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

Gene Mayer vs Marko Ostoja H2H: 1-0

Gene Mayer holds a 1–0 lead over Marko Ostoja in their ATP head-to-head. Across 1 main-draw meeting, Gene Mayer leads 1–0 on hard courts. Most recently, Gene Mayer won the 1984 US Open round of 128 7-5 6-3 6-1.

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Gene Mayer
USA Age 70 Right-Handed 183 cm / 6'0"
H2H
1 – 0
1 main draw meetings
Marko Ostoja
CRO Age 65 Right-Handed 175 cm / 5'9"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Gene Mayer #20 7-5 6-3 6-1 Marko Ostoja #110 Match data Aug 30, 1984* R128 US Open Grand Slam 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
Gene Mayer #976 #4 6 2,208 309 157 66.3% 0 0 0 0 14 14
Marko Ostoja #1,220 #74 92 1,710 77 136 36.2% 0 0 0 0 1 1

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 Marko Ostoja
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1973 0–1 0.0% — 1,492 0 0 — — — — — — —
18 — — — — — — — 1979 0–1 0.0% #377 1,498 0 0
19 1975 6–10 37.5% #144 1,541 0 0 1980 4–7 36.4% #203 1,506 0 0
20 1976 17–16 51.5% #48 1,702 0 0 1981 14–20 41.2% — 1,590 0 1
21 1977 17–27 38.6% #86 1,692 0 0 1982 14–21 40.0% — 1,582 0 1
22 1978 25–18 58.1% #64 1,734 0 1 1983 7–9 43.8% #95 1,585 0 1
23 1979 54–25 68.4% #12 1,981 0 2 1984 13–21 38.2% #125 1,613 0 1
24 1980 69–14 83.1% #5 2,154 0 7 1985 7–18 28.0% #166 1,547 0 1
25 1981 37–8 82.2% #7 2,073 0 11 1986 10–18 35.7% #136 1,545 0 1
26 1982 33–11 75.0% #7 2,076 0 12 1987 0–5 0.0% #467 1,482 0 1
27 1983 25–10 71.4% #10 1,967 0 14 1988 3–5 37.5% #199 1,513 0 1
28 1984 24–15 61.5% #18 1,874 0 14 1989 5–10 33.3% #224 1,511 0 1
29 1985 2–1 66.7% #368 1,864 0 14 1990 0–1 0.0% #624 1,495 0 1
30 1986 0–1 0.0% #870 1,842 0 14 — — — — — — —

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 Marko Ostoja
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% — — — — — — — — — — — — — — — — — — — — —
18 — — — — — — — — — — — — — — — — — 1979 0 1 1 0.0% — — — — — — — — — — — —
19 1975 0 1 1 0.0% 3 5 8 37.5% — — — — 3 4 7 42.9% 1980 2 3 5 40.0% 2 4 6 33.3% — — — — — — — —
20 1976 7 4 11 63.6% 7 8 15 46.7% 0 1 1 0.0% 3 3 6 50.0% 1981 5 8 13 38.5% 9 11 20 45.0% — — — — 0 1 1 0.0%
21 1977 0 2 2 0.0% 11 13 24 45.8% 1 3 4 25.0% 5 9 14 35.7% 1982 1 5 6 16.7% 12 15 27 44.4% — — — — 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% 1983 2 3 5 40.0% 3 5 8 37.5% — — — — 2 1 3 66.7%
23 1979 26 8 34 76.5% 12 6 18 66.7% 4 2 6 66.7% 12 9 21 57.1% 1984 5 6 11 45.5% 6 11 17 35.3% 0 1 1 0.0% 2 3 5 40.0%
24 1980 19 4 23 82.6% 12 4 16 75.0% 4 1 5 80.0% 34 5 39 87.2% 1985 3 7 10 30.0% 2 6 8 25.0% 1 2 3 33.3% 1 3 4 25.0%
25 1981 18 3 21 85.7% 2 2 4 50.0% — — — — 17 3 20 85.0% 1986 1 8 9 11.1% 7 8 15 46.7% — — — — 2 2 4 50.0%
26 1982 17 6 23 73.9% 5 0 5 100.0% 4 1 5 80.0% 7 4 11 63.6% 1987 0 2 2 0.0% 0 3 3 0.0% — — — — — — — —
27 1983 17 5 22 77.3% — — — — — — — — 8 5 13 61.5% 1988 2 2 4 50.0% 1 3 4 25.0% — — — — — — — —
28 1984 5 4 9 55.6% 11 4 15 73.3% 0 1 1 0.0% 8 6 14 57.1% 1989 0 1 1 0.0% 5 7 12 41.7% — — — — 0 2 2 0.0%
29 1985 — — — — — — — — — — — — 2 1 3 66.7% 1990 — — — — 0 1 1 0.0% — — — — — — — —
30 1986 — — — — 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% — 21 46 67 31.3% 47 74 121 38.8% 1 3 4 25.0% 8 13 21 38.1%

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 Marko Ostoja
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 — — — — — — — — — — — — — — — —
18 — — — — — — — — — — — — — — — — 1979 1499 106.4 — — — — — — — 0.0% -4.00 — — — -0.25
19 1975 1541 117.6 — — — — +18 +30 — 38.9% -0.67 1–2 (33%) 2–2 (50%) — +0.55 1980 1506 104.6 — — — — +29 +20 — 32.1% -1.32 2–2 (50%) 1–2 (33%) — +0.93
20 1976 1703 134.8 — — — — -5 -55 — 50.7% +0.17 4–3 (57%) 2–5 (29%) — +1.87 1981 1590 139.5 — — — — -11 -4 — 46.4% -0.31 4–10 (29%) 8–4 (67%) — +0.33
21 1977 1693 140.3 — — — — -13 -6 -198 41.8% -0.74 5–3 (63%) 5–2 (71%) — -1.29 1982 1583 128.9 — — — — -25 +33 — 42.2% -0.79 7–7 (50%) 3–3 (50%) — +0.06
22 1978 1734 142.4 — — — — -21 +21 -205 60.8% +1.16 3–8 (27%) 3–6 (33%) — +2.25 1983 1586 107.2 — — — — -1 -10 — 35.5% -0.97 2–1 (67%) 0–3 (0%) — +1.99
23 1979 1982 164.8 — — — — +59 -89 -319 65.6% +1.04 10–9 (53%) 8–5 (62%) — -4.23 1984 1613 138.3 — — — — +51 -37 — 38.4% -0.71 8–7 (53%) 3–5 (38%) — -0.97
24 1980 2154 169.4 — — — — +68 -228 -359 78.3% +2.22 12–0 (100%) 9–5 (64%) — -2.23 1985 1547 119.5 — — — — +46 -28 -24 35.8% -1.07 2–5 (29%) 4–6 (40%) — -0.25
25 1981 2073 158.2 — — — — +97 -180 — 84.9% +2.44 2–4 (33%) 6–2 (75%) — +0.66 1986 1545 129.1 — — — — -18 +34 — 36.8% -0.79 5–5 (50%) 3–7 (30%) — -1.03
26 1982 2076 160.9 — — — — +32 -135 -210 75.5% +1.96 3–4 (43%) 6–6 (50%) — -2.35 1987 1483 97.7 — — — — — +49 — 9.1% -1.91 0–1 0–1 — +0.23
27 1983 1968 152.8 — — — — +26 — — 65.4% +0.98 6–1 (86%) 4–4 (50%) — -1.12 1988 1513 103.5 — — — — -2 -5 — 36.8% -1.21 2–1 (67%) 1–1 — -0.38
28 1984 1874 154.0 — — — — +82 +43 — 59.8% +0.67 5–3 (63%) 5–7 (42%) — -1.60 1989 1512 115.0 — — — — -23 +16 — 35.5% -1.19 2–1 (67%) 3–3 (50%) — +0.73
29 1985 1865 112.4 — — — — +71 — — 62.5% +1.13 1–1 — — +0.53 1990 1495 100.5 — — — — — — — 33.3% 0.00 0–1 — — +0.18
30 1986 1842 106.8 — — — — — — — 33.3% -1.67 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 — 1710 131.7 — — — — +11 +7 -24 38.3% -0.85 34–41 (45%) 26–35 (43%) 99.5 +0.74

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.