H2H data updated: 2026-09-04 00:00 UTC

William Brown vs Hans Joachim Ploetz H2H: 0-1

Hans Joachim Ploetz holds a 1–0 lead over William Brown in their ATP head-to-head. Across 1 main-draw meeting, Hans Joachim Ploetz leads 1–0 on clay. Most recently, Hans Joachim Ploetz won the 1975 Canadian Open round of 32 3-6 6-3 6-4.

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William Brown
USA Age 81 Right-Handed
H2H
0 – 1
1 main draw meetings
Hans Joachim Ploetz
GER Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Hans Joachim Ploetz 3-6 6-3 6-4 William Brown Match data Aug 14, 1975* R32 Canadian Open ATP 500 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
William Brown #436 #86 0 1,555 28 81 25.7% 0 0 0 0 0 0
Hans Joachim Ploetz #281 #65 0 1,645 73 98 42.7% 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.

William Brown Hans Joachim Ploetz
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 2–6 25.0% — 1,442 0 0 1968 15–12 55.6% — 1,523 0 0
1969 2–5 28.6% — 1,448 0 0 1969 18–16 52.9% — 1,600 0 0
1970 1–7 12.5% — 1,425 0 0 1970 12–18 40.0% — 1,596 0 0
1971 1–6 14.3% — 1,415 0 0 1971 2–5 28.6% — 1,559 0 0
1972 3–8 27.3% — 1,440 0 0 1972 2–5 28.6% — 1,526 0 0
1973 2–12 14.3% #224 1,409 0 0 1973 2–5 28.6% — 1,508 0 0
1974 11–19 36.7% #86 1,549 0 0 1974 5–9 35.7% #95 1,563 0 0
1975 5–16 23.8% #165 1,485 0 0 1975 15–18 45.5% #76 1,615 0 0
1976 1–1 50.0% #239 1,511 0 0 1976 2–10 16.7% #185 1,514 0 0
1977 0–1 0.0% #366 1,492 0 0 — — — — — — —

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.

William Brown Hans Joachim Ploetz
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 %
1968 — — — — 1 2 3 33.3% 1 4 5 20.0% — — — — 1968 5 4 9 55.6% 8 5 13 61.5% 0 2 2 0.0% 2 1 3 66.7%
1969 2 2 4 50.0% 0 3 3 0.0% — — — — — — — — 1969 4 4 8 50.0% 8 7 15 53.3% 3 2 5 60.0% 3 3 6 50.0%
1970 0 5 5 0.0% — — — — 1 2 3 33.3% — — — — 1970 0 3 3 0.0% 10 10 20 50.0% 2 2 4 50.0% 0 3 3 0.0%
1971 0 4 4 0.0% 1 1 2 50.0% — — — — 0 1 1 0.0% 1971 — — — — 1 4 5 20.0% 1 1 2 50.0% — — — —
1972 0 2 2 0.0% 0 1 1 0.0% 2 3 5 40.0% 1 2 3 33.3% 1972 1 1 2 50.0% 0 1 1 0.0% 1 3 4 25.0% — — — —
1973 1 5 6 16.7% 1 1 2 50.0% 0 5 5 0.0% 0 1 1 0.0% 1973 — — — — 0 1 1 0.0% 2 4 6 33.3% — — — —
1974 1 3 4 25.0% 3 7 10 30.0% 3 4 7 42.9% 4 5 9 44.4% 1974 — — — — 5 8 13 38.5% 0 1 1 0.0% — — — —
1975 0 2 2 0.0% 2 6 8 25.0% 0 1 1 0.0% 3 7 10 30.0% 1975 — — — — 14 17 31 45.2% — — — — 1 1 2 50.0%
1976 1 1 2 50.0% — — — — — — — — — — — — 1976 0 3 3 0.0% 2 6 8 25.0% 0 1 1 0.0% — — — —
1977 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
Career 5 24 29 17.2% 8 22 30 26.7% 7 19 26 26.9% 8 16 24 33.3% Career 10 15 25 40.0% 48 59 107 44.9% 9 16 25 36.0% 6 8 14 42.9%

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.

William Brown Hans Joachim Ploetz
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 1443 97.1 — — — — — +51 -1 31.6% -0.95 0–1 — — +0.02 1968 1524 101.0 — — — — +24 +27 — 46.0% -0.57 4–1 (80%) — — +0.31
1969 1449 101.9 — — — — +135 +5 — 29.4% -1.29 1–1 — — -0.32 1969 1601 114.3 — — — — -8 -13 -51 50.0% +0.09 7–5 (58%) — — +1.53
1970 1426 102.9 — — — — +83 — +34 31.8% -1.32 0–3 (0%) — — +0.14 1970 1597 116.7 — — — — -108 +21 -49 37.7% -0.62 4–2 (67%) — — +0.09
1971 1415 98.5 — — — — +22 — — 21.4% -1.64 1–1 0–1 — +0.06 1971 1559 105.2 — — — — — +5 — 37.5% -1.58 0–1 0–1 — +0.29
1972 1441 106.2 — — — — +6 — +72 37.0% -0.63 1–2 (33%) 1–3 (25%) 97.4 +0.30 1972 1526 106.1 — — — — — — +20 31.6% -1.37 1–2 (33%) 1–1 — +0.13
1973 1410 107.0 — — — — +31 — +18 24.2% -1.79 1–2 (33%) 3–3 (50%) 99.0 +0.02 1973 1508 106.9 — — — — — — +4 12.5% -2.37 — — — -0.48
1974 1550 114.9 — — — — -55 -68 -71 37.7% -1.26 1–3 (25%) 6–5 (55%) 99.7 +0.71 1974 1563 120.7 — — — — — +8 — 37.5% -0.82 3–2 (60%) 3–0 (100%) 105.8 -0.61
1975 1486 110.8 — — — — -1 -31 — 28.8% -1.54 4–3 (57%) 4–4 (50%) 102.6 +1.07 1975 1615 117.7 — — — — — 0 — 44.7% -0.47 6–4 (60%) 4–5 (44%) 103.8 +3.22
1976 1512 113.7 — — — — — — — 40.0% -0.20 1–0 1–0 — -0.37 1976 1515 102.4 — — — — -53 +34 — 22.6% -1.74 1–2 (33%) — — +0.60
1977 1493 94.5 — — — — — — — 0.0% -3.00 — 0–1 — +0.28 — — — — — — — — — — — — — — — —
Career 1556 110.6 — — — — +11 -32 +2 31.5% -1.32 10–16 (38%) 15–17 (47%) 97.3 +1.80 Career 1645 115.7 — — — — -18 +9 -18 40.4% -0.69 26–19 (58%) 8–7 (53%) 108.8 +3.04

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.