H2H data updated: 2026-09-07 00:00 UTC

Thomaz Koch vs Erik Van Dillen H2H: 3-1

Thomaz Koch holds a 3–1 lead over Erik Van Dillen in their ATP head-to-head. Across 4 main-draw meetings, Thomaz Koch leads 2–1 on hard courts and 1–0 on carpet. Most recently, Erik Van Dillen won the 1977 La Costa round of 64 6-3 6-1.

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Thomaz Koch
BRA Age 81 Left-Handed
H2H
3 – 1
4 main-draw meetings
Erik Van Dillen
USA Age 75 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Erik Van Dillen 6-3 6-1 Thomaz Koch #74 Match data Mar 23, 1977* R64 La Costa ATP 250 Hard
Thomaz Koch 6-3 6-3 Erik Van Dillen Match data Mar 12, 1973 RR Caracas ATP 250 Hard
Thomaz Koch 6-4 4-6 6-3 Erik Van Dillen Match data Feb 17, 1972* R32 Los Angeles ATP 250 Carpet
Thomaz Koch 7-6 7-5 Erik Van Dillen Match data Feb 5, 1972* R16 Omaha 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
Erik Van Dillen — — — 1,857 — — — 0 0 0 0 2 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 Erik Van Dillen
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 — — — — — — —
25 1970 18–15 54.5% — 1,804 0 4 — — — — — — —
26 1971 24–13 64.9% — 1,747 0 5 — — — — — — —
27 1972 19–17 52.8% — 1,706 0 6 — — — — — — —
28 1973 5–6 45.5% #204 1,698 0 6 — — — — — — —
29 1974 22–12 64.7% #24 1,863 0 6 — — — — — — —
30 1975 19–21 47.5% #62 1,768 0 6 — — — — — — —
31 1976 15–8 65.2% #58 1,815 0 6 — — — — — — —
32 1977 1–6 14.3% #94 1,715 0 6 — — — — — — —
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 — — — — — — —
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 Erik Van Dillen
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 %
17 — — — — — — — — — — — — — — — — — 1968 1 2 3 33.3% — — — — 3 1 4 75.0% — — — —
18 — — — — — — — — — — — — — — — — — 1969 0 3 3 0.0% 3 1 4 75.0% 2 5 7 28.6% — — — —
19 — — — — — — — — — — — — — — — — — 1970 1 6 7 14.3% 0 1 1 0.0% 0 1 1 0.0% 2 0 2 100.0%
20 — — — — — — — — — — — — — — — — — 1971 5 7 12 41.7% 5 2 7 71.4% 0 3 3 0.0% 0 1 1 0.0%
21 — — — — — — — — — — — — — — — — — 1972 6 4 10 60.0% — — — — 2 2 4 50.0% 5 3 8 62.5%
22 — — — — — — — — — — — — — — — — — 1973 6 2 8 75.0% 7 6 13 53.8% 5 2 7 71.4% 5 8 13 38.5%
23 1968 9 5 14 64.3% 18 9 27 66.7% 1 2 3 33.3% 1 1 2 50.0% 1974 2 6 8 25.0% 7 8 15 46.7% 2 3 5 40.0% 8 10 18 44.4%
24 1969 12 6 18 66.7% 12 3 15 80.0% 1 4 5 20.0% 9 5 14 64.3% 1975 5 6 11 45.5% 4 4 8 50.0% 1 2 3 33.3% 6 8 14 42.9%
25 1970 12 7 19 63.2% — — — — 1 2 3 33.3% 5 6 11 45.5% 1976 4 5 9 44.4% 6 11 17 35.3% 0 1 1 0.0% 4 5 9 44.4%
26 1971 6 4 10 60.0% 6 3 9 66.7% 5 3 8 62.5% 7 3 10 70.0% 1977 2 6 8 25.0% — — — — 3 3 6 50.0% 5 5 10 50.0%
27 1972 4 5 9 44.4% 2 4 6 33.3% 7 3 10 70.0% 6 5 11 54.5% 1978 5 5 10 50.0% 1 3 4 25.0% 3 1 4 75.0% 3 6 9 33.3%
28 1973 4 4 8 50.0% 1 1 2 50.0% 0 1 1 0.0% — — — — 1979 6 4 10 60.0% 0 2 2 0.0% — — — — 1 5 6 16.7%
29 1974 4 2 6 66.7% 12 7 19 63.2% 3 2 5 60.0% 3 1 4 75.0% 1980 6 6 12 50.0% 0 1 1 0.0% 0 2 2 0.0% 0 5 5 0.0%
30 1975 1 4 5 20.0% 12 11 23 52.2% 0 2 2 0.0% 6 4 10 60.0% 1981 2 3 5 40.0% 2 3 5 40.0% 3 2 5 60.0% — — — —
31 1976 3 1 4 75.0% 4 4 8 50.0% — — — — 8 3 11 72.7% 1982 0 2 2 0.0% — — — — — — — — — — — —
32 1977 0 2 2 0.0% 1 1 2 50.0% 0 1 1 0.0% 0 2 2 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% — — — — — — — — — — — — — — — — — — — — — — — — —
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% — 51 67 118 43.2% 35 42 77 45.5% 24 28 52 46.2% 39 56 95 41.1%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. 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 Erik Van Dillen
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
17 — — — — — — — — — — — — — — — — 1968 1551 103.4 — — — — -29 — +43 44.4% -0.56 1–0 — — -0.60
18 — — — — — — — — — — — — — — — — 1969 1509 115.4 — — — — +8 +71 +4 40.5% -0.35 1–3 (25%) — — +0.03
19 — — — — — — — — — — — — — — — — 1970 1553 117.9 — — — — +28 — — 43.8% -0.25 2–1 (67%) 2–0 — -0.35
20 — — — — — — — — — — — — — — — — 1971 1636 120.5 — — — — -77 +17 -151 44.8% -0.45 5–5 (50%) 5–2 (71%) 103.7 -0.66
21 — — — — — — — — — — — — — — — — 1972 1692 119.6 — — — — -10 — -186 52.7% +0.29 6–4 (60%) 2–3 (40%) 102.8 +1.48
22 — — — — — — — — — — — — — — — — 1973 1854 142.4 — — — — -103 -103 -217 55.4% +0.61 8–5 (62%) 4–7 (36%) 102.9 -3.69
23 1968 1672 129.3 — — — — -67 +38 -163 61.0% +1.12 5–9 (36%) — — +0.27 1974 1732 131.2 — — — — -57 +10 -81 47.0% -0.33 5–12 (29%) 9–6 (60%) 97.1 -2.17
24 1969 1796 127.3 — — — — +69 +56 -315 60.8% +0.65 10–7 (59%) — — +3.64 1975 1760 140.7 — — — — -39 -9 -140 47.1% -0.13 4–5 (44%) 9–11 (45%) 100.9 -3.70
25 1970 1804 127.6 — — — — +60 — — 53.9% +0.49 9–1 (90%) 0–2 — +1.66 1976 1694 140.9 — — — — +52 -37 — 41.2% -0.49 6–6 (50%) 6–7 (46%) 100.6 -2.46
26 1971 1748 129.9 — — — — +105 +80 -167 65.2% +0.90 3–6 (33%) 7–0 (100%) 100.9 +4.08 1977 1688 135.0 — — — — +11 — -76 41.8% -0.25 2–1 (67%) 4–6 (40%) 99.3 -1.07
27 1972 1706 128.0 — — — — +63 +56 -87 50.6% +0.08 3–6 (33%) 5–6 (45%) 94.9 +1.16 1978 1589 112.0 — — — — +11 +17 +91 43.7% -0.35 6–5 (55%) 3–6 (33%) 97.2 +3.46
28 1973 1698 118.0 — — — — +46 — — 52.0% -0.12 1–2 (33%) 3–0 (100%) — -0.13 1979 1635 132.0 — — — — +19 — — 40.9% -0.59 1–1 1–2 (33%) — +0.56
29 1974 1863 142.6 — — — — -34 -6 -203 61.5% +0.43 5–5 (50%) 7–2 (78%) 104.7 -2.09 1980 1605 121.8 — — — — +34 — — 31.9% -1.08 1–2 (33%) 3–5 (38%) 97.0 +0.02
30 1975 1769 140.3 — — — — +80 +16 — 49.5% +0.08 9–8 (53%) 4–5 (44%) 98.9 -1.45 1981 1625 121.4 — — — — +13 -54 +38 45.2% -0.38 4–2 (67%) 2–1 (67%) 104.2 +0.32
31 1976 1816 127.2 — — — — +53 -51 — 60.7% +0.64 5–2 (71%) 3–3 (50%) 102.5 +3.43 1982 1605 105.1 — — — — — — — 0.0% -3.50 — 0–1 — -0.16
32 1977 1715 108.6 — — — — +35 — — 31.8% -1.27 1–3 (25%) 1–1 — +0.02 — — — — — — — — — — — — — — — —
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%) 98.7 -0.22 — — — — — — — — — — — — — — — —
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 — 1858 137.5 — — — — -16 -23 -68 45.0% -0.26 52–52 (50%) 50–57 (47%) 102.0 -2.68

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.