66 | 0 | 1,598 | 47 | 94 | 33.3% | 0 | 0 | 0 | 0 | 0 | 0 |
| Onny Parun | #398 | #18 | 0 | 1,990 | 375 | 342 | 52.3% | 0 | 0 | 0 | 0 | 6 | 6 |
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 | Jeff Simpson | Onny Parun | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 17 | 1968 | 0–1 | 0.0% | — | 1,474 | 0 | 0 | — | — | — | — | — | — | — |
| 18 | 1969 | 0–3 | 0.0% | — | 1,421 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 1970 | 1–1 | 50.0% | — | 1,441 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 1971 | 0–4 | 0.0% | — | 1,392 | 0 | 0 | — | — | — | — | — | — | — |
| 21 | 1972 | 8–16 | 33.3% | — | 1,446 | 0 | 0 | 1968 | 13–16 | 44.8% | — | 1,561 | 0 | 0 |
| 22 | 1973 | 18–21 | 46.2% | #92 | 1,566 | 0 | 0 | 1969 | 13–22 | 37.1% | — | 1,581 | 0 | 0 |
| 23 | 1974 | 12–30 | 28.6% | #132 | 1,472 | 0 | 0 | 1970 | 19–21 | 47.5% | — | 1,586 | 0 | 0 |
| 24 | 1975 | 3–2 | 60.0% | #193 | 1,552 | 0 | 0 | 1971 | 26–24 | 52.0% | — | 1,689 | 0 | 0 |
| 25 | 1976 | 1–2 | 33.3% | — | 1,539 | 0 | 0 | 1972 | 39–36 | 52.0% | — | 1,703 | 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 | 1980 | 0–1 | 0.0% | #365 | 1,522 | 0 | 0 | 1976 | 38–23 | 62.3% | #29 | 1,816 | 0 | 6 |
| 30 | 1981 | 1–2 | 33.3% | #365 | 1,524 | 0 | 0 | 1977 | 13–27 | 32.5% | #149 | 1,624 | 0 | 6 |
| 31 | 1982 | 1–8 | 11.1% | #96 | 1,449 | 0 | 0 | 1978 | 1–14 | 6.7% | #210 | 1,499 | 0 | 6 |
| 32 | 1983 | 2–3 | 40.0% | #167 | 1,449 | 0 | 0 | 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 |