H2H data updated: 2026-10-18 00:00 UTC

Cliff Richey vs U Unknown H2H: 2-0

Cliff Richey holds a 2–0 lead over U Unknown in their ATP head-to-head. Across 2 main-draw meetings, Cliff Richey leads 1–0 on carpet and 1–0 on clay. Most recently, Cliff Richey won the 1969 Argentina Open round of 32 6-0 6-2 6-0.

USA Age 79 Right-Handed 175 cm / 5'9"
H2H
2 – 0
2 main-draw meetings

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Cliff Richey 6-0 6-2 6-0 U Unknown Match data Nov 14, 1969* R32 Argentina Open ATP 250 Clay
Cliff Richey 7-9 7-5 6-4 U Unknown Match data Feb 12, 1968* R16 Philadelphia Wct ATP 250 Carpet

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
Cliff Richey #662 #16 0 2,081 479 222 68.3% 0 0 0 0 20 20
U Unknown — — — 1,500 — — — 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.

Cliff Richey U Unknown
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 46–15 75.4% — 1,738 0 1 — — — — — — —
1969 64–18 78.0% — 1,948 0 7 — — — — — — —
1970 82–24 77.4% — 2,028 0 11 — — — — — — —
1971 67–23 74.4% — 1,909 0 14 — — — — — — —
1972 54–24 69.2% — 1,957 0 17 — — — — — — —
1973 47–26 64.4% #19 1,848 0 17 — — — — — — —
1974 24–15 61.5% #23 1,907 0 18 — — — — — — —
1975 35–23 60.3% #32 1,857 0 18 — — — — — — —
1976 33–24 57.9% #28 1,860 0 19 — — — — — — —
1977 14–17 45.2% #87 1,720 0 19 — — — — — — —
1978 13–12 52.0% #57 1,709 0 20 — — — — — — —
1979 0–1 0.0% #662 1,697 0 20 — — — — — — —

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.

Cliff Richey U Unknown
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 9 2 11 81.8% 22 7 29 75.9% 11 5 16 68.8% 4 1 5 80.0% 1968 — — — — 0 3 3 0.0% — — — — 0 1 1 0.0%
1969 23 5 28 82.1% 27 7 34 79.4% 10 3 13 76.9% 4 3 7 57.1% 1969 — — — — 2 17 19 10.5% 0 2 2 0.0% — — — —
1970 26 7 33 78.8% 31 5 36 86.1% 10 4 14 71.4% 15 8 23 65.2% 1970 0 2 2 0.0% 1 9 10 10.0% 0 2 2 0.0% — — — —
1971 26 7 33 78.8% 20 7 27 74.1% 8 3 11 72.7% 13 6 19 68.4% 1971 0 2 2 0.0% 0 4 4 0.0% — — — — 0 2 2 0.0%
1972 22 8 30 73.3% 8 3 11 72.7% 5 1 6 83.3% 19 12 31 61.3% 1972 0 1 1 0.0% — — — — — — — — 0 1 1 0.0%
1973 9 5 14 64.3% 15 10 25 60.0% 3 2 5 60.0% 20 9 29 69.0% 1973 — — — — 0 1 1 0.0% 0 1 1 0.0% — — — —
1974 16 8 24 66.7% 3 3 6 50.0% 2 2 4 50.0% 3 2 5 60.0% 1974 — — — — — — — — 0 3 3 0.0% — — — —
1975 8 7 15 53.3% 10 8 18 55.6% 5 2 7 71.4% 12 6 18 66.7% 1975 — — — — 0 1 1 0.0% — — — — — — — —
1976 12 7 19 63.2% 16 6 22 72.7% 0 1 1 0.0% 5 10 15 33.3% 1980 — — — — — — — — 0 8 8 0.0% — — — —
1977 3 4 7 42.9% 3 6 9 33.3% 0 1 1 0.0% 8 6 14 57.1% — — — — — — — — — — — — — — — — —
1978 9 5 14 64.3% 0 2 2 0.0% — — — — 4 5 9 44.4% — — — — — — — — — — — — — — — — —
1979 — — — — — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
Career 163 65 228 71.5% 155 64 219 70.8% 54 24 78 69.2% 107 69 176 60.8% Career 0 5 5 0.0% 3 35 38 7.9% 0 16 16 0.0% 0 4 4 0.0%

Advanced Statistics Comparison by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Cliff Richey U Unknown
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 1739 120.9 — — — — +74 -1 -80 68.3% +1.05 12–4 (75%) — — +2.21 1968 1441 99.5 — — — — — +9 — 33.3% -0.67 0–1 — — +0.11
1969 1948 136.7 — — — — +130 +23 -163 69.5% +1.45 14–3 (82%) — — +2.23 1969 1338 101.0 — — — — — -53 — 33.3% -1.44 1–1 — — -0.53
1970 2029 149.4 — — — — +93 +27 -149 72.6% +1.52 14–7 (67%) 6–3 (67%) 104.3 -0.49 1970 1316 101.3 — — — — — -35 — 20.0% -2.25 — — — -0.25
1971 1909 147.4 — — — — +122 +39 +24 70.5% +1.44 11–13 (46%) 13–6 (68%) 96.6 +5.08 1971 1285 107.5 — — — — +165 -28 — 14.3% -2.86 0–1 0–1 — +0.10
1972 1957 154.3 — — — — +26 +16 +43 64.0% +1.09 16–12 (57%) 15–12 (56%) 100.8 -3.18 1972 1277 102.8 — — — — — — — 20.0% -1.40 0–1 0–1 — +0.12
1973 1849 145.9 — — — — +101 -9 +122 61.0% +0.95 13–11 (54%) 14–11 (56%) 97.8 -1.66 1973 1273 99.8 — — — — — — — 33.3% -1.33 0–1 0–1 — -0.03
1974 1908 152.6 — — — — +81 -78 +58 59.8% +0.95 8–7 (53%) 9–8 (53%) 101.2 -3.70 1974 1270 101.0 — — — — — — — 0.0% -2.50 — — — +0.02
1975 1858 145.2 — — — — +59 -41 +101 56.6% +0.54 14–10 (58%) 8–7 (53%) 99.2 -3.96 1975 1270 108.0 — — — — — — — 0.0% -3.50 — — — -0.08
1976 1861 149.1 — — — — -31 +42 — 57.8% +0.65 8–8 (50%) 8–10 (44%) 96.4 -1.56 1980 1224 — — — — — — — +174 — — — — — +0.59
1977 1720 132.8 — — — — +62 +53 — 47.8% -0.14 4–5 (44%) 7–6 (54%) 100.6 +1.06 — — — — — — — — — — — — — — — —
1978 1710 129.7 — — — — +66 — — 50.0% -0.05 5–4 (56%) 4–3 (57%) 100.7 +0.66 — — — — — — — — — — — — — — — —
1979 1697 102.8 — — — — — — — 0.0% -3.00 — — — -0.06 — — — — — — — — — — — — — — — —
Career 2081 148.7 — — — — +73 +13 -45 64.5% +1.06 119–84 (59%) 84–66 (56%) 104.0 -0.49 Career 1500 106.0 — — — — +165 -40 +174 24.6% -1.87 1–5 (17%) 0–3 (0%) 94.0 +0.09

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.