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

Brian Teacher vs Thomaz Koch H2H: 1-0

Brian Teacher holds a 1–0 lead over Thomaz Koch in their ATP head-to-head. Across 1 main-draw meeting, Brian Teacher leads 1–0 on clay. Most recently, Brian Teacher won the 1981 Forest Hills Wct round of 32 6-3 6-3.

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Brian Teacher
USA Age 71 Right-Handed 190 cm / 6'3"
H2H
1 – 0
1 main draw meetings
Thomaz Koch
BRA Age 81 Left-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Brian Teacher #15 6-3 6-3 Thomaz Koch #53 Match data May 7, 1981* R32 Forest Hills Wct ATP 250 Clay

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
Thomaz Koch #857 #24 0 1,880 199 157 55.9% 0 0 0 0 6 6

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 Thomaz Koch
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1971 0–1 0.0% — 1,498 0 0 — — — — — — —
18 1973 6–6 50.0% #158 1,543 0 0 — — — — — — —
19 1974 9–7 56.2% #121 1,643 0 0 — — — — — — —
20 1975 5–9 35.7% #109 1,605 0 0 — — — — — — —
21 1976 11–12 47.8% #81 1,626 0 0 — — — — — — —
22 1977 31–31 50.0% #69 1,776 0 1 — — — — — — —
23 1978 38–23 62.3% #31 1,931 0 2 1968 29–17 63.0% — 1,672 0 1
24 1979 19–18 51.4% #59 1,809 0 3 1969 34–18 65.4% — 1,796 0 4
25 1980 63–26 70.8% #20 2,040 1 4 1970 18–15 54.5% — 1,804 0 4
26 1981 33–17 66.0% #9 1,989 1 5 1971 24–13 64.9% — 1,747 0 5
27 1982 42–20 67.7% #19 1,936 1 6 1972 19–17 52.8% — 1,706 0 6
28 1983 33–21 61.1% #29 1,823 1 8 1973 5–6 45.5% #204 1,698 0 6
29 1984 23–18 56.1% #53 1,764 1 8 1974 22–12 64.7% #24 1,863 0 6
30 1985 17–16 51.5% #66 1,709 1 8 1975 19–21 47.5% #62 1,768 0 6
31 1986 8–13 38.1% #104 1,619 1 8 1976 15–8 65.2% #58 1,815 0 6
32 — — — — — — — 1977 1–6 14.3% #94 1,715 0 6
34 — — — — — — — 1979 4–7 36.4% #85 1,665 0 6
35 — — — — — — — 1980 7–9 43.8% #49 1,654 0 6
36 — — — — — — — 1981 0–2 0.0% #90 1,630 0 6
37 — — — — — — — 1982 1–5 16.7% — 1,594 0 6
38 — — — — — — — 1983 1–1 50.0% #185 1,585 0 6

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 Thomaz Koch
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% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
18 1973 0 1 1 0.0% 2 2 4 50.0% 4 2 6 66.7% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
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% — — — — — — — — — — — — — — — — —
21 1976 5 2 7 71.4% 1 4 5 20.0% 4 3 7 57.1% 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% — — — — — — — — — — — — — — — — —
23 1978 8 5 13 61.5% 6 5 11 54.5% 2 4 6 33.3% 22 9 31 71.0% 1968 9 5 14 64.3% 18 9 27 66.7% 1 2 3 33.3% 1 1 2 50.0%
24 1979 5 8 13 38.5% 3 2 5 60.0% 10 2 12 83.3% 1 6 7 14.3% 1969 12 6 18 66.7% 12 3 15 80.0% 1 4 5 20.0% 9 5 14 64.3%
25 1980 24 9 33 72.7% 1 1 2 50.0% 19 5 24 79.2% 19 11 30 63.3% 1970 12 7 19 63.2% — — — — 1 2 3 33.3% 5 6 11 45.5%
26 1981 15 6 21 71.4% 1 2 3 33.3% 5 3 8 62.5% 12 6 18 66.7% 1971 6 4 10 60.0% 6 3 9 66.7% 5 3 8 62.5% 7 3 10 70.0%
27 1982 14 8 22 63.6% 5 3 8 62.5% 10 3 13 76.9% 13 6 19 68.4% 1972 4 5 9 44.4% 2 4 6 33.3% 7 3 10 70.0% 6 5 11 54.5%
28 1983 15 8 23 65.2% 4 3 7 57.1% 5 4 9 55.6% 9 6 15 60.0% 1973 4 4 8 50.0% 1 1 2 50.0% 0 1 1 0.0% — — — —
29 1984 6 6 12 50.0% 10 5 15 66.7% 6 3 9 66.7% 1 4 5 20.0% 1974 4 2 6 66.7% 12 7 19 63.2% 3 2 5 60.0% 3 1 4 75.0%
30 1985 10 7 17 58.8% 2 2 4 50.0% 4 4 8 50.0% 1 3 4 25.0% 1975 1 4 5 20.0% 12 11 23 52.2% 0 2 2 0.0% 6 4 10 60.0%
31 1986 1 5 6 16.7% 2 3 5 40.0% 1 2 3 33.3% 4 3 7 57.1% 1976 3 1 4 75.0% 4 4 8 50.0% — — — — 8 3 11 72.7%
32 — — — — — — — — — — — — — — — — — 1977 0 2 2 0.0% 1 1 2 50.0% 0 1 1 0.0% 0 2 2 0.0%
34 — — — — — — — — — — — — — — — — — 1979 1 3 4 25.0% 3 4 7 42.9% — — — — — — — —
35 — — — — — — — — — — — — — — — — — 1980 0 1 1 0.0% 3 4 7 42.9% 1 3 4 25.0% 3 1 4 75.0%
36 — — — — — — — — — — — — — — — — — 1981 0 1 1 0.0% 0 1 1 0.0% — — — — — — — —
37 — — — — — — — — — — — — — — — — — 1982 — — — — 1 3 4 25.0% — — — — 0 2 2 0.0%
38 — — — — — — — — — — — — — — — — — 1983 1 1 2 50.0% — — — — — — — — — — — —
Career — 115 79 194 59.3% 51 48 99 51.5% 85 46 131 64.9% 87 65 152 57.2% — 57 46 103 55.3% 75 55 130 57.7% 19 23 42 45.2% 48 33 81 59.3%

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 Thomaz Koch
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 — — — — — — — — — — — — — — — —
18 1973 1543 112.4 — — — — — +27 +52 51.6% +0.32 1–2 (33%) 1–5 (17%) — +0.59 — — — — — — — — — — — — — — — —
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 — — — — — — — — — — — — — — — —
21 1976 1627 123.5 — — — — -33 -97 +54 45.9% -0.30 5–2 (71%) 4–1 (80%) — +1.78 — — — — — — — — — — — — — — — —
22 1977 1777 149.1 — — — — -17 -184 -13 48.7% +0.02 12–10 (55%) 18–16 (53%) — -2.64 — — — — — — — — — — — — — — — —
23 1978 1932 149.6 — — — — +57 -242 -196 58.6% +0.46 9–6 (60%) 14–7 (67%) — +0.47 1968 1672 129.3 — — — — -67 +38 -163 61.0% +1.12 5–9 (36%) — — +0.27
24 1979 1810 139.2 — — — — -86 -114 +116 55.9% +0.48 2–8 (20%) 5–4 (56%) — -1.22 1969 1796 127.3 — — — — +69 +56 -315 60.8% +0.65 10–7 (59%) — — +3.64
25 1980 2040 150.6 — — — — -51 — -6 66.1% +0.85 14–10 (58%) 25–15 (63%) — -0.42 1970 1804 127.6 — — — — +60 — — 53.9% +0.49 9–1 (90%) 0–2 — +1.66
26 1981 1990 158.3 — — — — +59 -289 -34 65.3% +0.93 6–7 (46%) 10–6 (63%) — -3.77 1971 1748 129.9 — — — — +105 +80 -167 65.2% +0.90 3–6 (33%) 7–0 (100%) — +4.08
27 1982 1937 150.0 — — — — +50 -204 +48 63.3% +0.86 14–10 (58%) 7–10 (41%) — -0.52 1972 1706 128.0 — — — — +63 +56 -87 50.6% +0.08 3–6 (33%) 5–6 (45%) — +1.16
28 1983 1824 150.5 — — — — +71 -66 +115 55.9% +0.28 13–8 (62%) 16–11 (59%) — -2.56 1973 1698 118.0 — — — — +46 — — 52.0% -0.12 1–2 (33%) 3–0 (100%) — -0.13
29 1984 1765 145.1 — — — — +30 +34 +139 55.8% +0.52 8–11 (42%) 11–8 (58%) — -1.30 1974 1863 142.6 — — — — -34 -6 -203 61.5% +0.43 5–5 (50%) 7–2 (78%) — -2.09
30 1985 1709 134.8 — — — — +33 +72 +106 49.4% +0.21 7–4 (64%) 7–14 (33%) — -0.19 1975 1769 140.3 — — — — +80 +16 — 49.5% +0.08 9–8 (53%) 4–5 (44%) — -1.45
31 1986 1620 125.3 — — — — +59 +126 +148 38.9% -0.56 4–2 (67%) 5–5 (50%) — -0.30 1976 1816 127.2 — — — — +53 -51 — 60.7% +0.64 5–2 (71%) 3–3 (50%) — +3.43
32 — — — — — — — — — — — — — — — — 1977 1715 108.6 — — — — +35 — — 31.8% -1.27 1–3 (25%) 1–1 — +0.02
34 — — — — — — — — — — — — — — — — 1979 1665 115.2 — — — — +30 +52 — 42.3% -0.85 1–3 (25%) 1–0 — +0.07
35 — — — — — — — — — — — — — — — — 1980 1654 135.1 — — — — +61 +52 -47 46.3% -0.24 1–3 (25%) 3–2 (60%) — -0.22
36 — — — — — — — — — — — — — — — — 1981 1630 99.5 — — — — — — — 0.0% -2.75 — — — -0.20
37 — — — — — — — — — — — — — — — — 1982 1595 108.2 — — — — — +58 — 21.4% -2.21 0–1 0–1 — -0.55
38 — — — — — — — — — — — — — — — — 1983 1586 102.5 — — — — — — — 50.0% +0.75 — — — +0.52
Career — 2045 151.2 — — — — +14 -88 +35 56.5% +0.42 98–87 (53%) 126–109 (54%) 102.5 -1.64 — 1881 136.9 — — — — +50 +30 -156 55.5% +0.38 53–56 (49%) 34–22 (61%) 101.5 +2.93

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.