H2H data updated: 2026-09-06 00:00 UTC

Heinz Gunthardt vs Geoff Masters H2H: 1-0

Heinz Gunthardt holds a 1–0 lead over Geoff Masters in their ATP head-to-head. Across 1 main-draw meeting, Heinz Gunthardt leads 1–0 on hard courts. Most recently, Heinz Gunthardt won the 1978 US Open round of 128 6-3 7-6.

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Heinz Gunthardt
SUI Age 67 Right-Handed 180 cm / 5'11"
H2H
1 – 0
1 main-draw meetings
Geoff Masters
AUS Age 75 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Heinz Gunthardt #56 6-3 7-6 Geoff Masters #66 Match data Aug 31, 1978* 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
Heinz Gunthardt #1,013 #22 0 1,969 225 189 54.3% 0 0 0 0 5 5
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 Heinz Gunthardt Geoff Masters
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1976 1–4 20.0% #210 1,496 0 0 1968 2–2 50.0% — 1,511 0 0
18 1977 3–6 33.3% #234 1,509 0 0 1969 7–6 53.8% — 1,542 0 0
19 1978 25–25 50.0% #55 1,765 0 1 1970 10–7 58.8% — 1,581 0 0
20 1979 30–23 56.6% #51 1,815 0 1 1971 19–22 46.3% — 1,573 0 0
21 1980 37–21 63.8% #26 1,834 0 4 1972 18–18 50.0% — 1,670 0 0
22 1981 28–22 56.0% #38 1,813 0 4 1973 28–23 54.9% #52 1,756 0 0
23 1982 26–25 51.0% #85 1,722 0 4 1974 23–21 52.3% #53 1,766 0 1
24 1983 27–15 64.3% #25 1,853 0 5 1975 27–24 52.9% #44 1,812 0 1
25 1984 23–19 54.8% #31 1,779 0 5 1976 27–31 46.6% #53 1,780 0 2
26 1985 22–19 53.7% #36 1,820 0 5 1977 22–27 44.9% #83 1,662 0 2
27 1986 3–9 25.0% #251 1,671 0 5 1978 20–20 50.0% #59 1,701 0 2
28 1987 0–1 0.0% #954 1,664 0 5 1979 21–23 47.7% #62 1,728 0 2
29 — — — — — — — 1980 13–28 31.7% #166 1,517 0 2
30 — — — — — — — 1981 0–1 0.0% — 1,501 0 2

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 Heinz Gunthardt 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 1976 0 1 1 0.0% 1 2 3 33.3% — — — — 0 1 1 0.0% 1968 — — — — — — — — 2 2 4 50.0% — — — —
18 1977 0 2 2 0.0% 0 2 2 0.0% 1 1 2 50.0% 2 1 3 66.7% 1969 — — — — 3 3 6 50.0% 4 3 7 57.1% — — — —
19 1978 9 7 16 56.3% 9 12 21 42.9% 1 3 4 25.0% 6 3 9 66.7% 1970 — — — — 4 3 7 57.1% 6 4 10 60.0% — — — —
20 1979 15 9 24 62.5% 13 8 21 61.9% 1 1 2 50.0% 1 5 6 16.7% 1971 3 9 12 25.0% 5 6 11 45.5% 11 7 18 61.1% — — — —
21 1980 13 6 19 68.4% 11 5 16 68.8% 2 1 3 66.7% 11 9 20 55.0% 1972 11 5 16 68.8% 5 5 10 50.0% 2 7 9 22.2% 0 1 1 0.0%
22 1981 6 4 10 60.0% 15 10 25 60.0% 0 1 1 0.0% 7 7 14 50.0% 1973 8 4 12 66.7% 15 13 28 53.6% 5 6 11 45.5% — — — —
23 1982 2 3 5 40.0% 16 12 28 57.1% 0 1 1 0.0% 8 9 17 47.1% 1974 2 8 10 20.0% 11 5 16 68.8% 9 4 13 69.2% 1 4 5 20.0%
24 1983 10 4 14 71.4% 17 9 26 65.4% — — — — 0 2 2 0.0% 1975 9 9 18 50.0% 5 6 11 45.5% 6 3 9 66.7% 7 6 13 53.8%
25 1984 7 6 13 53.8% 12 6 18 66.7% 0 1 1 0.0% 4 6 10 40.0% 1976 11 6 17 64.7% 6 9 15 40.0% 3 5 8 37.5% 7 11 18 38.9%
26 1985 9 7 16 56.3% 6 5 11 54.5% 4 1 5 80.0% 3 6 9 33.3% 1977 15 11 26 57.7% 0 2 2 0.0% 5 9 14 35.7% 2 5 7 28.6%
27 1986 0 1 1 0.0% 1 5 6 16.7% 1 1 2 50.0% 1 2 3 33.3% 1978 7 5 12 58.3% 3 2 5 60.0% 4 4 8 50.0% 6 9 15 40.0%
28 1987 0 1 1 0.0% — — — — — — — — — — — — 1979 2 4 6 33.3% 4 3 7 57.1% 9 6 15 60.0% 6 10 16 37.5%
29 — — — — — — — — — — — — — — — — — 1980 2 6 8 25.0% 2 7 9 22.2% 1 6 7 14.3% 8 9 17 47.1%
30 — — — — — — — — — — — — — — — — — 1981 — — — — — — — — 0 1 1 0.0% — — — —
Career — 71 51 122 58.2% 101 76 177 57.1% 10 11 21 47.6% 43 51 94 45.7% — 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 use eligible main-draw results; point statistics use matches with detailed data. 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 Heinz Gunthardt 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 1976 1497 106.8 — — — — — +44 — 27.3% -2.09 0–1 0–1 — -0.14 1968 1511 104.2 — — — — — — +30 54.5% +0.45 — — — +0.07
18 1977 1510 115.1 — — — — +44 — — 40.0% -0.60 0–2 1–1 — +0.49 1969 1542 108.7 — — — — — +20 -1 53.1% +0.47 2–1 (67%) — — +1.09
19 1978 1766 146.9 — — — — +3 -145 -225 48.8% -0.21 10–7 (59%) 9–7 (56%) 107.7 -3.10 1970 1581 113.8 — — — — — +4 +1 48.9% +0.09 2–0 0–1 — +2.04
20 1979 1815 145.2 — — — — -9 -69 — 54.6% +0.22 11–8 (58%) 11–6 (65%) 106.3 -1.34 1971 1573 113.6 — — — — -110 +36 +80 44.4% -0.32 9–3 (75%) 1–3 (25%) 105.9 +2.45
21 1980 1835 148.3 — — — — +31 -59 -191 59.5% +0.48 12–8 (60%) 11–5 (69%) 105.9 -2.27 1972 1670 122.7 — — — — -2 -18 -123 48.0% +0.02 6–6 (50%) 3–4 (43%) 100.9 +1.43
22 1981 1813 148.5 — — — — -9 +4 — 53.1% +0.19 8–4 (67%) 8–6 (57%) 106.5 -2.56 1973 1756 140.1 — — — — 0 -38 -146 52.2% +0.18 11–7 (61%) 8–9 (47%) 106.0 -1.32
23 1982 1722 150.4 — — — — +6 +108 — 50.0% +0.01 5–3 (63%) 8–8 (50%) 100.4 -3.00 1974 1766 141.0 — — — — -125 +49 -11 52.2% +0.31 8–7 (53%) 3–6 (33%) 99.2 -2.52
24 1983 1853 151.4 — — — — -33 0 — 59.8% +0.76 10–9 (53%) 5–9 (36%) 96.3 -0.24 1975 1812 148.9 — — — — -23 -36 +8 53.0% +0.27 10–12 (45%) 6–8 (43%) 96.5 -3.09
25 1984 1779 140.1 — — — — -19 +105 — 50.5% +0.08 9–3 (75%) 10–13 (43%) 103.8 -0.50 1976 1781 148.0 — — — — +86 -91 -12 48.5% +0.04 4–8 (33%) 9–4 (69%) 99.7 -2.30
26 1985 1820 135.6 — — — — -43 -26 -105 50.0% +0.11 11–6 (65%) 6–11 (35%) 100.8 0.00 1977 1662 120.4 — — — — +90 — -42 44.1% -0.40 8–10 (44%) 6–9 (40%) 95.2 +2.97
27 1986 1672 117.2 — — — — +63 +24 — 38.2% -0.35 0–4 (0%) 2–7 (22%) 88.0 +0.03 1978 1701 140.0 — — — — +47 -24 -35 51.0% +0.09 5–8 (38%) 5–5 (50%) 95.9 +1.79
28 1987 1665 110.5 — — — — — — — 33.3% -0.67 0–1 — — -0.32 1979 1729 143.8 — — — — -31 -3 -1 48.1% -0.11 8–8 (50%) 8–7 (53%) 102.7 -2.12
29 — — — — — — — — — — — — — — — — 1980 1518 124.9 — — — — +79 +146 +101 36.6% -0.87 4–8 (33%) 8–8 (50%) 94.8 -0.05
30 — — — — — — — — — — — — — — — — 1981 1501 94.8 — — — — — — — 0.0% -4.00 — — — +0.19
Career — 1970 150.7 — — — — -3 -2 -167 52.3% +0.15 76–56 (58%) 71–74 (49%) 103.5 -3.13 — 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.