H2H data updated: 2026-09-04 00:00 UTC

Gene Mayer vs Onny Parun H2H: 1-0

Gene Mayer holds a 1–0 lead over Onny Parun in their ATP head-to-head. Across 1 main-draw meeting, Gene Mayer leads 1–0 on grass. Most recently, Gene Mayer won the 1979 Wimbledon round of 64 6-4 6-1 6-2.

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Gene Mayer
USA Age 70 Right-Handed 183 cm / 6'0"
H2H
1 – 0
1 main draw meetings
Onny Parun
NZL Age 79 Right-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Gene Mayer #18 6-4 6-1 6-2 Onny Parun Match data Jun 29, 1979* R64 Wimbledon Grand Slam Grass

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
Gene Mayer #976 #4 6 2,208 309 157 66.3% 0 0 0 0 14 14
Onny Parun #398 #19 0 1,991 375 341 52.4% 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 Gene Mayer Onny Parun
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1973 0–1 0.0% — 1,492 0 0 — — — — — — —
19 1975 6–10 37.5% #144 1,541 0 0 — — — — — — —
20 1976 17–16 51.5% #48 1,702 0 0 — — — — — — —
21 1977 17–27 38.6% #86 1,692 0 0 1968 13–16 44.8% — 1,563 0 0
22 1978 25–18 58.1% #64 1,734 0 1 1969 13–22 37.1% — 1,578 0 0
23 1979 54–25 68.4% #12 1,981 0 2 1970 19–21 47.5% — 1,600 0 0
24 1980 69–14 83.1% #5 2,154 0 7 1971 26–24 52.0% — 1,687 0 0
25 1981 37–8 82.2% #7 2,073 0 11 1972 39–36 52.0% — 1,705 0 0
26 1982 33–11 75.0% #7 2,076 0 12 1973 49–43 53.3% #40 1,733 0 1
27 1983 25–10 71.4% #10 1,967 0 14 1974 76–36 67.9% #25 1,946 0 3
28 1984 24–15 61.5% #18 1,874 0 14 1975 65–31 67.7% #26 1,888 0 4
29 1985 2–1 66.7% #368 1,864 0 14 1976 38–23 62.3% #29 1,843 0 6
30 1986 0–1 0.0% #870 1,842 0 14 1977 13–27 32.5% #89 1,631 0 6
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 Gene Mayer Onny Parun
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 1973 — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
19 1975 0 1 1 0.0% 3 5 8 37.5% — — — — 3 4 7 42.9% — — — — — — — — — — — — — — — — —
20 1976 7 4 11 63.6% 7 8 15 46.7% 0 1 1 0.0% 3 3 6 50.0% — — — — — — — — — — — — — — — — —
21 1977 0 2 2 0.0% 11 13 24 45.8% 1 3 4 25.0% 5 9 14 35.7% 1968 1 1 2 50.0% 2 7 9 22.2% 9 7 16 56.3% 1 1 2 50.0%
22 1978 6 4 10 60.0% 11 5 16 68.8% 2 3 5 40.0% 6 6 12 50.0% 1969 2 5 7 28.6% 3 8 11 27.3% 8 8 16 50.0% 0 1 1 0.0%
23 1979 26 8 34 76.5% 12 6 18 66.7% 4 2 6 66.7% 12 9 21 57.1% 1970 4 4 8 50.0% 10 11 21 47.6% 3 4 7 42.9% 2 2 4 50.0%
24 1980 19 4 23 82.6% 12 4 16 75.0% 4 1 5 80.0% 34 5 39 87.2% 1971 11 11 22 50.0% 6 8 14 42.9% 8 4 12 66.7% 1 1 2 50.0%
25 1981 18 3 21 85.7% 2 2 4 50.0% — — — — 17 3 20 85.0% 1972 2 8 10 20.0% 16 14 30 53.3% 11 6 17 64.7% 10 8 18 55.6%
26 1982 17 6 23 73.9% 5 0 5 100.0% 4 1 5 80.0% 7 4 11 63.6% 1973 15 15 30 50.0% 8 11 19 42.1% 21 7 28 75.0% 5 10 15 33.3%
27 1983 17 5 22 77.3% — — — — — — — — 8 5 13 61.5% 1974 17 8 25 68.0% 35 12 47 74.5% 17 10 27 63.0% 7 6 13 53.8%
28 1984 5 4 9 55.6% 11 4 15 73.3% 0 1 1 0.0% 8 6 14 57.1% 1975 14 5 19 73.7% 32 15 47 68.1% 7 2 9 77.8% 12 9 21 57.1%
29 1985 — — — — — — — — — — — — 2 1 3 66.7% 1976 11 3 14 78.6% 18 12 30 60.0% 3 1 4 75.0% 6 7 13 46.2%
30 1986 — — — — 0 1 1 0.0% — — — — — — — — 1977 2 5 7 28.6% 8 10 18 44.4% 3 4 7 42.9% 0 8 8 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 — 115 41 156 73.7% 74 48 122 60.7% 15 13 28 53.6% 105 55 160 65.6% — 91 85 176 51.7% 144 138 282 51.1% 95 62 157 60.5% 45 56 101 44.6%

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 Gene Mayer Onny Parun
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 1973 1492 100.4 — — — — — — — 33.3% -2.00 0–1 1–0 — -0.19 — — — — — — — — — — — — — — — —
19 1975 1541 117.6 — — — — +18 +30 — 38.9% -0.67 1–2 (33%) 2–2 (50%) — +0.55 — — — — — — — — — — — — — — — —
20 1976 1703 134.8 — — — — -5 -55 — 50.7% +0.17 4–3 (57%) 2–5 (29%) — +1.87 — — — — — — — — — — — — — — — —
21 1977 1693 140.3 — — — — -13 -6 -198 41.8% -0.74 5–3 (63%) 5–2 (71%) — -1.29 1968 1564 110.6 — — — — -9 -142 +80 52.6% -0.07 4–9 (31%) — — -0.25
22 1978 1734 142.4 — — — — -21 +21 -205 60.8% +1.16 3–8 (27%) 3–6 (33%) — +2.25 1969 1578 108.4 — — — — -30 -201 +65 39.1% -0.60 6–7 (46%) — — -0.52
23 1979 1982 164.8 — — — — +59 -89 -319 65.6% +1.04 10–9 (53%) 8–5 (62%) — -4.23 1970 1600 119.0 — — — — +48 -91 -16 48.4% -0.13 5–3 (63%) 2–2 (50%) — +1.16
24 1980 2154 169.4 — — — — +68 -228 -359 78.3% +2.22 12–0 (100%) 9–5 (64%) — -2.23 1971 1687 128.1 — — — — -46 -169 +78 51.6% +0.21 2–7 (22%) 5–10 (33%) — +1.55
25 1981 2073 158.2 — — — — +97 -180 — 84.9% +2.44 2–4 (33%) 6–2 (75%) — +0.66 1972 1706 125.9 — — — — -55 -49 +96 50.8% +0.31 10–9 (53%) 6–15 (29%) — +2.98
26 1982 2076 160.9 — — — — +32 -135 -210 75.5% +1.96 3–4 (43%) 6–6 (50%) — -2.35 1973 1734 138.8 — — — — -6 -118 +241 53.0% +0.37 12–13 (48%) 13–20 (39%) — -0.99
27 1983 1968 152.8 — — — — +26 — — 65.4% +0.98 6–1 (86%) 4–4 (50%) — -1.12 1974 1947 147.2 — — — — -21 -11 -72 62.6% +0.83 19–14 (58%) 18–10 (64%) — +1.03
28 1984 1874 154.0 — — — — +82 +43 — 59.8% +0.67 5–3 (63%) 5–7 (42%) — -1.60 1975 1889 140.3 — — — — +1 +51 -4 58.8% +0.55 27–4 (87%) 13–14 (48%) — +0.29
29 1985 1865 112.4 — — — — +71 — — 62.5% +1.13 1–1 — — +0.53 1976 1844 142.1 — — — — +61 +37 +88 60.0% +0.35 10–5 (67%) 19–9 (68%) — +0.73
30 1986 1842 106.8 — — — — — — — 33.3% -1.67 0–1 — — -0.11 1977 1631 137.9 — — — — +90 +96 +207 40.0% -0.57 5–10 (33%) 7–8 (47%) — -2.17
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 — 2209 161.8 — — — — +47 -53 -263 65.3% +1.15 52–40 (57%) 51–44 (54%) 101.0 -1.58 — 1991 136.8 — — — — +8 -23 +87 51.4% +0.14 108–98 (52%) 92–112 (45%) 97.2 +0.73

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.