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

Nicholas Kalogeropoulos vs Ion Tiriac H2H: 0-3

Ion Tiriac holds a 3–0 lead over Nicholas Kalogeropoulos in their ATP head-to-head. Across 3 main-draw meetings, Ion Tiriac leads 2–0 on clay and 1–0 on hard courts. Most recently, Ion Tiriac won the 1973 Omaha round of 16 3-6 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
0 – 3
3 main-draw meetings
Ion Tiriac
ROU Age 87 Right-Handed 185 cm / 6'1"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Ion Tiriac 3-6 6-3 6-3 Nicholas Kalogeropoulos Match data Jan 28, 1973* R16 Omaha ATP 250 Hard
Ion Tiriac 6-2 7-5 6-0 Nicholas Kalogeropoulos Match data May 30, 1969* R128 Roland Garros Grand Slam Clay
Ion Tiriac 6-3 6-3 6-2 Nicholas Kalogeropoulos Match data Apr 13, 1968* SF Catania 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
Ion Tiriac #439 #55 0 1,885 226 188 54.6% 0 0 0 0 4 4

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 Ion Tiriac
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
23 1968 13–13 50.0% — 1,533 0 0 — — — — — — —
24 1969 9–10 47.4% — 1,587 0 0 — — — — — — —
25 1970 10–6 62.5% — 1,661 0 0 — — — — — — —
26 1971 4–7 36.4% — 1,655 0 0 — — — — — — —
27 1972 5–8 38.5% — 1,640 0 0 — — — — — — —
28 1973 12–18 40.0% #113 1,567 0 0 — — — — — — —
29 1974 1–11 8.3% #245 1,479 0 0 1968 60–12 83.3% — 1,832 0 2
30 — — — — — — — 1969 14–14 50.0% — 1,762 0 2
31 — — — — — — — 1970 32–21 60.4% — 1,808 0 3
32 — — — — — — — 1971 27–16 62.8% — 1,782 0 4
33 — — — — — — — 1972 23–26 46.9% — 1,675 0 4
34 1979 1–1 50.0% #511 1,488 0 0 1973 34–35 49.3% #74 1,677 0 4
35 1980 0–1 0.0% — 1,477 0 0 1974 9–14 39.1% #72 1,619 0 4
36 — — — — — — — 1975 8–10 44.4% #138 1,594 0 4
37 — — — — — — — 1976 1–7 12.5% #248 1,548 0 4
38 — — — — — — — 1977 15–20 42.9% #97 1,631 0 4
39 — — — — — — — 1978 2–10 16.7% #263 1,522 0 4
40 — — — — — — — 1979 1–3 25.0% #439 1,524 0 4

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 Ion Tiriac
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 %
23 1968 — — — — 12 11 23 52.2% 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
24 1969 0 1 1 0.0% 6 6 12 50.0% 2 2 4 50.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
25 1970 2 1 3 66.7% 2 2 4 50.0% 6 3 9 66.7% — — — — — — — — — — — — — — — — — — — — —
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% — — — — — — — — — — — — — — — — — — — — —
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% 1968 — — — — 56 11 67 83.6% 4 1 5 80.0% — — — —
30 — — — — — — — — — — — — — — — — — 1969 4 5 9 44.4% 7 5 12 58.3% 2 2 4 50.0% 1 2 3 33.3%
31 — — — — — — — — — — — — — — — — — 1970 6 5 11 54.5% 23 9 32 71.9% 2 2 4 50.0% 1 5 6 16.7%
32 — — — — — — — — — — — — — — — — — 1971 4 4 8 50.0% 20 7 27 74.1% 3 2 5 60.0% 0 3 3 0.0%
33 — — — — — — — — — — — — — — — — — 1972 6 9 15 40.0% 10 10 20 50.0% 4 3 7 57.1% 3 4 7 42.9%
34 1979 1 1 2 50.0% — — — — — — — — — — — — 1973 2 9 11 18.2% 21 19 40 52.5% 4 3 7 57.1% 7 4 11 63.6%
35 1980 0 1 1 0.0% — — — — — — — — — — — — 1974 2 3 5 40.0% 0 5 5 0.0% 0 1 1 0.0% 7 5 12 58.3%
36 — — — — — — — — — — — — — — — — — 1975 1 1 2 50.0% 1 2 3 33.3% 0 1 1 0.0% 6 6 12 50.0%
37 — — — — — — — — — — — — — — — — — 1976 1 2 3 33.3% 0 1 1 0.0% 0 1 1 0.0% 0 3 3 0.0%
38 — — — — — — — — — — — — — — — — — 1977 1 2 3 33.3% 13 14 27 48.1% 1 1 2 50.0% 0 3 3 0.0%
39 — — — — — — — — — — — — — — — — — 1978 1 2 3 33.3% 1 5 6 16.7% 0 3 3 0.0% — — — —
40 — — — — — — — — — — — — — — — — — 1979 — — — — — — — — 1 1 2 50.0% 0 2 2 0.0%
Career — 10 16 26 38.5% 26 32 58 44.8% 13 14 27 48.1% 6 13 19 31.6% — 28 42 70 40.0% 152 88 240 63.3% 21 21 42 50.0% 25 37 62 40.3%

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 Nicholas Kalogeropoulos Ion Tiriac
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
23 1968 1534 109.4 — — — — — +9 — 49.3% -0.23 6–3 (67%) — — +0.08 — — — — — — — — — — — — — — — —
24 1969 1588 115.4 — — — — -10 -28 -2 45.8% -0.31 2–1 (67%) — — +0.63 — — — — — — — — — — — — — — — —
25 1970 1661 120.0 — — — — -41 -95 +5 54.8% +0.31 4–2 (67%) — — +0.03 — — — — — — — — — — — — — — — —
26 1971 1655 116.5 — — — — -51 — +31 43.9% -0.24 3–5 (38%) 2–2 (50%) 98.2 -1.12 — — — — — — — — — — — — — — — —
27 1972 1641 114.4 — — — — — -46 +3 42.9% -0.36 3–2 (60%) 2–0 — -0.44 — — — — — — — — — — — — — — — —
28 1973 1568 120.8 — — — — +76 -5 — 46.6% +0.05 5–9 (36%) 3–5 (38%) 94.6 +2.24 — — — — — — — — — — — — — — — —
29 1974 1480 110.7 — — — — +21 — — 25.8% -1.13 1–6 (14%) 2–3 (40%) 93.2 +0.84 1968 1833 137.7 — — — — — +131 -203 75.3% +1.86 9–2 (82%) — — +2.00
30 — — — — — — — — — — — — — — — — 1969 1763 123.3 — — — — -148 +136 -139 51.5% +0.17 1–0 — — -1.84
31 — — — — — — — — — — — — — — — — 1970 1808 137.8 — — — — -160 +97 -150 63.5% +0.93 3–9 (25%) — — -0.64
32 — — — — — — — — — — — — — — — — 1971 1783 135.6 — — — — -170 +111 -58 58.1% +0.67 5–1 (83%) 2–4 (33%) 103.9 +3.38
33 — — — — — — — — — — — — — — — — 1972 1676 128.9 — — — — -62 +102 +64 51.5% +0.05 6–15 (29%) 3–4 (43%) 92.8 +3.05
34 1979 1489 103.6 — — — — — — — 50.0% -0.50 — 1–0 — +0.24 1973 1678 129.0 — — — — -55 0 +87 50.6% +0.14 10–13 (43%) 7–6 (54%) 98.5 +4.22
35 1980 1478 100.1 — — — — — — — 0.0% -2.00 — — — +0.08 1974 1619 121.8 — — — — +72 -35 — 38.5% -0.69 3–2 (60%) 1–3 (25%) 100.2 +0.03
36 — — — — — — — — — — — — — — — — 1975 1595 116.1 — — — — +71 -22 — 43.5% -0.11 4–4 (50%) 1–8 (11%) 94.0 +2.98
37 — — — — — — — — — — — — — — — — 1976 1548 112.0 — — — — +53 — — 20.0% -2.20 0–1 0–1 — +0.52
38 — — — — — — — — — — — — — — — — 1977 1631 138.9 — — — — -92 +39 — 44.9% -0.49 2–6 (25%) 6–4 (60%) 98.6 -0.45
39 — — — — — — — — — — — — — — — — 1978 1523 117.6 — — — — +24 +98 +113 23.3% -1.60 1–2 (33%) 0–1 — +0.15
40 — — — — — — — — — — — — — — — — 1979 1525 117.9 — — — — — — — 40.0% -1.10 0–2 1–0 — -0.12
Career — 1686 120.7 — — — — +31 -16 +8 45.2% -0.23 24–28 (46%) 10–10 (50%) 100.1 +2.03 — 1886 136.9 — — — — -53 +83 -30 55.3% +0.42 44–57 (44%) 21–31 (40%) 92.8 +3.27

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.