Thomaz Koch
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Arthur Ashe | 3 | 5 | 8 | Aug 8, 1975 | H2H |
| Clark Graebner | 3 | 5 | 8 | Jun 21, 1972 | H2H |
| Manuel Orantes | 3 | 4 | 7 | Jun 28, 1974 | H2H |
| Ilie Nastase | 0 | 6 | 6 | Aug 16, 1975 | H2H |
| Cliff Richey | 3 | 3 | 6 | Jun 18, 1975 | H2H |
H2H data updated: 2026-09-03 00:00 UTC
Thomaz Koch vs Jan Kallquist H2H: 1-0
Thomaz Koch holds a 1–0 lead over Jan Kallquist in their ATP head-to-head. Across 1 main-draw meeting, Thomaz Koch leads 1–0 on clay. Most recently, Thomaz Koch won the 1975 Swedish Open round of 32 6-4 6-3.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Thomaz Koch | 6-4 6-3 | Jan Kallquist | Match data | Jul 10, 1975* | R32 | Swedish Open | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thomaz Koch | #857 | #24 | 0 | 1,880 | 199 | 157 | 55.9% | 0 | 0 | 0 | 0 | 6 | 6 |
| Jan Kallquist | #743 | #177 | 0 | 1,500 | 0 | 13 | 0.0% | 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.
| Thomaz Koch | Jan Kallquist | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 29–17 | 63.0% | — | 1,672 | 0 | 1 | 1974 | 0–1 | 0.0% | #318 | 1,485 | 0 | 0 |
| 1969 | 34–18 | 65.4% | — | 1,796 | 0 | 4 | 1975 | 0–2 | 0.0% | #264 | 1,478 | 0 | 0 |
| 1970 | 18–15 | 54.5% | — | 1,804 | 0 | 4 | 1976 | 0–1 | 0.0% | #360 | 1,467 | 0 | 0 |
| 1971 | 24–13 | 64.9% | — | 1,747 | 0 | 5 | 1977 | 0–2 | 0.0% | #300 | 1,434 | 0 | 0 |
| 1972 | 19–17 | 52.8% | — | 1,706 | 0 | 6 | 1978 | 0–2 | 0.0% | #465 | 1,429 | 0 | 0 |
| 1973 | 5–6 | 45.5% | #204 | 1,698 | 0 | 6 | 1979 | 0–2 | 0.0% | #177 | 1,425 | 0 | 0 |
| 1974 | 22–12 | 64.7% | #24 | 1,863 | 0 | 6 | 1980 | 0–2 | 0.0% | #365 | 1,400 | 0 | 0 |
| 1975 | 19–21 | 47.5% | #62 | 1,768 | 0 | 6 | 1982 | 0–1 | 0.0% | — | 1,396 | 0 | 0 |
| 1976 | 15–8 | 65.2% | #58 | 1,815 | 0 | 6 | — | — | — | — | — | — | — |
| 1977 | 1–6 | 14.3% | #94 | 1,715 | 0 | 6 | — | — | — | — | — | — | — |
| 1979 | 4–7 | 36.4% | #85 | 1,665 | 0 | 6 | — | — | — | — | — | — | — |
| 1980 | 7–9 | 43.8% | #49 | 1,654 | 0 | 6 | — | — | — | — | — | — | — |
| 1981 | 0–2 | 0.0% | #90 | 1,630 | 0 | 6 | — | — | — | — | — | — | — |
| 1982 | 1–5 | 16.7% | — | 1,594 | 0 | 6 | — | — | — | — | — | — | — |
| 1983 | 1–1 | 50.0% | #185 | 1,585 | 0 | 6 | — | — | — | — | — | — | — |
Surface Results by Career Season
Rows are aligned in career order because complete birth data is unavailable. 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.
| Thomaz Koch | Jan Kallquist | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | Carpet | ||||||||||||||||||||||||
| 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 % | ||
| 1968 | 9 | 5 | 14 | 64.3% | 18 | 9 | 27 | 66.7% | 1 | 2 | 3 | 33.3% | 1 | 1 | 2 | 50.0% | 1974 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 1969 | 12 | 6 | 18 | 66.7% | 12 | 3 | 15 | 80.0% | 1 | 4 | 5 | 20.0% | 9 | 5 | 14 | 64.3% | 1975 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 1970 | 12 | 7 | 19 | 63.2% | — | — | — | — | 1 | 2 | 3 | 33.3% | 5 | 6 | 11 | 45.5% | 1976 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 1971 | 6 | 4 | 10 | 60.0% | 6 | 3 | 9 | 66.7% | 5 | 3 | 8 | 62.5% | 7 | 3 | 10 | 70.0% | 1977 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 1972 | 4 | 5 | 9 | 44.4% | 2 | 4 | 6 | 33.3% | 7 | 3 | 10 | 70.0% | 6 | 5 | 11 | 54.5% | 1978 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 1973 | 4 | 4 | 8 | 50.0% | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1979 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 1974 | 4 | 2 | 6 | 66.7% | 12 | 7 | 19 | 63.2% | 3 | 2 | 5 | 60.0% | 3 | 1 | 4 | 75.0% | 1980 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 1975 | 1 | 4 | 5 | 20.0% | 12 | 11 | 23 | 52.2% | 0 | 2 | 2 | 0.0% | 6 | 4 | 10 | 60.0% | 1982 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 1976 | 3 | 1 | 4 | 75.0% | 4 | 4 | 8 | 50.0% | — | — | — | — | 8 | 3 | 11 | 72.7% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1977 | 0 | 2 | 2 | 0.0% | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1979 | 1 | 3 | 4 | 25.0% | 3 | 4 | 7 | 42.9% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1980 | 0 | 1 | 1 | 0.0% | 3 | 4 | 7 | 42.9% | 1 | 3 | 4 | 25.0% | 3 | 1 | 4 | 75.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1981 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1982 | — | — | — | — | 1 | 3 | 4 | 25.0% | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1983 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 57 | 46 | 103 | 55.3% | 75 | 55 | 130 | 57.7% | 19 | 23 | 42 | 45.2% | 48 | 33 | 81 | 59.3% | Career | 0 | 7 | 7 | 0.0% | 0 | 4 | 4 | 0.0% | — | — | — | — | 0 | 2 | 2 | 0.0% |
Advanced Statistics Comparison by Career Season
Rows are aligned in career order because complete birth data is unavailable. 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.
| Thomaz Koch | Jan Kallquist | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1968 | 1672 | 129.3 | — | — | — | — | -67 | +38 | -163 | 61.0% | +1.12 | 5–9 (36%) | — | — | +0.27 | 1974 | 1486 | 92.7 | — | — | — | — | — | — | — | 0.0% | -5.00 | — | — | — | +0.13 |
| 1969 | 1796 | 127.3 | — | — | — | — | +69 | +56 | -315 | 60.8% | +0.65 | 10–7 (59%) | — | — | +3.64 | 1975 | 1479 | 108.7 | — | — | — | — | — | — | — | 0.0% | -2.75 | — | — | — | -0.27 |
| 1970 | 1804 | 127.6 | — | — | — | — | +60 | — | — | 53.9% | +0.49 | 9–1 (90%) | 0–2 | — | +1.66 | 1976 | 1467 | 97.1 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | +0.08 |
| 1971 | 1748 | 129.9 | — | — | — | — | +105 | +80 | -167 | 65.2% | +0.90 | 3–6 (33%) | 7–0 (100%) | — | +4.08 | 1977 | 1434 | 96.8 | — | — | — | — | — | — | — | 20.0% | -0.60 | 0–1 | 0–1 | — | +0.59 |
| 1972 | 1706 | 128.0 | — | — | — | — | +63 | +56 | -87 | 50.6% | +0.08 | 3–6 (33%) | 5–6 (45%) | — | +1.16 | 1978 | 1429 | 108.5 | — | — | — | — | — | — | — | 20.0% | -2.40 | 0–1 | — | — | -0.18 |
| 1973 | 1698 | 118.0 | — | — | — | — | +46 | — | — | 52.0% | -0.12 | 1–2 (33%) | 3–0 (100%) | — | -0.13 | 1979 | 1425 | 107.5 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | -0.21 |
| 1974 | 1863 | 142.6 | — | — | — | — | -34 | -6 | -203 | 61.5% | +0.43 | 5–5 (50%) | 7–2 (78%) | — | -2.09 | 1980 | 1400 | 98.3 | — | — | — | — | — | — | — | 20.0% | -1.20 | 0–1 | — | — | +0.42 |
| 1975 | 1769 | 140.3 | — | — | — | — | +80 | +16 | — | 49.5% | +0.08 | 9–8 (53%) | 4–5 (44%) | — | -1.45 | 1982 | 1396 | 99.2 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | -0.02 |
| 1976 | 1816 | 127.2 | — | — | — | — | +53 | -51 | — | 60.7% | +0.64 | 5–2 (71%) | 3–3 (50%) | — | +3.43 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1977 | 1715 | 108.6 | — | — | — | — | +35 | — | — | 31.8% | -1.27 | 1–3 (25%) | 1–1 | — | +0.02 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1979 | 1665 | 115.2 | — | — | — | — | +30 | +52 | — | 42.3% | -0.85 | 1–3 (25%) | 1–0 | — | +0.07 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1980 | 1654 | 135.1 | — | — | — | — | +61 | +52 | -47 | 46.3% | -0.24 | 1–3 (25%) | 3–2 (60%) | — | -0.22 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1981 | 1630 | 99.5 | — | — | — | — | — | — | — | 0.0% | -2.75 | — | — | — | -0.20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1982 | 1595 | 108.2 | — | — | — | — | — | +58 | — | 21.4% | -2.21 | 0–1 | 0–1 | — | -0.55 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1983 | 1586 | 102.5 | — | — | — | — | — | — | — | 50.0% | +0.75 | — | — | — | +0.52 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1881 | 136.9 | — | — | — | — | +50 | +30 | -156 | 55.5% | +0.38 | 53–56 (49%) | 34–22 (61%) | 101.5 | +2.93 | Career | 1500 | 103.5 | — | — | — | — | — | — | — | 10.3% | -2.48 | 0–3 (0%) | 0–1 | — | +4.15 |
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.
Jan Kallquist
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Henri Leconte | 0 | 1 | 1 | Nov 3, 1982 | H2H |
| Ulf Eriksson | 0 | 1 | 1 | Nov 7, 1980 | H2H |
| Mats Wilander | 0 | 1 | 1 | Jul 17, 1980 | H2H |
| Tomas Smid | 0 | 1 | 1 | Nov 7, 1979 | H2H |
| Stan Smith | 0 | 1 | 1 | Sep 20, 1979 | H2H |