H2H data updated: 2026-09-01 00:00 UTC

Geoff Masters vs Nicholas Kalogeropoulos H2H: 0-1

Nicholas Kalogeropoulos holds a 1–0 lead over Geoff Masters in their ATP head-to-head. Across 1 main-draw meeting, Nicholas Kalogeropoulos leads 1–0 on clay. Most recently, Nicholas Kalogeropoulos won the 1970 Monte-Carlo Masters round of 32 6-1 6-4.

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

Geoff Masters
AUS Age 75 Right-Handed
H2H
0 – 1
1 main draw meetings
Nicholas Kalogeropoulos
GRE Age 81 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Nicholas Kalogeropoulos 6-1 6-4 Geoff Masters Match data Apr 16, 1970* R32 Monte-Carlo Masters 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
Geoff Masters #826 #42 0 1,889 237 253 48.4% 0 0 0 0 2 2
Nicholas Kalogeropoulos #511 #108 0 1,687 55 75 42.3% 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 Geoff Masters Nicholas Kalogeropoulos
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1968 2–2 50.0% — 1,511 0 0 — — — — — — —
18 1969 7–6 53.8% — 1,542 0 0 — — — — — — —
19 1970 10–7 58.8% — 1,581 0 0 — — — — — — —
20 1971 19–22 46.3% — 1,573 0 0 — — — — — — —
21 1972 18–18 50.0% — 1,670 0 0 — — — — — — —
22 1973 28–23 54.9% #52 1,756 0 0 — — — — — — —
23 1974 23–21 52.3% #53 1,766 0 1 1968 13–13 50.0% — 1,533 0 0
24 1975 27–24 52.9% #44 1,812 0 1 1969 9–10 47.4% — 1,587 0 0
25 1976 27–31 46.6% #53 1,780 0 2 1970 10–6 62.5% — 1,661 0 0
26 1977 22–27 44.9% #83 1,662 0 2 1971 4–7 36.4% — 1,655 0 0
27 1978 20–20 50.0% #59 1,701 0 2 1972 5–8 38.5% — 1,641 0 0
28 1979 21–23 47.7% #62 1,728 0 2 1973 12–18 40.0% #113 1,567 0 0
29 1980 13–28 31.7% #166 1,517 0 2 1974 1–11 8.3% #245 1,479 0 0
30 1981 0–1 0.0% — 1,501 0 2 — — — — — — —
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 Geoff Masters Nicholas Kalogeropoulos
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 %
17 1968 — — — — — — — — 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — —
18 1969 — — — — 3 3 6 50.0% 4 3 7 57.1% — — — — — — — — — — — — — — — — — — — — —
19 1970 — — — — 4 3 7 57.1% 6 4 10 60.0% — — — — — — — — — — — — — — — — — — — — —
20 1971 3 9 12 25.0% 5 6 11 45.5% 11 7 18 61.1% — — — — — — — — — — — — — — — — — — — — —
21 1972 11 5 16 68.8% 5 5 10 50.0% 2 7 9 22.2% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
22 1973 8 4 12 66.7% 15 13 28 53.6% 5 6 11 45.5% — — — — — — — — — — — — — — — — — — — — —
23 1974 2 8 10 20.0% 11 5 16 68.8% 9 4 13 69.2% 1 4 5 20.0% 1968 — — — — 12 11 23 52.2% 1 2 3 33.3% — — — —
24 1975 9 9 18 50.0% 5 6 11 45.5% 6 3 9 66.7% 7 6 13 53.8% 1969 0 1 1 0.0% 6 6 12 50.0% 2 2 4 50.0% 1 1 2 50.0%
25 1976 11 6 17 64.7% 6 9 15 40.0% 3 5 8 37.5% 7 11 18 38.9% 1970 2 1 3 66.7% 2 2 4 50.0% 6 3 9 66.7% — — — —
26 1977 15 11 26 57.7% 0 2 2 0.0% 5 9 14 35.7% 2 5 7 28.6% 1971 2 3 5 40.0% 0 2 2 0.0% 2 2 4 50.0% — — — —
27 1978 7 5 12 58.3% 3 2 5 60.0% 4 4 8 50.0% 6 9 15 40.0% 1972 — — — — 3 5 8 37.5% 2 3 5 40.0% — — — —
28 1979 2 4 6 33.3% 4 3 7 57.1% 9 6 15 60.0% 6 10 16 37.5% 1973 5 7 12 41.7% 3 6 9 33.3% 0 2 2 0.0% 4 3 7 57.1%
29 1980 2 6 8 25.0% 2 7 9 22.2% 1 6 7 14.3% 8 9 17 47.1% 1974 0 2 2 0.0% — — — — — — — — 1 9 10 10.0%
30 1981 — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
34 — — — — — — — — — — — — — — — — — 1979 1 1 2 50.0% — — — — — — — — — — — —
35 — — — — — — — — — — — — — — — — — 1980 0 1 1 0.0% — — — — — — — — — — — —
Career — 70 67 137 51.1% 63 64 127 49.6% 67 67 134 50.0% 37 55 92 40.2% — 10 16 26 38.5% 26 32 58 44.8% 13 14 27 48.1% 6 13 19 31.6%

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 Geoff Masters Nicholas Kalogeropoulos
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
17 1968 1511 104.2 — — — — — — +30 54.5% +0.45 — — — +0.07 — — — — — — — — — — — — — — — —
18 1969 1542 108.7 — — — — — +20 -1 53.1% +0.47 2–1 (67%) — — +1.09 — — — — — — — — — — — — — — — —
19 1970 1581 113.8 — — — — — +4 +1 48.9% +0.09 2–0 0–1 — +2.04 — — — — — — — — — — — — — — — —
20 1971 1573 113.6 — — — — -110 +36 +80 44.4% -0.32 9–3 (75%) 1–3 (25%) — +2.45 — — — — — — — — — — — — — — — —
21 1972 1670 122.7 — — — — -2 -18 -123 48.0% +0.02 6–6 (50%) 3–4 (43%) — +1.43 — — — — — — — — — — — — — — — —
22 1973 1756 140.1 — — — — 0 -38 -146 52.2% +0.18 11–7 (61%) 8–9 (47%) — -1.32 — — — — — — — — — — — — — — — —
23 1974 1766 141.0 — — — — -125 +49 -11 52.2% +0.31 8–7 (53%) 3–6 (33%) — -2.52 1968 1534 109.4 — — — — — +10 — 49.3% -0.23 6–3 (67%) — — +0.08
24 1975 1812 148.9 — — — — -23 -36 +8 53.0% +0.27 10–12 (45%) 6–8 (43%) — -3.09 1969 1588 115.4 — — — — -11 -27 -2 45.8% -0.31 2–1 (67%) — — +0.63
25 1976 1781 148.0 — — — — +86 -91 -12 48.5% +0.04 4–8 (33%) 9–4 (69%) — -2.30 1970 1661 120.0 — — — — -41 -97 +6 54.8% +0.31 4–2 (67%) — — +0.07
26 1977 1662 120.4 — — — — +90 — -42 44.1% -0.40 8–10 (44%) 6–9 (40%) — +2.97 1971 1656 117.3 — — — — -52 — +30 43.9% -0.24 3–5 (38%) 2–2 (50%) — -1.13
27 1978 1701 140.0 — — — — +47 -24 -35 51.0% +0.09 5–8 (38%) 5–5 (50%) — +1.79 1972 1641 114.3 — — — — — -44 +3 42.9% -0.36 3–2 (60%) 2–0 — -0.43
28 1979 1729 143.8 — — — — -31 -3 -1 48.1% -0.11 8–8 (50%) 8–7 (53%) — -2.12 1973 1568 120.8 — — — — +76 -4 — 46.6% +0.05 5–9 (36%) 3–5 (38%) — +2.25
29 1980 1518 124.9 — — — — +79 +146 +101 36.6% -0.87 4–8 (33%) 8–8 (50%) — -0.05 1974 1479 110.7 — — — — +22 — — 25.8% -1.13 1–6 (14%) 2–3 (40%) — +0.86
30 1981 1501 94.8 — — — — — — — 0.0% -4.00 — — — +0.19 — — — — — — — — — — — — — — — —
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 — 1890 139.6 — — — — +20 -4 -11 48.2% -0.04 77–78 (50%) 57–64 (47%) 99.9 +0.13 — 1687 120.8 — — — — +31 -16 +8 45.2% -0.23 24–28 (46%) 10–10 (50%) 100.1 +2.09

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.