H2H data updated: 2026-09-02 00:00 UTC

Sandy Mayer vs Onny Parun H2H: 2-1

Sandy Mayer holds a 2–1 lead over Onny Parun in their ATP head-to-head. Across 3 main-draw meetings, they are tied 1–1 on hard courts, while Sandy Mayer leads 1–0 on grass. Most recently, Onny Parun won the 1977 Los Angeles round of 64 7-6 6-7 6-4.

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Sandy Mayer
USA Age 74 Right-Handed 178 cm / 5'10"
H2H
2 – 1
3 main draw meetings
Onny Parun
NZL Age 79 Right-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Onny Parun 7-6 6-7 6-4 Sandy Mayer #26 Match data Sep 21, 1977* R64 Los Angeles ATP 250 Hard
Sandy Mayer 6-4 9-8 6-2 Onny Parun Match data Jun 29, 1975* R32 Wimbledon Grand Slam Grass
Sandy Mayer 7-6 6-1 Onny Parun Match data Feb 23, 1973* R16 Salisbury ATP 250 Hard

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
Sandy Mayer #508 #7 0 2,080 371 205 64.4% 0 0 0 0 12 12
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 Sandy Mayer Onny Parun
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 1970 1–2 33.3% — 1,483 0 0 — — — — — — —
19 1971 1–4 20.0% — 1,455 0 0 — — — — — — —
20 1972 13–8 61.9% — 1,650 0 0 — — — — — — —
21 1973 30–13 69.8% #134 1,813 0 2 1968 13–16 44.8% — 1,563 0 0
22 1974 29–10 74.4% #55 1,875 0 5 1969 13–22 37.1% — 1,578 0 0
23 1975 47–23 67.1% #28 1,939 0 5 1970 19–21 47.5% — 1,600 0 0
24 1976 13–15 46.4% #75 1,877 0 5 1971 26–24 52.0% — 1,687 0 0
25 1977 39–14 73.6% #16 1,995 0 8 1972 39–36 52.0% — 1,705 0 0
26 1978 41–20 67.2% #17 1,936 0 9 1973 49–43 53.3% #40 1,733 0 1
27 1979 15–12 55.6% #44 1,902 0 9 1974 76–36 67.9% #25 1,946 0 3
28 1980 17–18 48.6% #51 1,835 0 9 1975 65–31 67.7% #26 1,888 0 4
29 1981 42–16 72.4% #14 2,048 0 10 1976 38–23 62.3% #29 1,843 0 6
30 1982 38–19 66.7% #16 1,912 0 11 1977 13–27 32.5% #89 1,631 0 6
31 1983 33–17 66.0% #18 1,935 0 12 1978 1–14 6.7% #210 1,504 0 6
32 1984 10–11 47.6% #117 1,806 0 12 1979 3–15 16.7% #214 1,429 0 6
33 1985 2–3 40.0% #309 1,795 0 12 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 Sandy 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 %
18 1970 — — — — — — — — 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
19 1971 0 1 1 0.0% 1 2 3 33.3% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
20 1972 1 1 2 50.0% 6 4 10 60.0% 5 2 7 71.4% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
21 1973 14 6 20 70.0% 7 2 9 77.8% 8 4 12 66.7% 1 1 2 50.0% 1968 1 1 2 50.0% 2 7 9 22.2% 9 7 16 56.3% 1 1 2 50.0%
22 1974 6 2 8 75.0% — — — — 5 3 8 62.5% 18 5 23 78.3% 1969 2 5 7 28.6% 3 8 11 27.3% 8 8 16 50.0% 0 1 1 0.0%
23 1975 17 7 24 70.8% 6 7 13 46.2% 3 2 5 60.0% 21 7 28 75.0% 1970 4 4 8 50.0% 10 11 21 47.6% 3 4 7 42.9% 2 2 4 50.0%
24 1976 4 4 8 50.0% — — — — 1 3 4 25.0% 8 8 16 50.0% 1971 11 11 22 50.0% 6 8 14 42.9% 8 4 12 66.7% 1 1 2 50.0%
25 1977 15 5 20 75.0% — — — — 3 1 4 75.0% 21 8 29 72.4% 1972 2 8 10 20.0% 16 14 30 53.3% 11 6 17 64.7% 10 8 18 55.6%
26 1978 4 4 8 50.0% 3 1 4 75.0% 8 2 10 80.0% 26 13 39 66.7% 1973 15 15 30 50.0% 8 11 19 42.1% 21 7 28 75.0% 5 10 15 33.3%
27 1979 2 3 5 40.0% 4 4 8 50.0% 6 2 8 75.0% 3 3 6 50.0% 1974 17 8 25 68.0% 35 12 47 74.5% 17 10 27 63.0% 7 6 13 53.8%
28 1980 9 6 15 60.0% 0 2 2 0.0% 7 6 13 53.8% 1 4 5 20.0% 1975 14 5 19 73.7% 32 15 47 68.1% 7 2 9 77.8% 12 9 21 57.1%
29 1981 22 8 30 73.3% 2 1 3 66.7% 3 1 4 75.0% 15 6 21 71.4% 1976 11 3 14 78.6% 18 12 30 60.0% 3 1 4 75.0% 6 7 13 46.2%
30 1982 10 5 15 66.7% 10 3 13 76.9% 3 2 5 60.0% 15 9 24 62.5% 1977 2 5 7 28.6% 8 10 18 44.4% 3 4 7 42.9% 0 8 8 0.0%
31 1983 16 8 24 66.7% 6 1 7 85.7% 4 1 5 80.0% 7 7 14 50.0% 1978 1 2 3 33.3% 0 10 10 0.0% 0 1 1 0.0% 0 1 1 0.0%
32 1984 9 6 15 60.0% 1 3 4 25.0% 0 1 1 0.0% 0 1 1 0.0% 1979 0 7 7 0.0% 2 6 8 25.0% 1 1 2 50.0% 0 1 1 0.0%
33 1985 — — — — 0 1 1 0.0% — — — — 2 2 4 50.0% 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 — 129 66 195 66.2% 46 31 77 59.7% 57 33 90 63.3% 139 75 214 65.0% — 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 Sandy 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
18 1970 1484 98.5 — — — — — — +6 37.5% -0.87 0–1 1–2 (33%) — +0.18 — — — — — — — — — — — — — — — —
19 1971 1456 95.6 — — — — — +66 — 30.8% -2.46 0–1 1–0 — +0.38 — — — — — — — — — — — — — — — —
20 1972 1651 127.7 — — — — -77 -36 -10 61.3% +0.85 5–4 (56%) 2–3 (40%) — +1.83 — — — — — — — — — — — — — — — —
21 1973 1813 130.2 — — — — -73 -58 -95 69.2% +1.07 6–3 (67%) 8–2 (80%) — +3.28 1968 1564 110.6 — — — — -9 -142 +80 52.6% -0.07 4–9 (31%) — — -0.25
22 1974 1875 138.1 — — — — +51 — -128 68.5% +1.21 10–3 (77%) 6–3 (67%) — +3.00 1969 1578 108.4 — — — — -30 -201 +65 39.1% -0.60 6–7 (46%) — — -0.52
23 1975 1939 149.0 — — — — +83 -226 -171 63.9% +1.01 8–7 (53%) 10–7 (59%) — -0.37 1970 1600 119.0 — — — — +48 -91 -16 48.4% -0.13 5–3 (63%) 2–2 (50%) — +1.16
24 1976 1877 146.9 — — — — +59 — -136 49.2% -0.11 2–6 (25%) 4–5 (44%) — -4.01 1971 1687 128.1 — — — — -46 -169 +78 51.6% +0.21 2–7 (22%) 5–10 (33%) — +1.55
25 1977 1996 152.6 — — — — +51 — -241 68.9% +1.40 9–8 (53%) 4–3 (57%) — +0.23 1972 1706 125.9 — — — — -55 -49 +96 50.8% +0.31 10–9 (53%) 6–15 (29%) — +2.98
26 1978 1936 156.1 — — — — +10 -230 -32 63.8% +0.98 12–11 (52%) 14–10 (58%) — -2.55 1973 1734 138.8 — — — — -6 -118 +241 53.0% +0.37 12–13 (48%) 13–20 (39%) — -0.99
27 1979 1902 143.7 — — — — -28 -144 +61 53.4% +0.10 7–4 (64%) 10–5 (67%) — -3.21 1974 1947 147.2 — — — — -21 -11 -72 62.6% +0.83 19–14 (58%) 18–10 (64%) — +1.03
28 1980 1835 151.0 — — — — +59 — +50 48.2% -0.05 4–4 (50%) 6–4 (60%) — -4.38 1975 1889 140.3 — — — — +1 +51 -4 58.8% +0.55 27–4 (87%) 13–14 (48%) — +0.29
29 1981 2049 165.1 — — — — +73 -302 -159 65.4% +1.15 13–4 (76%) 10–4 (71%) — -5.49 1976 1844 142.1 — — — — +61 +37 +88 60.0% +0.35 10–5 (67%) 19–9 (68%) — +0.73
30 1982 1912 154.4 — — — — +102 -109 -72 63.2% +0.94 13–6 (68%) 8–6 (57%) — -1.06 1977 1631 137.9 — — — — +90 +96 +207 40.0% -0.57 5–10 (33%) 7–8 (47%) — -2.17
31 1983 1936 155.1 — — — — +1 -53 -12 61.2% +0.81 14–8 (64%) 10–8 (56%) — -2.69 1978 1504 119.8 — — — — +170 +86 — 23.1% -1.85 0–6 (0%) 2–4 (33%) — -0.08
32 1984 1806 122.4 — — — — +46 +18 — 51.7% -0.05 5–6 (45%) 5–3 (63%) — -0.21 1979 1429 103.3 — — — — +100 +116 — 19.5% -1.76 0–1 0–6 (0%) — +1.15
33 1985 1795 128.2 — — — — +51 — — 50.0% +0.50 0–2 0–2 — -1.00 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 — 2081 155.8 — — — — +44 -112 -55 61.6% +0.79 108–78 (58%) 99–67 (60%) 107.5 -2.83 — 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.