H2H data updated: 2026-09-01 00:00 UTC

Thomaz Koch vs Jim Osborne H2H: 4-2

Thomaz Koch holds a 4–2 lead over Jim Osborne in their ATP head-to-head. Across 6 main-draw meetings, Thomaz Koch leads 3–1 on hard courts and 1–0 on carpet. Most recently, Thomaz Koch won the 1973 San Juan round robin 7-6 6-3.

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Thomaz Koch
BRA Age 81 Left-Handed
H2H
4 – 2
6 main draw meetings
Jim Osborne
USA Age 81 Right-Handed 185 cm / 6'1"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Thomaz Koch 7-6 6-3 Jim Osborne Match data Mar 5, 1973 RR San Juan ATP 250 Hard
Thomaz Koch 7-6 6-3 Jim Osborne Match data Sep 5, 1972* R16 South Orange ATP 250 Hard
Jim Osborne 6-3 1-6 6-4 6-3 Thomaz Koch Match data Sep 5, 1971* R64 US Open Grand Slam Grass
Thomaz Koch 6-2 6-4 Jim Osborne Match data Jan 31, 1971* R16 Omaha ATP 250 Carpet
Jim Osborne 8-6 6-2 Thomaz Koch Match data Feb 2, 1970* SF Omaha ATP 250 Hard
Thomaz Koch 6-4 6-4 Jim Osborne Match data Oct 3, 1969* R16 Berkeley ATP 250 Hard

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
Jim Osborne #831 #211 0 1,811 118 121 49.4% 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 Jim Osborne
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
23 1968 29–17 63.0% — 1,672 0 1 1968 35–24 59.3% — 1,634 0 0
24 1969 34–18 65.4% — 1,796 0 4 1969 29–17 63.0% — 1,743 0 0
25 1970 18–15 54.5% — 1,804 0 4 1970 26–29 47.3% — 1,665 0 0
26 1971 24–13 64.9% — 1,747 0 5 1971 15–19 44.1% — 1,717 0 0
27 1972 19–17 52.8% — 1,706 0 6 1972 8–20 28.6% — 1,525 0 0
28 1973 5–6 45.5% #204 1,698 0 6 1973 0–4 0.0% — 1,500 0 0
29 1974 22–12 64.7% #24 1,863 0 6 1974 3–2 60.0% #228 1,553 0 0
30 1975 19–21 47.5% #62 1,768 0 6 1975 0–1 0.0% #308 1,550 0 0
31 1976 15–8 65.2% #58 1,815 0 6 1976 2–2 50.0% #211 1,575 0 0
32 1977 1–6 14.3% #94 1,715 0 6 — — — — — — —
33 — — — — — — — 1978 0–1 0.0% #465 1,573 0 0
34 1979 4–7 36.4% #85 1,665 0 6 — — — — — — —
35 1980 7–9 43.8% #49 1,654 0 6 — — — — — — —
36 1981 0–2 0.0% #90 1,630 0 6 1981 0–1 0.0% — 1,555 0 0
37 1982 1–5 16.7% — 1,594 0 6 1982 0–1 0.0% — 1,542 0 0
38 1983 1–1 50.0% #185 1,585 0 6 — — — — — — —

Surface Results by Age

Seasons are aligned by the age each player spent most of that calendar year. 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.

Age Thomaz Koch Jim Osborne
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
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 %
23 1968 9 5 14 64.3% 18 9 27 66.7% 1 2 3 33.3% 1 1 2 50.0% 1968 19 12 31 61.3% 4 3 7 57.1% 11 8 19 57.9% 1 1 2 50.0%
24 1969 12 6 18 66.7% 12 3 15 80.0% 1 4 5 20.0% 9 5 14 64.3% 1969 8 5 13 61.5% 7 4 11 63.6% 8 5 13 61.5% 6 3 9 66.7%
25 1970 12 7 19 63.2% — — — — 1 2 3 33.3% 5 6 11 45.5% 1970 16 12 28 57.1% 5 8 13 38.5% 4 5 9 44.4% 1 4 5 20.0%
26 1971 6 4 10 60.0% 6 3 9 66.7% 5 3 8 62.5% 7 3 10 70.0% 1971 7 10 17 41.2% 2 4 6 33.3% 4 2 6 66.7% 2 3 5 40.0%
27 1972 4 5 9 44.4% 2 4 6 33.3% 7 3 10 70.0% 6 5 11 54.5% 1972 3 6 9 33.3% 1 5 6 16.7% 0 3 3 0.0% 4 6 10 40.0%
28 1973 4 4 8 50.0% 1 1 2 50.0% 0 1 1 0.0% — — — — 1973 0 4 4 0.0% — — — — — — — — — — — —
29 1974 4 2 6 66.7% 12 7 19 63.2% 3 2 5 60.0% 3 1 4 75.0% 1974 1 1 2 50.0% — — — — — — — — 2 1 3 66.7%
30 1975 1 4 5 20.0% 12 11 23 52.2% 0 2 2 0.0% 6 4 10 60.0% 1975 0 1 1 0.0% — — — — — — — — — — — —
31 1976 3 1 4 75.0% 4 4 8 50.0% — — — — 8 3 11 72.7% 1976 1 1 2 50.0% — — — — — — — — 1 1 2 50.0%
32 1977 0 2 2 0.0% 1 1 2 50.0% 0 1 1 0.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — —
33 — — — — — — — — — — — — — — — — — 1978 0 1 1 0.0% — — — — — — — — — — — —
34 1979 1 3 4 25.0% 3 4 7 42.9% — — — — — — — — — — — — — — — — — — — — — — — — —
35 1980 0 1 1 0.0% 3 4 7 42.9% 1 3 4 25.0% 3 1 4 75.0% — — — — — — — — — — — — — — — — —
36 1981 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — 1981 0 1 1 0.0% — — — — — — — — — — — —
37 1982 — — — — 1 3 4 25.0% — — — — 0 2 2 0.0% 1982 0 1 1 0.0% — — — — — — — — — — — —
38 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% — 55 55 110 50.0% 19 24 43 44.2% 27 23 50 54.0% 17 19 36 47.2%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. 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.

Age Thomaz Koch Jim Osborne
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
23 1968 1672 129.3 — — — — -67 +38 -163 61.0% +1.12 5–9 (36%) — — +0.27 1968 1634 115.0 — — — — +72 -103 -46 57.0% +0.47 7–9 (44%) — — -0.30
24 1969 1796 127.3 — — — — +69 +56 -315 60.8% +0.65 10–7 (59%) — — +3.64 1969 1744 126.2 — — — — +78 -107 -67 58.3% +0.69 8–2 (80%) — — +1.41
25 1970 1804 127.6 — — — — +60 — — 53.9% +0.49 9–1 (90%) 0–2 — +1.66 1970 1665 122.6 — — — — +52 -115 +4 46.3% -0.07 9–10 (47%) 4–3 (57%) — +2.54
26 1971 1748 129.9 — — — — +105 +80 -167 65.2% +0.90 3–6 (33%) 7–0 (100%) — +4.08 1971 1717 116.9 — — — — -83 -182 +67 49.3% -0.23 1–3 (25%) 9–7 (56%) — +0.99
27 1972 1706 128.0 — — — — +63 +56 -87 50.6% +0.08 3–6 (33%) 5–6 (45%) — +1.16 1972 1525 122.7 — — — — +64 -28 +142 38.9% -0.29 1–10 (9%) 1–12 (8%) — +1.15
28 1973 1698 118.0 — — — — +46 — — 52.0% -0.12 1–2 (33%) 3–0 (100%) — -0.13 1973 1501 104.3 — — — — +40 — — 11.1% -1.67 0–1 1–2 (33%) — -0.09
29 1974 1863 142.6 — — — — -34 -6 -203 61.5% +0.43 5–5 (50%) 7–2 (78%) — -2.09 1974 1553 112.6 — — — — +29 — — 58.3% +0.42 1–1 2–1 (67%) — +0.21
30 1975 1769 140.3 — — — — +80 +16 — 49.5% +0.08 9–8 (53%) 4–5 (44%) — -1.45 1975 1550 104.5 — — — — — — — 0.0% -3.00 — — — -0.16
31 1976 1816 127.2 — — — — +53 -51 — 60.7% +0.64 5–2 (71%) 3–3 (50%) — +3.43 1976 1576 112.5 — — — — +12 — — 50.0% +0.17 2–2 (50%) — — -0.11
32 1977 1715 108.6 — — — — +35 — — 31.8% -1.27 1–3 (25%) 1–1 — +0.02 — — — — — — — — — — — — — — — —
33 — — — — — — — — — — — — — — — — 1978 1574 109.5 — — — — — — — 0.0% -3.50 — — — -0.24
34 1979 1665 115.2 — — — — +30 +52 — 42.3% -0.85 1–3 (25%) 1–0 — +0.07 — — — — — — — — — — — — — — — —
35 1980 1654 135.1 — — — — +61 +52 -47 46.3% -0.24 1–3 (25%) 3–2 (60%) — -0.22 — — — — — — — — — — — — — — — —
36 1981 1630 99.5 — — — — — — — 0.0% -2.75 — — — -0.20 1981 1556 95.7 — — — — — — — 0.0% -3.00 — — — +0.19
37 1982 1595 108.2 — — — — — +58 — 21.4% -2.21 0–1 0–1 — -0.55 1982 1543 98.8 — — — — — — — 0.0% -3.50 — — — +0.07
38 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 — 1812 123.5 — — — — +39 -108 -18 49.9% +0.11 29–38 (43%) 17–25 (40%) 93.8 +2.40

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.