H2H data updated: 2026-08-15 02:40 UTC

William Brown vs Robert Kreiss H2H: 1-0

William Brown holds a 1–0 lead over Robert Kreiss in their ATP head-to-head. Across 1 main-draw meeting, William Brown leads 1–0 on clay. Most recently, William Brown won the 1975 Canadian Open round of 64 6-2 5-7 7-6.

USA Age 81 Right-Handed
H2H
1 0
1 main draw meetings

H2H Match Log

WinnerScoreLoserMatch DataDateRoundTournamentCategorySurface
William Brown #113 6-2 5-7 7-6 Robert Kreiss Match data Aug 13, 1975* R64 Canadian Open Masters 1000 Clay

* Estimated match date where the exact historical date is unavailable.

Career Comparison

Player Current Peak Pts Elo W L Win % GS 1000 Finals 500 250 Titles
William Brown #436 #86 0 1,556 28 82 25.5% 0 0 0 0 0 0
Robert Kreiss 1,559 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 Robert Kreiss
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 2–6 25.0% 1,444 0 0
1969 2–5 28.6% 1,450 0 0
1970 1–7 12.5% 1,426 0 0
1971 1–6 14.3% 1,416 0 0
1972 3–8 27.3% 1,441 0 0
1973 2–12 14.3% #224 1,410 0 0
1974 11–19 36.7% #86 1,550 0 0
1975 5–17 22.7% #165 1,485 0 0
1976 1–1 50.0% #239 1,511 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 Robert Kreiss
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 0 1 1 0.0%
1969 2 2 4 50.0% 0 3 3 0.0% 1969 0 1 1 0.0%
1970 0 5 5 0.0% 1 2 3 33.3% 1970 0 1 1 0.0%
1971 0 4 4 0.0% 1 1 2 50.0% 0 1 1 0.0% 1971 1 4 5 20.0% 0 1 1 0.0%
1972 0 2 2 0.0% 0 1 1 0.0% 2 3 5 40.0% 1 2 3 33.3% 1972 1 0 1 100.0% 0 1 1 0.0% 0 3 3 0.0%
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% 0 1 1 0.0% 0 1 1 0.0% 2 3 5 40.0%
1974 1 3 4 25.0% 3 7 10 30.0% 3 4 7 42.9% 4 5 9 44.4% 1974 2 5 7 28.6% 0 5 5 0.0% 1 2 3 33.3% 3 4 7 42.9%
1975 0 3 3 0.0% 2 6 8 25.0% 0 1 1 0.0% 3 7 10 30.0% 1975 0 3 3 0.0% 2 6 8 25.0% 0 2 2 0.0% 5 7 12 41.7%
1976 1 1 2 50.0%
1977 0 1 1 0.0%
Career 5 25 30 16.7% 8 22 30 26.7% 7 19 26 26.9% 8 16 24 33.3% Career 4 14 18 22.2% 2 13 15 13.3% 1 8 9 11.1% 10 17 27 37.0%

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.

William Brown Robert Kreiss
Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Schedule Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Schedule
1968 1444 97.1 +51 -2 31.6% -0.95 0–1 -0.04 1968 1488 101.1 33.3% -0.67 0–1 -0.09
1969 1450 102.3 +134 +4 29.4% -1.29 1–1 -0.30 1969 1474 99.6 33.3% -1.33 0–1 +0.08
1970 1427 103.2 +83 +33 31.8% -1.32 0–3 (0%) +0.14 1970 1470 97.7 0.0% -3.50 -0.26
1971 1416 98.3 +23 21.4% -1.64 1–1 0–1 +0.17 1971 1451 99.2 +54 23.1% -2.00 0–1 1–1 +0.26
1972 1441 106.2 +7 +71 37.0% -0.63 1–2 (33%) 1–3 (25%) +0.31 1972 1440 107.3 +71 33.3% -1.67 0–2 2–0 +0.43
1973 1410 107.1 +31 +20 24.2% -1.79 1–2 (33%) 3–3 (50%) +0.02 1973 1458 113.5 +82 35.0% -0.90 1–3 (25%) 1–4 (20%) -0.11
1974 1551 115.3 -52 -68 -71 37.7% -1.26 1–3 (25%) 6–5 (55%) +0.67 1974 1489 120.5 +68 -34 -21 34.5% -0.88 3–5 (38%) 1–4 (20%) +0.38
1975 1486 114.6 -2 -29 29.1% -1.44 4–4 (50%) 4–4 (50%) +0.82 1975 1481 124.5 +58 -35 36.1% -1.07 2–6 (25%) 3–3 (50%) +0.73
1976 1512 113.8 40.0% -0.20 1–0 1–0 -0.38
1977 1493 94.5 0.0% -3.00 0–1 +0.28
Career 1557 111.8 +12 -31 +2 31.6% -1.30 10–17 (37%) 15–17 (47%) +1.58 Career 1559 120.7 +65 -35 -21 33.7% -1.12 6–19 (24%) 8–12 (40%) +2.06

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.