H2H data updated: 2026-09-02 00:00 UTC

Thomaz Koch vs Owen Davidson H2H: 1-0

Thomaz Koch holds a 1–0 lead over Owen Davidson in their ATP head-to-head. Across 1 main-draw meeting, Thomaz Koch leads 1–0 on grass. Most recently, Thomaz Koch won the 1974 US Open round of 64 6-3 7-6 7-5.

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Thomaz Koch
BRA Age 81 Left-Handed
H2H
1 – 0
1 main draw meetings
Owen Davidson
AUS Left-Handed 185 cm / 6'1"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Thomaz Koch 6-3 7-6 7-5 Owen Davidson Match data Sep 1, 1974* R64 US Open Grand Slam Grass

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
Owen Davidson #662 #73 0 1,806 89 111 44.5% 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 Owen Davidson
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
23 1968 29–17 63.0% — 1,672 0 1 — — — — — — —
24 1969 34–18 65.4% — 1,796 0 4 1968 8–6 57.1% — 1,530 0 0
25 1970 18–15 54.5% — 1,804 0 4 1969 14–12 53.8% — 1,660 0 0
26 1971 24–13 64.9% — 1,747 0 5 1970 23–24 48.9% — 1,667 0 0
27 1972 19–17 52.8% — 1,706 0 6 1971 21–29 42.0% — 1,684 0 0
28 1973 5–6 45.5% #204 1,698 0 6 1972 2–12 14.3% — 1,621 0 0
29 1974 22–12 64.7% #24 1,863 0 6 1973 15–12 55.6% #147 1,665 0 0
30 1975 19–21 47.5% #62 1,768 0 6 1974 5–13 27.8% #111 1,614 0 0
31 1976 15–8 65.2% #58 1,815 0 6 1975 1–1 50.0% #252 1,617 0 0
32 1977 1–6 14.3% #94 1,715 0 6 1976 0–1 0.0% #360 1,615 0 0
34 1979 4–7 36.4% #85 1,665 0 6 — — — — — — —
35 1980 7–9 43.8% #49 1,654 0 6 1979 0–1 0.0% #662 1,606 0 0
36 1981 0–2 0.0% #90 1,630 0 6 — — — — — — —
37 1982 1–5 16.7% — 1,594 0 6 — — — — — — —
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 Owen Davidson
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% — — — — — — — — — — — — — — — — —
24 1969 12 6 18 66.7% 12 3 15 80.0% 1 4 5 20.0% 9 5 14 64.3% 1968 0 2 2 0.0% 2 1 3 66.7% 2 2 4 50.0% 4 1 5 80.0%
25 1970 12 7 19 63.2% — — — — 1 2 3 33.3% 5 6 11 45.5% 1969 0 1 1 0.0% 7 5 12 58.3% 5 4 9 55.6% 2 2 4 50.0%
26 1971 6 4 10 60.0% 6 3 9 66.7% 5 3 8 62.5% 7 3 10 70.0% 1970 3 5 8 37.5% 3 5 8 37.5% 17 10 27 63.0% 0 4 4 0.0%
27 1972 4 5 9 44.4% 2 4 6 33.3% 7 3 10 70.0% 6 5 11 54.5% 1971 4 8 12 33.3% 2 8 10 20.0% 10 6 16 62.5% 5 7 12 41.7%
28 1973 4 4 8 50.0% 1 1 2 50.0% 0 1 1 0.0% — — — — 1972 1 2 3 33.3% 0 2 2 0.0% 1 2 3 33.3% 0 6 6 0.0%
29 1974 4 2 6 66.7% 12 7 19 63.2% 3 2 5 60.0% 3 1 4 75.0% 1973 3 2 5 60.0% 0 3 3 0.0% 12 4 16 75.0% 0 3 3 0.0%
30 1975 1 4 5 20.0% 12 11 23 52.2% 0 2 2 0.0% 6 4 10 60.0% 1974 3 5 8 37.5% 1 3 4 25.0% 1 2 3 33.3% 0 3 3 0.0%
31 1976 3 1 4 75.0% 4 4 8 50.0% — — — — 8 3 11 72.7% 1975 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% 1976 — — — — — — — — — — — — 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% 1979 0 1 1 0.0% — — — — — — — — — — — —
36 1981 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
37 1982 — — — — 1 3 4 25.0% — — — — 0 2 2 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% — 15 27 42 35.7% 15 27 42 35.7% 48 30 78 61.5% 11 27 38 28.9%

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 Owen Davidson
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 — — — — — — — — — — — — — — — —
24 1969 1796 127.3 — — — — +69 +56 -315 60.8% +0.65 10–7 (59%) — — +3.64 1968 1531 109.6 — — — — +18 +18 -41 50.0% +0.19 2–2 (50%) — — -0.14
25 1970 1804 127.6 — — — — +60 — — 53.9% +0.49 9–1 (90%) 0–2 — +1.66 1969 1661 127.4 — — — — -84 -9 -71 55.7% +0.71 3–3 (50%) — — -1.30
26 1971 1748 129.9 — — — — +105 +80 -167 65.2% +0.90 3–6 (33%) 7–0 (100%) — +4.08 1970 1667 136.1 — — — — -120 -53 +72 52.4% +0.23 4–8 (33%) 2–5 (29%) — -1.05
27 1972 1706 128.0 — — — — +63 +56 -87 50.6% +0.08 3–6 (33%) 5–6 (45%) — +1.16 1971 1685 139.9 — — — — -37 -124 +112 40.5% -0.57 3–5 (38%) 3–7 (30%) — -5.35
28 1973 1698 118.0 — — — — +46 — — 52.0% -0.12 1–2 (33%) 3–0 (100%) — -0.13 1972 1621 122.9 — — — — -39 — +125 18.2% -2.00 1–2 (33%) 2–2 (50%) — -1.30
29 1974 1863 142.6 — — — — -34 -6 -203 61.5% +0.43 5–5 (50%) 7–2 (78%) — -2.09 1973 1665 126.1 — — — — -70 -141 +127 55.9% +0.32 3–5 (38%) 2–1 (67%) — +0.45
30 1975 1769 140.3 — — — — +80 +16 — 49.5% +0.08 9–8 (53%) 4–5 (44%) — -1.45 1974 1615 121.5 — — — — -69 -106 +129 29.3% -1.17 0–3 (0%) 1–5 (17%) — -1.34
31 1976 1816 127.2 — — — — +53 -51 — 60.7% +0.64 5–2 (71%) 3–3 (50%) — +3.43 1975 1617 100.3 — — — — — — — 50.0% -0.50 — 1–0 — +0.34
32 1977 1715 108.6 — — — — +35 — — 31.8% -1.27 1–3 (25%) 1–1 — +0.02 1976 1616 108.2 — — — — — — — 33.3% -2.00 0–1 — — -0.29
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 1979 1607 99.1 — — — — — — — 0.0% -5.00 — — — -0.12
36 1981 1630 99.5 — — — — — — — 0.0% -2.75 — — — -0.20 — — — — — — — — — — — — — — — —
37 1982 1595 108.2 — — — — — +58 — 21.4% -2.21 0–1 0–1 — -0.55 — — — — — — — — — — — — — — — —
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 — 1806 135.9 — — — — -56 -64 +73 45.8% -0.19 16–29 (36%) 11–20 (35%) 93.7 -5.21

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.