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

Robbie Venter vs John Marks H2H: 1-0

Robbie Venter holds a 1–0 lead over John Marks in their ATP head-to-head. Across 1 main-draw meeting, Robbie Venter leads 1–0 on hard courts. Most recently, Robbie Venter won the 1977 Johannesburg round of 32 7-5 7-5.

RSA Left-Handed 180 cm / 5'11"
H2H
1 0
1 main draw meetings
AUS Age 73 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Robbie Venter 7-5 7-5 John Marks Match data Mar 11, 1977* R32 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
Robbie Venter #800 #87 0 1,556 7 19 26.9% 0 0 0 0 0 0
John Marks #223 #60 0 1,632 30 81 27.0% 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 Robbie Venter John Marks
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1976 0–1 0.0% #360 1,484 0 0
17 1977 2–1 66.7% #194 1,518 0 0 1970 1–1 50.0% 1,486 0 0
18 1971 1–2 33.3% 1,471 0 0
20 1980 0–1 0.0% #224 1,512 0 0 1973 0–1 0.0% 1,454 0 0
21 1981 3–4 42.9% 1,538 0 0 1974 1–3 25.0% 1,434 0 0
22 1982 0–1 0.0% 1,528 0 0 1975 5–1 83.3% #330 1,554 0 0
23 1983 2–9 18.2% #92 1,487 0 0 1976 3–15 16.7% #165 1,438 0 0
24 1984 0–2 0.0% #320 1,467 0 0 1977 4–13 23.5% #174 1,434 0 0
25 1978 9–16 36.0% #63 1,629 0 0
26 1979 4–26 13.3% #115 1,457 0 0
27 1980 2–3 40.0% #223 1,460 0 0

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 Robbie Venter John Marks
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 %
16 1976 0 1 1 0.0%
17 1977 2 1 3 66.7% 1970 1 1 2 50.0%
18 1971 1 2 3 33.3%
20 1980 0 1 1 0.0% 1973 0 1 1 0.0%
21 1981 3 4 7 42.9% 1974 1 3 4 25.0%
22 1982 0 1 1 0.0% 1975 5 1 6 83.3%
23 1983 0 2 2 0.0% 2 6 8 25.0% 0 1 1 0.0% 1976 1 6 7 14.3% 2 5 7 28.6% 0 4 4 0.0%
24 1984 0 1 1 0.0% 0 1 1 0.0% 1977 0 2 2 0.0% 1 5 6 16.7% 3 6 9 33.3%
25 1978 0 2 2 0.0% 2 7 9 22.2% 7 6 13 53.8% 0 1 1 0.0%
26 1979 1 5 6 16.7% 1 9 10 10.0% 2 8 10 20.0% 0 4 4 0.0%
27 1980 2 1 3 66.7% 0 1 1 0.0% 0 1 1 0.0%
Career 2 7 9 22.2% 5 11 16 31.2% 0 1 1 0.0% 4 16 20 20.0% 6 26 32 18.8% 20 33 53 37.7% 0 6 6 0.0%

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 Robbie Venter John Marks
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
16 1976 1484 98.3 33.3% -1.67 0–1 +0.24
17 1977 1518 106.5 +54 57.1% -0.43 1–0 0–1 +0.43 1970 1486 100.6 0.0% -2.00 +0.07
18 1971 1471 103.7 +31 37.5% -0.63 1–2 (33%) +0.18
20 1980 1513 104.1 0.0% -3.00 0–1 -0.05 1973 1454 +0.15
21 1981 1539 114.3 +1 47.4% -0.42 2–3 (40%) 2–1 (67%) -0.11 1974 1434 96.4 +7 30.0% -1.60 1–1 1–0 +0.27
22 1982 1528 103.4 33.3% 0.00 0–1 0.00 1975 1554 121.6 +44 62.5% +0.12 4–0 (100%) 2–0 +0.10
23 1983 1487 111.1 +33 25.9% -1.45 1–2 (33%) 0–3 (0%) -0.40 1976 1439 102.4 +49 +81 +84 27.3% -1.68 0–4 (0%) 1–1 +1.65
24 1984 1468 98.4 0.0% -3.50 +0.05 1977 1434 105.6 +63 +34 30.4% -1.52 3–4 (43%) 2–3 (40%) +0.56
25 1978 1630 130.5 -206 -118 +65 35.9% -0.81 3–0 (100%) 0–6 (0%) -0.89
26 1979 1457 112.2 -86 -22 +140 19.4% -2.11 2–5 (29%) 1–6 (14%) +0.37
27 1980 1460 100.7 -68 41.7% -0.50 1–1 +0.91
Career 1556 113.2 +54 +18 33.8% -1.16 4–7 (36%) 2–6 (25%) 95.8 +0.62 1632 116.6 -59 -11 +67 30.7% -1.37 14–15 (48%) 8–18 (31%) 101.0 +3.06

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.