H2H data updated: 2026-09-03 00:00 UTC

Onny Parun vs Geoff Masters H2H: 2-2

Onny Parun and Geoff Masters are tied 2–2 in their ATP head-to-head. Across 4 main-draw meetings, Geoff Masters leads 2–0 on clay, while Onny Parun leads 1–0 on carpet. Most recently, Onny Parun won the 1973 Australian Open round of 16 7-6 3-6 6-3 7-5.

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Onny Parun
NZL Age 79 Right-Handed 188 cm / 6'2"
H2H
2 – 2
4 main draw meetings
Geoff Masters
AUS Age 75 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Onny Parun 7-6 3-6 6-3 7-5 Geoff Masters Match data Jan 4, 1973* R16 Australian Open Grand Slam Grass
Onny Parun 6-3 4-6 6-3 Geoff Masters Match data Sep 20, 1972* R32 Seattle ATP 250 Carpet
Geoff Masters 6-8 8-6 6-4 5-7 6-4 Onny Parun Match data May 25, 1971* R32 Bournemouth ATP 250 Clay
Geoff Masters 6-4 6-2 6-2 Onny Parun Match data May 23, 1971* R128 Roland Garros Grand Slam Clay

Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.

Career Comparison

Player Current Peak Pts Elo W L Win % GS 1000 including documented historical predecessor categories Finals 500 including documented historical predecessor categories 250 including documented historical predecessor categories Titles
Onny Parun #398 #19 0 1,991 375 341 52.4% 0 0 0 0 6 6
Geoff Masters #826 #42 0 1,889 237 253 48.4% 0 0 0 0 2 2

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 Geoff Masters
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1968 2–2 50.0% — 1,511 0 0
18 — — — — — — — 1969 7–6 53.8% — 1,542 0 0
19 — — — — — — — 1970 10–7 58.8% — 1,581 0 0
20 — — — — — — — 1971 19–22 46.3% — 1,573 0 0
21 1968 13–16 44.8% — 1,563 0 0 1972 18–18 50.0% — 1,670 0 0
22 1969 13–22 37.1% — 1,578 0 0 1973 28–23 54.9% #52 1,756 0 0
23 1970 19–21 47.5% — 1,600 0 0 1974 23–21 52.3% #53 1,766 0 1
24 1971 26–24 52.0% — 1,687 0 0 1975 27–24 52.9% #44 1,812 0 1
25 1972 39–36 52.0% — 1,705 0 0 1976 27–31 46.6% #53 1,780 0 2
26 1973 49–43 53.3% #40 1,733 0 1 1977 22–27 44.9% #83 1,662 0 2
27 1974 76–36 67.9% #25 1,946 0 3 1978 20–20 50.0% #59 1,701 0 2
28 1975 65–31 67.7% #26 1,888 0 4 1979 21–23 47.7% #62 1,728 0 2
29 1976 38–23 62.3% #29 1,843 0 6 1980 13–28 31.7% #166 1,517 0 2
30 1977 13–27 32.5% #89 1,631 0 6 1981 0–1 0.0% — 1,501 0 2
31 1978 1–14 6.7% #210 1,504 0 6 — — — — — — —
32 1979 3–15 16.7% #214 1,429 0 6 — — — — — — —
33 1980 15–19 44.1% #96 1,597 0 6 — — — — — — —
34 1981 5–13 27.8% #99 1,529 0 6 — — — — — — —
35 1982 0–1 0.0% — 1,515 0 6 — — — — — — —

Surface Results by Age

Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.

Age Onny Parun Geoff Masters
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win %
17 — — — — — — — — — — — — — — — — — 1968 — — — — — — — — 2 2 4 50.0% — — — —
18 — — — — — — — — — — — — — — — — — 1969 — — — — 3 3 6 50.0% 4 3 7 57.1% — — — —
19 — — — — — — — — — — — — — — — — — 1970 — — — — 4 3 7 57.1% 6 4 10 60.0% — — — —
20 — — — — — — — — — — — — — — — — — 1971 3 9 12 25.0% 5 6 11 45.5% 11 7 18 61.1% — — — —
21 1968 1 1 2 50.0% 2 7 9 22.2% 9 7 16 56.3% 1 1 2 50.0% 1972 11 5 16 68.8% 5 5 10 50.0% 2 7 9 22.2% 0 1 1 0.0%
22 1969 2 5 7 28.6% 3 8 11 27.3% 8 8 16 50.0% 0 1 1 0.0% 1973 8 4 12 66.7% 15 13 28 53.6% 5 6 11 45.5% — — — —
23 1970 4 4 8 50.0% 10 11 21 47.6% 3 4 7 42.9% 2 2 4 50.0% 1974 2 8 10 20.0% 11 5 16 68.8% 9 4 13 69.2% 1 4 5 20.0%
24 1971 11 11 22 50.0% 6 8 14 42.9% 8 4 12 66.7% 1 1 2 50.0% 1975 9 9 18 50.0% 5 6 11 45.5% 6 3 9 66.7% 7 6 13 53.8%
25 1972 2 8 10 20.0% 16 14 30 53.3% 11 6 17 64.7% 10 8 18 55.6% 1976 11 6 17 64.7% 6 9 15 40.0% 3 5 8 37.5% 7 11 18 38.9%
26 1973 15 15 30 50.0% 8 11 19 42.1% 21 7 28 75.0% 5 10 15 33.3% 1977 15 11 26 57.7% 0 2 2 0.0% 5 9 14 35.7% 2 5 7 28.6%
27 1974 17 8 25 68.0% 35 12 47 74.5% 17 10 27 63.0% 7 6 13 53.8% 1978 7 5 12 58.3% 3 2 5 60.0% 4 4 8 50.0% 6 9 15 40.0%
28 1975 14 5 19 73.7% 32 15 47 68.1% 7 2 9 77.8% 12 9 21 57.1% 1979 2 4 6 33.3% 4 3 7 57.1% 9 6 15 60.0% 6 10 16 37.5%
29 1976 11 3 14 78.6% 18 12 30 60.0% 3 1 4 75.0% 6 7 13 46.2% 1980 2 6 8 25.0% 2 7 9 22.2% 1 6 7 14.3% 8 9 17 47.1%
30 1977 2 5 7 28.6% 8 10 18 44.4% 3 4 7 42.9% 0 8 8 0.0% 1981 — — — — — — — — 0 1 1 0.0% — — — —
31 1978 1 2 3 33.3% 0 10 10 0.0% 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
32 1979 0 7 7 0.0% 2 6 8 25.0% 1 1 2 50.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
33 1980 8 8 16 50.0% 3 7 10 30.0% 3 3 6 50.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
34 1981 3 2 5 60.0% 1 7 8 12.5% 1 4 5 20.0% — — — — — — — — — — — — — — — — — — — — —
35 1982 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 91 85 176 51.7% 144 138 282 51.1% 95 62 157 60.5% 45 56 101 44.6% — 70 67 137 51.1% 63 64 127 49.6% 67 67 134 50.0% 37 55 92 40.2%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.

Age Onny Parun Geoff Masters
Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Pressure+ Schedule Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Pressure+ Schedule
17 — — — — — — — — — — — — — — — — 1968 1511 104.2 — — — — — — +30 54.5% +0.45 — — — +0.07
18 — — — — — — — — — — — — — — — — 1969 1542 108.7 — — — — — +20 -1 53.1% +0.47 2–1 (67%) — — +1.09
19 — — — — — — — — — — — — — — — — 1970 1581 113.8 — — — — — +4 +1 48.9% +0.09 2–0 0–1 — +2.04
20 — — — — — — — — — — — — — — — — 1971 1573 113.6 — — — — -110 +36 +80 44.4% -0.32 9–3 (75%) 1–3 (25%) — +2.45
21 1968 1564 110.6 — — — — -9 -142 +80 52.6% -0.07 4–9 (31%) — — -0.25 1972 1670 122.7 — — — — -2 -18 -123 48.0% +0.02 6–6 (50%) 3–4 (43%) — +1.43
22 1969 1578 108.4 — — — — -30 -201 +65 39.1% -0.60 6–7 (46%) — — -0.52 1973 1756 140.1 — — — — 0 -38 -146 52.2% +0.18 11–7 (61%) 8–9 (47%) — -1.32
23 1970 1600 119.0 — — — — +48 -91 -16 48.4% -0.13 5–3 (63%) 2–2 (50%) — +1.16 1974 1766 141.0 — — — — -125 +49 -11 52.2% +0.31 8–7 (53%) 3–6 (33%) — -2.52
24 1971 1687 128.1 — — — — -46 -169 +78 51.6% +0.21 2–7 (22%) 5–10 (33%) — +1.55 1975 1812 148.9 — — — — -23 -36 +8 53.0% +0.27 10–12 (45%) 6–8 (43%) — -3.09
25 1972 1706 125.9 — — — — -55 -49 +96 50.8% +0.31 10–9 (53%) 6–15 (29%) — +2.98 1976 1781 148.0 — — — — +86 -91 -12 48.5% +0.04 4–8 (33%) 9–4 (69%) — -2.30
26 1973 1734 138.8 — — — — -6 -118 +241 53.0% +0.37 12–13 (48%) 13–20 (39%) — -0.99 1977 1662 120.4 — — — — +90 — -42 44.1% -0.40 8–10 (44%) 6–9 (40%) — +2.97
27 1974 1947 147.2 — — — — -21 -11 -72 62.6% +0.83 19–14 (58%) 18–10 (64%) — +1.03 1978 1701 140.0 — — — — +47 -24 -35 51.0% +0.09 5–8 (38%) 5–5 (50%) — +1.79
28 1975 1889 140.3 — — — — +1 +51 -4 58.8% +0.55 27–4 (87%) 13–14 (48%) — +0.29 1979 1729 143.8 — — — — -31 -3 -1 48.1% -0.11 8–8 (50%) 8–7 (53%) — -2.12
29 1976 1844 142.1 — — — — +61 +37 +88 60.0% +0.35 10–5 (67%) 19–9 (68%) — +0.73 1980 1518 124.9 — — — — +79 +146 +101 36.6% -0.87 4–8 (33%) 8–8 (50%) — -0.05
30 1977 1631 137.9 — — — — +90 +96 +207 40.0% -0.57 5–10 (33%) 7–8 (47%) — -2.17 1981 1501 94.8 — — — — — — — 0.0% -4.00 — — — +0.19
31 1978 1504 119.8 — — — — +170 +86 — 23.1% -1.85 0–6 (0%) 2–4 (33%) — -0.08 — — — — — — — — — — — — — — — —
32 1979 1429 103.3 — — — — +100 +116 — 19.5% -1.76 0–1 0–6 (0%) — +1.15 — — — — — — — — — — — — — — — —
33 1980 1598 128.8 — — — — +25 -79 +188 47.3% -0.08 6–9 (40%) 7–8 (47%) — +0.57 — — — — — — — — — — — — — — — —
34 1981 1529 117.5 — — — — +118 -85 +178 22.2% -1.42 2–0 0–6 (0%) — -0.41 — — — — — — — — — — — — — — — —
35 1982 1516 100.7 — — — — — — — 33.3% -1.00 0–1 — — +0.11 — — — — — — — — — — — — — — — —
Career — 1991 136.8 — — — — +8 -23 +87 51.4% +0.14 108–98 (52%) 92–112 (45%) 97.2 +0.73 — 1890 139.6 — — — — +20 -4 -11 48.2% -0.04 77–78 (50%) 57–64 (47%) 99.9 +0.13

Career Rivalries

Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.