H2H data updated: 2026-07-18 17:48 UTC

Thomaz Koch vs Clark Graebner H2H: 3-5

Clark Graebner holds a 5–3 lead over Thomaz Koch in their ATP head-to-head. Across 8 main-draw meetings, they are tied 2–2 on hard courts, while they are tied 1–1 on carpet. Most recently, Clark Graebner won the 1972 Bristol fourth round 6-1 4-6 7-5.

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Thomaz Koch
BRA Age 81 Left-Handed
H2H
3 – 5
8 main draw meetings
Clark Graebner
USA Age 82 Right-Handed 188 cm / 6'2"

H2H Match Log

DateTournamentCategoryRoundSurfaceWinnerScoreLoserMatch
Jun 21, 1972* Bristol ATP 250 R16 Grass Clark Graebner 6-1 4-6 7-5 Thomaz Koch Match data
May 26, 1972* Roland Garros Grand Slam R64 Clay Clark Graebner 6-2 6-0 6-2 Thomaz Koch Match data
Mar 6, 1971* Macon ATP 250 QF Hard Clark Graebner 6-2 3-6 7-5 Thomaz Koch Match data
Oct 2, 1970* Berkeley ATP 250 R16 Hard Thomaz Koch 6-3 6-1 Clark Graebner Match data
Mar 7, 1970* Hampton ATP 250 SF Carpet Thomaz Koch 4-6 10-8 4-6 6-3 6-3 Clark Graebner Match data
Feb 2, 1970* Omaha ATP 250 QF Hard Thomaz Koch 9-7 6-1 Clark Graebner Match data
Feb 6, 1969* Richmond ATP 250 F Carpet Clark Graebner 6-3 10-12 9-7 Thomaz Koch Match data
Jan 13, 1968* Bloemfontein ATP 250 QF Hard Clark Graebner 6-8 6-2 6-1 Thomaz Koch Match data

* Estimated match date where the exact historical date is unavailable.

Career Comparison

Player Current Peak Pts Elo W L Win % GS 1000 Finals 500 250 Titles
Thomaz Koch #857 #24 0 1,873 200 157 56.0% 0 0 0 0 6 6
Clark Graebner #199 #45 0 2,015 342 162 67.9% 0 0 0 0 12 12

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 Thomaz Koch Clark Graebner
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
23 1968 29–17 63.0% — 1,677 0 1 — — — — — — —
24 1969 34–18 65.4% — 1,799 0 4 1968 74–22 77.1% — 1,820 0 2
25 1970 18–15 54.5% — 1,786 0 4 1969 49–14 77.8% — 1,842 0 6
26 1971 24–13 64.9% — 1,717 0 5 1970 58–28 67.4% — 1,839 0 8
27 1972 19–16 54.3% — 1,717 0 6 1971 75–29 72.1% — 1,878 0 11
28 1973 5–6 45.5% #204 1,704 0 6 1972 33–22 60.0% — 1,812 0 11
29 1974 22–12 64.7% #24 1,861 0 6 1973 34–19 64.2% #48 1,768 0 12
30 1975 20–22 47.6% #62 1,743 0 6 1974 11–14 44.0% #99 1,685 0 12
31 1976 15–8 65.2% #58 1,803 0 6 1975 8–11 42.1% #120 1,580 0 12
32 1977 1–6 14.3% #263 1,706 0 6 1976 0–3 0.0% #199 1,537 0 12
34 1979 4–7 36.4% #85 1,658 0 6 — — — — — — —
35 1980 7–9 43.8% #49 1,651 0 6 — — — — — — —
36 1981 0–2 0.0% #90 1,627 0 6 — — — — — — —
37 1982 1–5 16.7% #240 1,592 0 6 — — — — — — —
38 1983 1–1 50.0% #185 1,583 0 6 — — — — — — —