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

Heinz Gunthardt vs Willem Prinsloo H2H: 1-0

Heinz Gunthardt holds a 1–0 lead over Willem Prinsloo 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 1979 Johannesburg round of 16 3-6 6-2 6-2.

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Heinz Gunthardt
SUI Age 67 Right-Handed 180 cm / 5'11"
H2H
1 – 0
1 main-draw meetings
Willem Prinsloo
RSA Left-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Heinz Gunthardt #64 3-6 6-2 6-2 Willem Prinsloo Match data Apr 20, 1979* R16 Johannesburg 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
Heinz Gunthardt #1,013 #22 0 1,969 225 189 54.3% 0 0 0 0 5 5
Willem Prinsloo #332 #81 0 1,549 13 33 28.3% 0 0 0 0 0 0

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 Willem Prinsloo
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1976 1–4 20.0% #210 1,496 0 0 1971 1–1 50.0% — 1,516 0 0
18 1977 3–6 33.3% #234 1,509 0 0 1972 0–1 0.0% — 1,488 0 0
19 1978 25–25 50.0% #55 1,765 0 1 — — — — — — —
20 1979 30–23 56.6% #51 1,815 0 1 — — — — — — —
21 1980 37–21 63.8% #26 1,834 0 4 1975 1–1 50.0% #282 1,491 0 0
22 1981 28–22 56.0% #38 1,813 0 4 1976 3–1 75.0% #154 1,547 0 0
23 1982 26–25 51.0% #85 1,722 0 4 1977 4–15 21.1% #97 1,502 0 0
24 1983 27–15 64.3% #25 1,853 0 5 1978 3–5 37.5% #122 1,501 0 0
25 1984 23–19 54.8% #31 1,779 0 5 1979 1–9 10.0% #265 1,428 0 0
26 1985 22–19 53.7% #36 1,820 0 5 — — — — — — —
27 1986 3–9 25.0% #251 1,671 0 5 — — — — — — —
28 1987 0–1 0.0% #954 1,664 0 5 — — — — — — —

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 Willem Prinsloo
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% 1971 1 1 2 50.0% — — — — — — — — — — — —
18 1977 0 2 2 0.0% 0 2 2 0.0% 1 1 2 50.0% 2 1 3 66.7% 1972 0 1 1 0.0% — — — — — — — — — — — —
19 1978 9 7 16 56.3% 9 12 21 42.9% 1 3 4 25.0% 6 3 9 66.7% — — — — — — — — — — — — — — — — —
20 1979 15 9 24 62.5% 13 8 21 61.9% 1 1 2 50.0% 1 5 6 16.7% — — — — — — — — — — — — — — — — —
21 1980 13 6 19 68.4% 11 5 16 68.8% 2 1 3 66.7% 11 9 20 55.0% 1975 — — — — 1 1 2 50.0% — — — — — — — —
22 1981 6 4 10 60.0% 15 10 25 60.0% 0 1 1 0.0% 7 7 14 50.0% 1976 3 1 4 75.0% — — — — — — — — — — — —
23 1982 2 3 5 40.0% 16 12 28 57.1% 0 1 1 0.0% 8 9 17 47.1% 1977 1 1 2 50.0% 3 12 15 20.0% 0 2 2 0.0% — — — —
24 1983 10 4 14 71.4% 17 9 26 65.4% — — — — 0 2 2 0.0% 1978 2 3 5 40.0% — — — — — — — — 1 2 3 33.3%
25 1984 7 6 13 53.8% 12 6 18 66.7% 0 1 1 0.0% 4 6 10 40.0% 1979 1 5 6 16.7% 0 3 3 0.0% — — — — 0 1 1 0.0%
26 1985 9 7 16 56.3% 6 5 11 54.5% 4 1 5 80.0% 3 6 9 33.3% — — — — — — — — — — — — — — — — —
27 1986 0 1 1 0.0% 1 5 6 16.7% 1 1 2 50.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — —
28 1987 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% — 8 12 20 40.0% 4 16 20 20.0% 0 2 2 0.0% 1 3 4 25.0%

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 Willem Prinsloo
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 1971 1517 101.3 — — — — — — — 42.9% -0.71 — 0–1 — -0.26
18 1977 1510 115.1 — — — — +44 — — 40.0% -0.60 0–2 1–1 — +0.49 1972 1488 98.1 — — — — — — — 25.0% -0.75 — — — +0.04
19 1978 1766 146.9 — — — — +3 -145 -225 48.8% -0.21 10–7 (59%) 9–7 (56%) 107.7 -3.10 — — — — — — — — — — — — — — — —
20 1979 1815 145.2 — — — — -9 -69 — 54.6% +0.22 11–8 (58%) 11–6 (65%) 106.3 -1.34 — — — — — — — — — — — — — — — —
21 1980 1835 148.3 — — — — +31 -59 -191 59.5% +0.48 12–8 (60%) 11–5 (69%) 105.9 -2.27 1975 1491 103.1 — — — — — — — 60.0% +0.60 0–1 1–0 — +0.33
22 1981 1813 148.5 — — — — -9 +4 — 53.1% +0.19 8–4 (67%) 8–6 (57%) 106.5 -2.56 1976 1547 115.5 — — — — +58 — — 66.7% +1.00 1–0 — — +0.34
23 1982 1722 150.4 — — — — +6 +108 — 50.0% +0.01 5–3 (63%) 8–8 (50%) 100.4 -3.00 1977 1503 110.5 — — — — — +2 — 23.3% -2.23 1–2 (33%) 2–1 (67%) 101.4 +0.24
24 1983 1853 151.4 — — — — -33 0 — 59.8% +0.76 10–9 (53%) 5–9 (36%) 96.3 -0.24 1978 1501 102.5 — — — — +87 — — 36.8% -1.26 2–1 (67%) 2–0 — +1.33
25 1984 1779 140.1 — — — — -19 +105 — 50.5% +0.08 9–3 (75%) 10–13 (43%) 103.8 -0.50 1979 1428 101.7 — — — — +79 +29 — 26.9% -1.69 0–5 (0%) — — +0.82
26 1985 1820 135.6 — — — — -43 -26 -105 50.0% +0.11 11–6 (65%) 6–11 (35%) 100.8 0.00 — — — — — — — — — — — — — — — —
27 1986 1672 117.2 — — — — +63 +24 — 38.2% -0.35 0–4 (0%) 2–7 (22%) 88.0 +0.03 — — — — — — — — — — — — — — — —
28 1987 1665 110.5 — — — — — — — 33.3% -0.67 0–1 — — -0.32 — — — — — — — — — — — — — — — —
Career — 1970 150.7 — — — — -3 -2 -167 52.3% +0.15 76–56 (58%) 71–74 (49%) 103.5 -3.13 — 1550 109.6 — — — — +78 +7 — 32.7% -1.41 4–9 (31%) 5–2 (71%) 97.4 +6.17

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.