H2H data updated: 2026-07-18 14:16 UTC

Ross Case vs Onny Parun H2H: 1-4

Onny Parun holds a 4–1 lead over Ross Case in their ATP head-to-head. Across 5 main-draw meetings, Onny Parun leads 2–1 on hard courts and 2–0 on grass. Most recently, Onny Parun won the 1974 Jakarta quarterfinal 7-5 6-4.

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Ross Case
AUS Age 74 Right-Handed
H2H
1 – 4
5 main draw meetings
Onny Parun
NZL Age 79 Right-Handed 188 cm / 6'2"

H2H Match Log

DateTournamentCategoryRoundSurfaceWinnerScoreLoserMatch
Nov 8, 1974* Jakarta ATP 250 QF Hard Onny Parun #29 7-5 6-4 Ross Case #24 Match data
Oct 24, 1974* Sydney Indoor ATP 250 R16 Hard Onny Parun #34 6-2 7-6 Ross Case #36 Match data
Jan 12, 1974* Auckland ATP 250 SF Grass Onny Parun #40 7-5 6-3 6-1 Ross Case #42 Match data
Sep 7, 1973* US Open Grand Slam R16 Grass Onny Parun #57 6-4 6-1 4-6 6-4 Ross Case #62 Match data
Sep 29, 1971* Berkeley ATP 250 R64 Hard Ross Case 3-6 6-3 7-6 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
Ross Case #758 #14 0 1,960 294 276 51.6% 0 0 0 0 4 4
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 Ross Case Onny Parun
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1968 3–3 50.0% — 1,503 0 0 — — — — — — —
17 1969 4–4 50.0% — 1,527 0 0 — — — — — — —
18 1970 11–8 57.9% — 1,580 0 0 — — — — — — —
19 1971 26–20 56.5% — 1,642 0 0 — — — — — — —
20 1972 22–21 51.2% — 1,687 0 0 — — — — — — —
21 1973 42–34 55.3% #42 1,809 0 1 1968 13–16 44.8% — 1,561 0 0
22 1974 43–28 60.6% #29 1,828 0 2 1969 13–22 37.1% — 1,581 0 0
23 1975 38–22 63.3% #27 1,933 0 4 1970 19–21 47.5% — 1,586 0 0
24 1976 28–24 53.8% #45 1,832 0 4 1971 26–24 52.0% — 1,689 0 0
25 1977 21–24 46.7% #55 1,758 0 4 1972 39–36 52.0% — 1,703 0 0
26 1978 14–19 42.4% #86 1,680 0 4 1973 49–43 53.3% #40 1,731 0 1
27 1979 24–26 48.0% #74 1,674 0 4 1974 76–37 67.3% #25 1,945 0 3
28 1980 11–20 35.5% #163 1,619 0 4 1975 65–31 67.7% #26 1,889 0 4
29 1981 5–15 25.0% #163 1,500 0 4 1976 38–23 62.3% #29 1,816 0 6
30 1982 1–5 16.7% #215 1,466 0 4 1977 13–27 32.5% #149 1,624 0 6
31 1983 1–3 25.0% #415 1,458 0 4 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