H2H data updated: 2026-07-20 02:15 UTC
Thomaz Koch vs John Barrett H2H: 1-0
Thomaz Koch holds a 1–0 lead over John Barrett in their ATP head-to-head. Across 1 main-draw meeting, Thomaz Koch leads 1–0 on grass. Most recently, Thomaz Koch won the 1971 Manchester first round 6-4 8-6.
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H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| May 31, 1971 | Manchester | ATP 250 | R128 | Grass | Thomaz Koch | 6-4 8-6 | John Barrett | Match data |
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 |
| John Barrett | — | — | — | 1,500 | — | — | — | 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 | Thomaz Koch | John Barrett | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 23 | 1968 | 29–17 | 63.0% | — | 1,677 | 0 | 1 | — | — | — | — | — | — | — |
| 24 | 1969 | 34–18 | 65.4% | — | 1,799 | 0 | 4 | — | — | — | — | — | — | — |
| 25 | 1970 | 18–15 | 54.5% | — | 1,786 | 0 | 4 | — | — | — | — | — | — | — |
| 26 | 1971 | 24–13 | 64.9% | — | 1,717 | 0 | 5 | — | — | — | — | — | — | — |
| 27 | 1972 | 19–16 | 54.3% | — | 1,717 | 0 | 6 | — | — | — | — | — | — | — |
| 28 | 1973 | 5–6 | 45.5% | #204 | 1,704 | 0 | 6 | — | — | — | — | — | — | — |
| 29 | 1974 | 22–12 | 64.7% | #24 | 1,861 | 0 | 6 | — | — | — | — | — | — | — |
| 30 | 1975 | 20–22 | 47.6% | #62 | 1,743 | 0 | 6 | — | — | — | — | — | — | — |
| 31 | 1976 | 15–8 | 65.2% | #58 | 1,803 | 0 | 6 | — | — | — | — | — | — | — |
| 32 | 1977 | 1–6 | 14.3% | #263 | 1,706 | 0 | 6 | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — |