H2H data updated: 2026-07-19 14:15 UTC
Thomaz Koch vs Zan Guerry H2H: 2-0
Thomaz Koch holds a 2–0 lead over Zan Guerry in their ATP head-to-head. Across 2 main-draw meetings, Thomaz Koch leads 1–0 on clay and 1–0 on hard courts. Most recently, Thomaz Koch won the 1969 Barcelona second round 5-7 0-6 6-4 6-3 6-3.
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BRA
Age 81
Left-Handed
H2H
2
–
0
2 main draw meetings
USA
Age 77
Right-Handed
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| May 14, 1969* | Barcelona | ATP 250 | R64 | Clay | Thomaz Koch | 5-7 0-6 6-4 6-3 6-3 | Zan Guerry | Match data |
| Feb 13, 1969* | Salisbury | ATP 250 | R32 | Hard | Thomaz Koch | 6-1 7-5 | Zan Guerry | 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 |
| Zan Guerry | #490 | #98 | 0 | 1,599 | 42 | 78 | 35.0% | 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 | Thomaz Koch | Zan Guerry | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 19 | — | — | — | — | — | — | — | 1968 | 5–7 | 41.7% | — | 1,479 | 0 | 0 |
| 20 | — | — | — | — | — | — | — | 1969 | 8–10 | 44.4% | — | 1,528 | 0 | 0 |
| 21 | — | — | — | — | — | — | — | 1970 | 1–4 | 20.0% | — | 1,494 | 0 | 0 |
| 22 | — | — | — | — | — | — | — | 1971 | 4–6 | 40.0% | — | 1,524 | 0 | 0 |
| 23 | 1968 | 29–17 | 63.0% | — | 1,677 | 0 | 1 | 1972 | 5–7 | 41.7% | — | 1,521 | 0 | 0 |
| 24 | 1969 | 34–18 | 65.4% | — | 1,799 | 0 | 4 | 1973 | 3–5 | 37.5% | #203 | 1,522 | 0 | 0 |
| 25 | 1970 | 18–15 | 54.5% | — | 1,786 | 0 | 4 | 1974 | 1–1 | 50.0% | #228 | 1,542 | 0 | 0 |
| 26 | 1971 | 24–13 | 64.9% | — | 1,717 | 0 | 5 | 1975 | 2–2 | 50.0% | #205 | 1,570 | 0 | 0 |
| 27 | 1972 | 19–16 | 54.3% | — | 1,717 | 0 | 6 | 1976 | 0–6 | 0.0% | #176 | 1,504 | 0 | 0 |
| 28 | 1973 | 5–6 | 45.5% | #204 | 1,704 | 0 | 6 | 1977 | 8–16 | 33.3% | #109 | 1,563 | 0 | 0 |
| 29 | 1974 | 22–12 | 64.7% | #24 | 1,861 | 0 | 6 | 1978 | 2–7 | 22.2% | #279 | 1,522 | 0 | 0 |
| 30 | 1975 | 20–22 | 47.6% | #62 | 1,743 | 0 | 6 | 1979 | 1–3 | 25.0% | #326 | 1,517 | 0 | 0 |
| 31 | 1976 | 15–8 | 65.2% | #58 | 1,803 | 0 | 6 | 1980 | 1–2 | 33.3% | — | 1,501 | 0 | 0 |
| 32 | 1977 | 1–6 | 14.3% | #263 | 1,706 | 0 | 6 | 1981 | 0–1 | 0.0% | #594 | 1,494 | 0 | 0 |
| 33 | — | — | — | — | — | — | — | 1982 | 1–1 | 50.0% | — | 1,515 | 0 | 0 |
| 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 | — | — | — | — | — | — | — |