H2H data updated: 2026-09-01 00:00 UTC

Brian Teacher vs John Marks H2H: 1-0

Brian Teacher holds a 1–0 lead over John Marks in their ATP head-to-head. Across 1 main-draw meeting, Brian Teacher leads 1–0 on grass. Most recently, Brian Teacher won the 1977 Sydney International round of 32 6-2 3-6 6-3.

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Brian Teacher
USA Age 71 Right-Handed 190 cm / 6'3"
H2H
1 – 0
1 main draw meetings
John Marks
AUS Age 73 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Brian Teacher #69 6-2 3-6 6-3 John Marks Match data Dec 15, 1977* R32 Sydney International ATP 250 Grass

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
Brian Teacher #938 #7 0 2,044 338 238 58.7% 1 0 0 0 7 8
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 Brian Teacher John Marks
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1971 0–1 0.0% — 1,498 0 0 — — — — — — —
17 — — — — — — — 1970 1–1 50.0% — 1,486 0 0
18 1973 6–6 50.0% #158 1,543 0 0 1971 1–2 33.3% — 1,471 0 0
19 1974 9–7 56.2% #121 1,643 0 0 — — — — — — —
20 1975 5–9 35.7% #109 1,605 0 0 1973 0–1 0.0% — 1,454 0 0
21 1976 11–12 47.8% #81 1,626 0 0 1974 1–3 25.0% — 1,434 0 0
22 1977 31–31 50.0% #69 1,776 0 1 1975 5–1 83.3% #330 1,554 0 0
23 1978 38–23 62.3% #31 1,931 0 2 1976 3–15 16.7% #165 1,438 0 0
24 1979 19–18 51.4% #59 1,809 0 3 1977 4–13 23.5% #174 1,434 0 0
25 1980 63–26 70.8% #20 2,040 1 4 1978 9–16 36.0% #63 1,629 0 0
26 1981 33–17 66.0% #9 1,989 1 5 1979 4–26 13.3% #115 1,457 0 0
27 1982 42–20 67.7% #19 1,936 1 6 1980 2–3 40.0% #223 1,460 0 0
28 1983 33–21 61.1% #29 1,823 1 8 — — — — — — —
29 1984 23–18 56.1% #53 1,764 1 8 — — — — — — —
30 1985 17–16 51.5% #66 1,709 1 8 — — — — — — —
31 1986 8–13 38.1% #104 1,619 1 8 — — — — — — —

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 Brian Teacher 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 1971 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
17 — — — — — — — — — — — — — — — — — 1970 — — — — — — — — 1 1 2 50.0% — — — —
18 1973 0 1 1 0.0% 2 2 4 50.0% 4 2 6 66.7% 0 1 1 0.0% 1971 — — — — — — — — 1 2 3 33.3% — — — —
19 1974 1 2 3 33.3% 3 3 6 50.0% 5 2 7 71.4% — — — — — — — — — — — — — — — — — — — — —
20 1975 1 3 4 25.0% 4 4 8 50.0% — — — — 0 2 2 0.0% 1973 — — — — — — — — 0 1 1 0.0% — — — —
21 1976 5 2 7 71.4% 1 4 5 20.0% 4 3 7 57.1% 1 3 4 25.0% 1974 — — — — — — — — 1 3 4 25.0% — — — —
22 1977 10 8 18 55.6% 7 9 16 43.8% 10 9 19 52.6% 4 5 9 44.4% 1975 — — — — — — — — 5 1 6 83.3% — — — —
23 1978 8 5 13 61.5% 6 5 11 54.5% 2 4 6 33.3% 22 9 31 71.0% 1976 1 6 7 14.3% 2 5 7 28.6% 0 4 4 0.0% — — — —
24 1979 5 8 13 38.5% 3 2 5 60.0% 10 2 12 83.3% 1 6 7 14.3% 1977 0 2 2 0.0% 1 5 6 16.7% 3 6 9 33.3% — — — —
25 1980 24 9 33 72.7% 1 1 2 50.0% 19 5 24 79.2% 19 11 30 63.3% 1978 0 2 2 0.0% 2 7 9 22.2% 7 6 13 53.8% 0 1 1 0.0%
26 1981 15 6 21 71.4% 1 2 3 33.3% 5 3 8 62.5% 12 6 18 66.7% 1979 1 5 6 16.7% 1 9 10 10.0% 2 8 10 20.0% 0 4 4 0.0%
27 1982 14 8 22 63.6% 5 3 8 62.5% 10 3 13 76.9% 13 6 19 68.4% 1980 2 1 3 66.7% — — — — 0 1 1 0.0% 0 1 1 0.0%
28 1983 15 8 23 65.2% 4 3 7 57.1% 5 4 9 55.6% 9 6 15 60.0% — — — — — — — — — — — — — — — — —
29 1984 6 6 12 50.0% 10 5 15 66.7% 6 3 9 66.7% 1 4 5 20.0% — — — — — — — — — — — — — — — — —
30 1985 10 7 17 58.8% 2 2 4 50.0% 4 4 8 50.0% 1 3 4 25.0% — — — — — — — — — — — — — — — — —
31 1986 1 5 6 16.7% 2 3 5 40.0% 1 2 3 33.3% 4 3 7 57.1% — — — — — — — — — — — — — — — — —
Career — 115 79 194 59.3% 51 48 99 51.5% 85 46 131 64.9% 87 65 152 57.2% — 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 Brian Teacher 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 1971 1498 107.4 — — — — — — — 0.0% -1.50 — 0–1 — -0.29 — — — — — — — — — — — — — — — —
17 — — — — — — — — — — — — — — — — 1970 1486 100.6 — — — — — — — 0.0% -2.00 — — — +0.07
18 1973 1543 112.4 — — — — — +27 +52 51.6% +0.32 1–2 (33%) 1–5 (17%) — +0.59 1971 1471 103.7 — — — — — — +31 37.5% -0.63 — 1–2 (33%) — +0.18
19 1974 1643 119.1 — — — — -109 -72 +29 52.6% +0.05 2–3 (40%) 2–1 (67%) — +0.83 — — — — — — — — — — — — — — — —
20 1975 1605 117.1 — — — — -123 -8 — 42.4% -0.42 1–4 (20%) 1–5 (17%) — +0.12 1973 1454 — — — — — — — — — — — — — +0.15
21 1976 1627 123.5 — — — — -33 -97 +54 45.9% -0.30 5–2 (71%) 4–1 (80%) — +1.78 1974 1434 96.4 — — — — — — +7 30.0% -1.60 1–1 1–0 — +0.27
22 1977 1777 149.1 — — — — -17 -184 -13 48.7% +0.02 12–10 (55%) 18–16 (53%) — -2.64 1975 1554 121.6 — — — — — — +44 62.5% +0.12 4–0 (100%) 2–0 — +0.10
23 1978 1932 149.6 — — — — +57 -242 -196 58.6% +0.46 9–6 (60%) 14–7 (67%) — +0.47 1976 1439 102.4 — — — — +49 +81 +84 27.3% -1.68 0–4 (0%) 1–1 — +1.65
24 1979 1810 139.2 — — — — -86 -114 +116 55.9% +0.48 2–8 (20%) 5–4 (56%) — -1.22 1977 1434 105.6 — — — — — +63 +34 30.4% -1.52 3–4 (43%) 2–3 (40%) — +0.56
25 1980 2040 150.6 — — — — -51 — -6 66.1% +0.85 14–10 (58%) 25–15 (63%) — -0.42 1978 1630 130.5 — — — — -206 -118 +65 35.9% -0.81 3–0 (100%) 0–6 (0%) — -0.89
26 1981 1990 158.3 — — — — +59 -289 -34 65.3% +0.93 6–7 (46%) 10–6 (63%) — -3.77 1979 1457 112.2 — — — — -86 -22 +140 19.4% -2.11 2–5 (29%) 1–6 (14%) — +0.37
27 1982 1937 150.0 — — — — +50 -204 +48 63.3% +0.86 14–10 (58%) 7–10 (41%) — -0.52 1980 1460 100.7 — — — — -68 — — 41.7% -0.50 1–1 — — +0.91
28 1983 1824 150.5 — — — — +71 -66 +115 55.9% +0.28 13–8 (62%) 16–11 (59%) — -2.56 — — — — — — — — — — — — — — — —
29 1984 1765 145.1 — — — — +30 +34 +139 55.8% +0.52 8–11 (42%) 11–8 (58%) — -1.30 — — — — — — — — — — — — — — — —
30 1985 1709 134.8 — — — — +33 +72 +106 49.4% +0.21 7–4 (64%) 7–14 (33%) — -0.19 — — — — — — — — — — — — — — — —
31 1986 1620 125.3 — — — — +59 +126 +148 38.9% -0.56 4–2 (67%) 5–5 (50%) — -0.30 — — — — — — — — — — — — — — — —
Career — 2045 151.2 — — — — +14 -88 +35 56.5% +0.42 98–87 (53%) 126–109 (54%) 102.5 -1.64 — 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.