H2H data updated: 2026-07-19 14:15 UTC
Onny Parun vs Byron Bertram H2H: 0-1
Byron Bertram holds a 1–0 lead over Onny Parun in their ATP head-to-head. Across 1 main-draw meeting, Byron Bertram leads 1–0 on carpet. Most recently, Byron Bertram won the 1976 Los Angeles second round 7-5 6-3.
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NZL
Age 79
Right-Handed
188 cm / 6'2"
H2H
0
–
1
1 main draw meetings
RSA
Age 73
Right-Handed
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Sep 22, 1976* | Los Angeles | ATP 250 | R64 | Carpet | Byron Bertram | 7-5 6-3 | 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 |
| Byron Bertram | #150 | #51 | 0 | 1,810 | 113 | 138 | 45.0% | 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 | Byron Bertram | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | — | — | — | — | — | — | — | 1969 | 0–3 | 0.0% | — | 1,466 | 0 | 0 |
| 17 | — | — | — | — | — | — | — | 1970 | 11–11 | 50.0% | — | 1,540 | 0 | 0 |
| 18 | — | — | — | — | — | — | — | 1971 | 9–13 | 40.9% | — | 1,542 | 0 | 0 |
| 19 | — | — | — | — | — | — | — | 1972 | 2–2 | 50.0% | — | 1,532 | 0 | 0 |
| 20 | — | — | — | — | — | — | — | 1973 | 11–10 | 52.4% | #152 | 1,609 | 0 | 0 |
| 21 | 1968 | 13–16 | 44.8% | — | 1,561 | 0 | 0 | 1974 | 15–13 | 53.6% | #156 | 1,649 | 0 | 0 |
| 22 | 1969 | 13–22 | 37.1% | — | 1,581 | 0 | 0 | 1975 | 5–8 | 38.5% | #120 | 1,650 | 0 | 0 |
| 23 | 1970 | 19–21 | 47.5% | — | 1,586 | 0 | 0 | 1976 | 21–23 | 47.7% | #57 | 1,728 | 0 | 0 |
| 24 | 1971 | 26–24 | 52.0% | — | 1,689 | 0 | 0 | 1977 | 21–27 | 43.8% | #84 | 1,741 | 0 | 0 |
| 25 | 1972 | 39–36 | 52.0% | — | 1,703 | 0 | 0 | 1978 | 10–11 | 47.6% | #92 | 1,664 | 0 | 0 |
| 26 | 1973 | 49–43 | 53.3% | #40 | 1,731 | 0 | 1 | 1979 | 1–2 | 33.3% | #219 | 1,646 | 0 | 0 |
| 27 | 1974 | 76–37 | 67.3% | #25 | 1,945 | 0 | 3 | 1980 | 7–15 | 31.8% | #150 | 1,567 | 0 | 0 |
| 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 | — | — | — | — | — | — | — |