H2H data updated: 2026-07-20 14:15 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 second round 4-6 7-6 6-1.
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H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Mar 28, 1973* | Valencia | ATP 250 | R64 | Clay | Nicholas Kalogeropoulos | 4-6 7-6 6-1 | U Unknown | Match data |
| Nov 14, 1969* | Buenos Aires | ATP 250 | R32 | Clay | Nicholas Kalogeropoulos | 6-3 3-6 6-1 6-3 | U Unknown | Match data |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nicholas Kalogeropoulos | #511 | #108 | 0 | 1,681 | 53 | 74 | 41.7% | 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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 11–12 | 47.8% | — | 1,510 | 0 | 0 | — | — | — | — | — | — | — |
| 1969 | 9–10 | 47.4% | — | 1,568 | 0 | 0 | — | — | — | — | — | — | — |
| 1970 | 10–6 | 62.5% | — | 1,652 | 0 | 0 | — | — | — | — | — | — | — |
| 1971 | 4–7 | 36.4% | — | 1,649 | 0 | 0 | — | — | — | — | — | — | — |
| 1972 | 5–8 | 38.5% | — | 1,636 | 0 | 0 | — | — | — | — | — | — | — |
| 1973 | 12–18 | 40.0% | #113 | 1,565 | 0 | 0 | — | — | — | — | — | — | — |
| 1974 | 1–11 | 8.3% | #245 | 1,477 | 0 | 0 | — | — | — | — | — | — | — |
| 1979 | 1–1 | 50.0% | #511 | 1,487 | 0 | 0 | — | — | — | — | — | — | — |
| 1980 | 0–1 | 0.0% | — | 1,476 | 0 | 0 | — | — | — | — | — | — | — |