H2H data updated: 2026-09-06 00:00 UTC

Bill Cowan vs Rocky Royer H2H: 0-1

Rocky Royer holds a 1–0 lead over Bill Cowan in their ATP head-to-head. Across 1 main-draw meeting, Rocky Royer leads 1–0 on clay. Most recently, Rocky Royer won the 1982 Japan Open round of 64 7-6 7-6.

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Bill Cowan
CAN Age 67 Right-Handed
H2H
0 – 1
1 main-draw meetings
Rocky Royer
USA Age 68 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Rocky Royer 7-6 7-6 Bill Cowan Match data Oct 20, 1982* R64 Japan Open ATP 250 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
Bill Cowan #1,085 #207 1 1,513 1 8 11.1% 0 0 0 0 0 0
Rocky Royer #855 #154 0 1,500 3 13 18.8% 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 Bill Cowan Rocky Royer
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
21 1980 1–1 50.0% #403 1,500 0 0 — — — — — — —
22 1981 0–2 0.0% — 1,466 0 0 1980 0–1 0.0% #356 1,488 0 0
23 1982 0–2 0.0% — 1,439 0 0 — — — — — — —
24 — — — — — — — 1982 3–6 33.3% — 1,471 0 0
25 — — — — — — — 1983 0–5 0.0% #154 1,422 0 0
26 — — — — — — — 1984 0–1 0.0% #676 1,415 0 0
27 1986 0–2 0.0% #207 1,422 0 0 — — — — — — —
28 1987 0–1 0.0% #918 1,413 0 0 — — — — — — —

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 Bill Cowan Rocky Royer
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
21 1980 1501 98.3 — — — — — — — 50.0% 0.00 — — — +0.54 — — — — — — — — — — — — — — — —
22 1981 1467 96.6 — — — — — — — 0.0% -2.20 — 0–1 — +0.36 1980 1488 97.5 — — — — — — — 33.3% -1.67 0–1 — — +0.03
23 1982 1439 96.1 — — — — — — — 0.0% -2.25 — 0–2 — +0.41 — — — — — — — — — — — — — — — —
24 — — — — — — — — — — — — — — — — 1982 1472 95.5 — — — — +67 +39 — 33.3% -1.62 2–1 (67%) 4–2 (67%) 102.3 +1.58
25 — — — — — — — — — — — — — — — — 1983 1422 89.8 — — — — — +42 — 9.1% -3.27 0–1 1–0 — +0.34
26 — — — — — — — — — — — — — — — — 1984 1415 96.1 — — — — — — — 0.0% -4.00 — — — -0.02
27 1986 1423 103.2 — — — — — — — 20.0% -1.40 0–1 0–2 — +0.08 — — — — — — — — — — — — — — — —
28 1987 1413 98.9 — — — — — — — 0.0% -2.00 — — — +0.13 — — — — — — — — — — — — — — — —
Career — 1513 97.2 — — — — — — — 15.0% -1.55 0–1 0–5 (0%) — +16.89 — 1500 91.4 — — — — +67 +41 — 24.3% -2.24 2–3 (40%) 5–2 (71%) 100.5 +12.06

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.