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

Nicholas Kalogeropoulos vs U Unknown H2H: 2-0

Nicholas Kalogeropoulos holds a 2–0 lead over U Unknown in their ATP head-to-head. Across 2 main-draw meetings, Nicholas Kalogeropoulos leads 2–0 on clay. Most recently, Nicholas Kalogeropoulos won the 1973 Valencia round of 64 4-6 7-6 6-1.

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Nicholas Kalogeropoulos
GRE Age 81 Right-Handed
H2H
2 – 0
2 main-draw meetings
U Unknown

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Nicholas Kalogeropoulos 4-6 7-6 6-1 U Unknown Match data Mar 28, 1973* R64 Valencia ATP 250 Clay
Nicholas Kalogeropoulos 6-3 3-6 6-1 6-3 U Unknown Match data Nov 14, 1969* R32 Argentina 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
Nicholas Kalogeropoulos #511 #108 0 1,686 55 75 42.3% 0 0 0 0 0 0
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.

Nicholas Kalogeropoulos U Unknown
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 13–13 50.0% — 1,533 0 0 — — — — — — —
1969 9–10 47.4% — 1,587 0 0 — — — — — — —
1970 10–6 62.5% — 1,661 0 0 — — — — — — —
1971 4–7 36.4% — 1,655 0 0 — — — — — — —
1972 5–8 38.5% — 1,641 0 0 — — — — — — —
1973 12–18 40.0% #113 1,567 0 0 — — — — — — —
1974 1–11 8.3% #245 1,479 0 0 — — — — — — —
1979 1–1 50.0% #511 1,488 0 0 — — — — — — —
1980 0–1 0.0% — 1,478 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.

Nicholas Kalogeropoulos 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 — — — — 12 11 23 52.2% 1 2 3 33.3% — — — — 1968 — — — — 0 3 3 0.0% — — — — 0 1 1 0.0%
1969 0 1 1 0.0% 6 6 12 50.0% 2 2 4 50.0% 1 1 2 50.0% 1969 — — — — 2 17 19 10.5% 0 2 2 0.0% — — — —
1970 2 1 3 66.7% 2 2 4 50.0% 6 3 9 66.7% — — — — 1970 0 2 2 0.0% 1 9 10 10.0% 0 2 2 0.0% — — — —
1971 2 3 5 40.0% 0 2 2 0.0% 2 2 4 50.0% — — — — 1971 0 2 2 0.0% 0 4 4 0.0% — — — — 0 2 2 0.0%
1972 — — — — 3 5 8 37.5% 2 3 5 40.0% — — — — 1972 0 1 1 0.0% — — — — — — — — 0 1 1 0.0%
1973 5 7 12 41.7% 3 6 9 33.3% 0 2 2 0.0% 4 3 7 57.1% 1973 — — — — 0 1 1 0.0% 0 1 1 0.0% — — — —
1974 0 2 2 0.0% — — — — — — — — 1 9 10 10.0% 1974 — — — — — — — — 0 3 3 0.0% — — — —
1979 1 1 2 50.0% — — — — — — — — — — — — 1975 — — — — 0 1 1 0.0% — — — — — — — —
1980 0 1 1 0.0% — — — — — — — — — — — — 1980 — — — — — — — — 0 8 8 0.0% — — — —
Career 10 16 26 38.5% 26 32 58 44.8% 13 14 27 48.1% 6 13 19 31.6% 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.

Nicholas Kalogeropoulos 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 1534 109.4 — — — — — +9 — 49.3% -0.23 6–3 (67%) — — +0.08 1968 1441 99.5 — — — — — +9 — 33.3% -0.67 0–1 — — +0.11
1969 1588 115.4 — — — — -10 -28 -2 45.8% -0.31 2–1 (67%) — — +0.63 1969 1338 101.0 — — — — — -53 — 33.3% -1.44 1–1 — — -0.53
1970 1661 120.0 — — — — -41 -97 +6 54.8% +0.31 4–2 (67%) — — +0.06 1970 1316 101.2 — — — — — -38 — 20.0% -2.25 — — — -0.20
1971 1656 117.3 — — — — -51 — +30 43.9% -0.24 3–5 (38%) 2–2 (50%) 98.2 -1.13 1971 1285 107.5 — — — — +165 -26 — 14.3% -2.86 0–1 0–1 — +0.11
1972 1641 114.3 — — — — — -45 +3 42.9% -0.36 3–2 (60%) 2–0 — -0.43 1972 1277 102.8 — — — — — — — 20.0% -1.40 0–1 0–1 — +0.12
1973 1568 120.8 — — — — +76 -4 — 46.6% +0.05 5–9 (36%) 3–5 (38%) 94.6 +2.24 1973 1273 99.8 — — — — — — — 33.3% -1.33 0–1 0–1 — -0.03
1974 1480 110.7 — — — — +21 — — 25.8% -1.13 1–6 (14%) 2–3 (40%) 93.2 +0.84 1974 1270 101.0 — — — — — — — 0.0% -2.50 — — — +0.02
1979 1489 103.6 — — — — — — — 50.0% -0.50 — 1–0 — +0.24 1975 1270 108.0 — — — — — — — 0.0% -3.50 — — — -0.08
1980 1478 100.1 — — — — — — — 0.0% -2.00 — — — +0.08 1980 1224 — — — — — — — +174 — — — — — +0.59
Career 1687 120.8 — — — — +31 -16 +8 45.2% -0.23 24–28 (46%) 10–10 (50%) 100.1 +2.06 Career 1500 106.0 — — — — +165 -41 +174 24.6% -1.87 1–5 (17%) 0–3 (0%) 94.0 +0.20

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.