H2H data updated: 2026-09-02 00:00 UTC

Nicholas Kalogeropoulos vs Paul Gerken H2H: 1-0

Nicholas Kalogeropoulos holds a 1–0 lead over Paul Gerken in their ATP head-to-head. Across 1 main-draw meeting, Nicholas Kalogeropoulos leads 1–0 on hard courts. Most recently, Nicholas Kalogeropoulos won the 1973 Salisbury round of 64 5-7 6-3 6-3.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Nicholas Kalogeropoulos
GRE Age 81 Right-Handed
H2H
1 – 0
1 main draw meetings
Paul Gerken
USA Age 76 Right-Handed 185 cm / 6'1"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Nicholas Kalogeropoulos 5-7 6-3 6-3 Paul Gerken Match data Feb 21, 1973* R64 Salisbury ATP 250 Hard

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 1,687 55 75 42.3% 0 0 0 0 0 0
Paul Gerken #496 #35 0 1,836 122 127 49.0% 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 Nicholas Kalogeropoulos Paul Gerken
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 — — — — — — — 1968 4–3 57.1% — 1,540 0 0
19 — — — — — — — 1969 4–8 33.3% — 1,514 0 0
20 — — — — — — — 1970 3–7 30.0% — 1,513 0 0
21 — — — — — — — 1971 7–9 43.8% — 1,558 0 0
22 — — — — — — — 1972 14–12 53.8% — 1,651 0 0
23 1968 13–13 50.0% — 1,533 0 0 1973 50–33 60.2% #50 1,761 0 0
24 1969 9–10 47.4% — 1,587 0 0 1974 23–31 42.6% #65 1,649 0 0
25 1970 10–6 62.5% — 1,661 0 0 1975 14–19 42.4% #80 1,610 0 0
26 1971 4–7 36.4% — 1,655 0 0 — — — — — — —
27 1972 5–8 38.5% — 1,641 0 0 1977 3–5 37.5% — 1,601 0 0
28 1973 12–18 40.0% #113 1,567 0 0 — — — — — — —
29 1974 1–11 8.3% #245 1,479 0 0 — — — — — — —
34 1979 1–1 50.0% #511 1,488 0 0 — — — — — — —
35 1980 0–1 0.0% — 1,477 0 0 — — — — — — —

Surface Results by Age

Seasons are aligned by the age each player spent most of that calendar year. 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.

Age Nicholas Kalogeropoulos Paul Gerken
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 %
18 — — — — — — — — — — — — — — — — — 1968 2 1 3 66.7% — — — — 2 2 4 50.0% — — — —
19 — — — — — — — — — — — — — — — — — 1969 — — — — 1 3 4 25.0% 3 5 8 37.5% — — — —
20 — — — — — — — — — — — — — — — — — 1970 0 1 1 0.0% 1 3 4 25.0% 2 2 4 50.0% 0 1 1 0.0%
21 — — — — — — — — — — — — — — — — — 1971 3 4 7 42.9% 3 4 7 42.9% 1 1 2 50.0% — — — —
22 — — — — — — — — — — — — — — — — — 1972 2 3 5 40.0% 6 4 10 60.0% 2 2 4 50.0% 4 3 7 57.1%
23 1968 — — — — 12 11 23 52.2% 1 2 3 33.3% — — — — 1973 20 11 31 64.5% 19 14 33 57.6% 5 4 9 55.6% 6 4 10 60.0%
24 1969 0 1 1 0.0% 6 6 12 50.0% 2 2 4 50.0% 1 1 2 50.0% 1974 6 10 16 37.5% 7 10 17 41.2% 3 3 6 50.0% 7 8 15 46.7%
25 1970 2 1 3 66.7% 2 2 4 50.0% 6 3 9 66.7% — — — — 1975 3 3 6 50.0% 1 6 7 14.3% 1 2 3 33.3% 9 8 17 52.9%
26 1971 2 3 5 40.0% 0 2 2 0.0% 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — —
27 1972 — — — — 3 5 8 37.5% 2 3 5 40.0% — — — — 1977 1 1 2 50.0% 2 3 5 40.0% 0 1 1 0.0% — — — —
28 1973 5 7 12 41.7% 3 6 9 33.3% 0 2 2 0.0% 4 3 7 57.1% — — — — — — — — — — — — — — — — —
29 1974 0 2 2 0.0% — — — — — — — — 1 9 10 10.0% — — — — — — — — — — — — — — — — —
34 1979 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
35 1980 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 10 16 26 38.5% 26 32 58 44.8% 13 14 27 48.1% 6 13 19 31.6% — 37 34 71 52.1% 40 47 87 46.0% 19 22 41 46.3% 26 24 50 52.0%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. 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.

Age Nicholas Kalogeropoulos Paul Gerken
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
18 — — — — — — — — — — — — — — — — 1968 1541 101.1 — — — — +35 — -12 42.1% +0.05 1–0 — — -0.33
19 — — — — — — — — — — — — — — — — 1969 1515 107.8 — — — — — -30 -14 43.8% -0.13 1–5 (17%) — — -0.40
20 — — — — — — — — — — — — — — — — 1970 1514 114.4 — — — — — -33 +11 37.5% -0.46 0–2 1–0 — -0.12
21 — — — — — — — — — — — — — — — — 1971 1559 109.6 — — — — -25 -50 — 47.6% +0.10 4–4 (50%) 2–5 (29%) — +0.82
22 — — — — — — — — — — — — — — — — 1972 1652 124.6 — — — — -35 -63 -66 52.8% +0.39 7–6 (54%) 6–7 (46%) — +2.20
23 1968 1534 109.4 — — — — — +10 — 49.3% -0.23 6–3 (67%) — — +0.08 1973 1761 139.8 — — — — +36 -27 -117 56.3% +0.65 19–11 (63%) 16–17 (48%) — +1.13
24 1969 1588 115.4 — — — — -11 -27 -2 45.8% -0.31 2–1 (67%) — — +0.63 1974 1649 124.9 — — — — +35 -15 -16 46.9% -0.35 8–13 (38%) 13–9 (59%) — -0.35
25 1970 1661 120.0 — — — — -41 -97 +6 54.8% +0.31 4–2 (67%) — — +0.07 1975 1611 129.1 — — — — +120 -74 +20 42.7% -0.56 7–7 (50%) 10–6 (63%) — -0.79
26 1971 1656 117.3 — — — — -52 — +30 43.9% -0.24 3–5 (38%) 2–2 (50%) — -1.13 — — — — — — — — — — — — — — — —
27 1972 1641 114.3 — — — — — -44 +3 42.9% -0.36 3–2 (60%) 2–0 — -0.43 1977 1601 119.0 — — — — — -51 — 38.9% -0.39 1–1 1–2 (33%) — +0.38
28 1973 1568 120.8 — — — — +76 -4 — 46.6% +0.05 5–9 (36%) 3–5 (38%) — +2.25 — — — — — — — — — — — — — — — —
29 1974 1479 110.7 — — — — +22 — — 25.8% -1.13 1–6 (14%) 2–3 (40%) — +0.86 — — — — — — — — — — — — — — — —
34 1979 1489 103.6 — — — — — — — 50.0% -0.50 — 1–0 — +0.24 — — — — — — — — — — — — — — — —
35 1980 1478 100.1 — — — — — — — 0.0% -2.00 — — — +0.08 — — — — — — — — — — — — — — — —
Career — 1687 120.8 — — — — +31 -16 +8 45.2% -0.23 24–28 (46%) 10–10 (50%) 100.1 +2.09 — 1837 131.8 — — — — +41 -36 -39 49.2% +0.08 48–49 (49%) 49–46 (52%) 101.6 +1.03

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.