H2H data updated: 2026-07-19 02:51 UTC

Thomaz Koch vs Tom Okker H2H: 1-1

Thomaz Koch and Tom Okker are tied 1–1 in their ATP head-to-head. Across 2 main-draw meetings, Thomaz Koch leads 1–0 on clay, while Tom Okker leads 1–0 on grass. Most recently, Thomaz Koch won the 1974 Tehran quarterfinal 7-6 7-6.

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Thomaz Koch
BRA Age 81 Left-Handed
H2H
1 – 1
2 main draw meetings
Tom Okker
NED Age 82 Right-Handed 177 cm / 5'10"

H2H Match Log

DateTournamentCategoryRoundSurfaceWinnerScoreLoserMatch
Nov 1, 1974* Tehran ATP 250 QF Clay Thomaz Koch #44 7-6 7-6 Tom Okker #5 Match data
Sep 3, 1974* US Open Grand Slam R32 Grass Tom Okker #5 4-6 6-2 6-3 5-7 6-4 Thomaz Koch #63 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
Tom Okker #438 #3 0 2,198 672 279 70.7% 0 2 0 0 35 37

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 Tom Okker
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 89–23 79.5% — 1,796 0 7
25 1970 18–15 54.5% — 1,786 0 4 1969 86–25 77.5% — 2,009 0 15
26 1971 24–13 64.9% — 1,717 0 5 1970 59–27 68.6% — 1,948 0 20
27 1972 19–16 54.3% — 1,717 0 6 1971 74–31 70.5% — 2,007 0 22
28 1973 5–6 45.5% #204 1,704 0 6 1972 69–31 69.0% — 2,041 0 23
29 1974 22–12 64.7% #24 1,861 0 6 1973 91–23 79.8% #4 2,166 0 30
30 1975 20–22 47.6% #62 1,743 0 6 1974 65–19 77.4% #6 2,061 0 33
31 1976 15–8 65.2% #58 1,803 0 6 1975 39–13 75.0% #11 2,068 0 35
32 1977 1–6 14.3% #263 1,706 0 6 1976 33–18 64.7% #23 1,956 0 35
33 — — — — — — — 1977 15–13 53.6% #31 1,931 0 36
34 1979 4–7 36.4% #85 1,658 0 6 1978 20–20 50.0% #50 1,879 0 36
35 1980 7–9 43.8% #49 1,651 0 6 1979 20–18 52.6% #56 1,772 0 37
36 1981 0–2 0.0% #90 1,627 0 6 1980 11–13 45.8% #107 1,715 0 37
37 1982 1–5 16.7% #240 1,592 0 6 1981 1–5 16.7% #107 1,651 0 37
38 1983 1–1 50.0% #185 1,583 0 6 — — — — — — —