H2H data updated: 2026-09-04 00:00 UTC

Vladimir Zednik vs Nicholas Kalogeropoulos H2H: 0-1

Nicholas Kalogeropoulos holds a 1–0 lead over Vladimir Zednik in their ATP head-to-head. Across 1 main-draw meeting, Nicholas Kalogeropoulos leads 1–0 on clay. Most recently, Nicholas Kalogeropoulos won the 1972 Austrian Open Kitzbühel round of 32 4-6 3-6 7-6 6-1 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.

Vladimir Zednik

CZE Age 79 Right-Handed

H2H

0 – 1

1 main draw meetings

Nicholas Kalogeropoulos

GRE Age 81 Right-Handed

H2H Match Log

Player	Score	Player	Match Data	Date	Round	Tournament	Category	Surface
Nicholas Kalogeropoulos	4-6 3-6 7-6 6-1 6-3	Vladimir Zednik	Match data	Jul 25, 1972*	R32	Austrian Open Kitzbühel	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
Vladimir Zednik	#300	#35	0	1,757	113	158	41.7%	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	Vladimir Zednik							Nicholas Kalogeropoulos
Age	Yr	W-L	Win %	Rank	Elo	GS	Titles	Yr	W-L	Win %	Rank	Elo	GS	Titles
21	1968	1–1	50.0%	—	1,500	0	0	—	—	—	—	—	—	—
22	1969	4–2	66.7%	—	1,561	0	0	—	—	—	—	—	—	—
23	1970	6–7	46.2%	—	1,576	0	0	1968	13–13	50.0%	—	1,533	0	0
24	1971	17–20	45.9%	—	1,629	0	0	1969	9–10	47.4%	—	1,587	0	0
25	1972	19–20	48.7%	—	1,653	0	1	1970	10–6	62.5%	—	1,661	0	0
26	1973	14–24	36.8%	#90	1,636	0	1	1971	4–7	36.4%	—	1,655	0	0
27	1974	12–19	38.7%	#93	1,635	0	1	1972	5–8	38.5%	—	1,641	0	0
28	1975	3–11	21.4%	#157	1,622	0	1	1973	12–18	40.0%	#113	1,567	0	0
29	1976	5–11	31.2%	#106	1,593	0	1	1974	1–11	8.3%	#245	1,479	0	0
30	1977	9–13	40.9%	#66	1,642	0	1	—	—	—	—	—	—	—
31	1978	22–22	50.0%	#70	1,660	0	2	—	—	—	—	—	—	—
32	1979	1–7	12.5%	#300	1,582	0	2	—	—	—	—	—	—	—
33	1980	0–1	0.0%	—	1,572	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	Vladimir Zednik																	Nicholas Kalogeropoulos
	Yr	Hard				Clay				Grass				Carpet				Yr	Hard				Clay				Grass				Carpet
	Yr	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	Yr	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %
21	1968	—	—	—	—	1	1	2	50.0%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
22	1969	3	1	4	75.0%	1	1	2	50.0%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
23	1970	—	—	—	—	2	3	5	40.0%	3	3	6	50.0%	1	1	2	50.0%	1968	—	—	—	—	12	11	23	52.2%	1	2	3	33.3%	—	—	—	—
24	1971	9	10	19	47.4%	5	5	10	50.0%	0	4	4	0.0%	3	1	4	75.0%	1969	0	1	1	0.0%	6	6	12	50.0%	2	2	4	50.0%	1	1	2	50.0%
25	1972	4	6	10	40.0%	5	6	11	45.5%	0	2	2	0.0%	10	6	16	62.5%	1970	2	1	3	66.7%	2	2	4	50.0%	6	3	9	66.7%	—	—	—	—
26	1973	0	3	3	0.0%	8	9	17	47.1%	3	3	6	50.0%	3	9	12	25.0%	1971	2	3	5	40.0%	0	2	2	0.0%	2	2	4	50.0%	—	—	—	—
27	1974	0	2	2	0.0%	4	6	10	40.0%	5	6	11	45.5%	3	5	8	37.5%	1972	—	—	—	—	3	5	8	37.5%	2	3	5	40.0%	—	—	—	—
28	1975	0	2	2	0.0%	3	2	5	60.0%	—	—	—	—	0	7	7	0.0%	1973	5	7	12	41.7%	3	6	9	33.3%	0	2	2	0.0%	4	3	7	57.1%
29	1976	1	2	3	33.3%	3	8	11	27.3%	—	—	—	—	1	1	2	50.0%	1974	0	2	2	0.0%	—	—	—	—	—	—	—	—	1	9	10	10.0%
30	1977	0	1	1	0.0%	7	8	15	46.7%	—	—	—	—	2	4	6	33.3%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
31	1978	1	3	4	25.0%	19	12	31	61.3%	0	1	1	0.0%	2	6	8	25.0%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
32	1979	0	3	3	0.0%	0	2	2	0.0%	—	—	—	—	1	2	3	33.3%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
33	1980	0	1	1	0.0%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
34	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1979	1	1	2	50.0%	—	—	—	—	—	—	—	—	—	—	—	—
35	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1980	0	1	1	0.0%	—	—	—	—	—	—	—	—	—	—	—	—
Career	—	18	34	52	34.6%	58	63	121	47.9%	11	19	30	36.7%	26	42	68	38.2%	—	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	Vladimir Zednik																Nicholas Kalogeropoulos
Age	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
21	1968	1500	101.6	—	—	—	—	—	—	—	60.0%	+0.60	0–1	—	—	+0.06	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
22	1969	1562	110.4	—	—	—	—	+69	—	—	58.8%	+0.47	1–0	—	—	+0.42	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
23	1970	1576	112.1	—	—	—	—	—	-41	-8	44.2%	-0.47	3–1 (75%)	3–0 (100%)	—	+0.55	1968	1534	109.4	—	—	—	—	—	+10	—	49.3%	-0.23	6–3 (67%)	—	—	+0.08
24	1971	1630	112.7	—	—	—	—	+20	-4	-140	46.0%	-0.41	6–7 (46%)	6–4 (60%)	—	+2.74	1969	1588	115.4	—	—	—	—	-11	-27	-2	45.8%	-0.31	2–1 (67%)	—	—	+0.63
25	1972	1654	127.7	—	—	—	—	+75	-41	—	47.8%	-0.14	5–3 (63%)	10–5 (67%)	—	+1.73	1970	1661	120.0	—	—	—	—	-41	-97	+6	54.8%	+0.31	4–2 (67%)	—	—	+0.07
26	1973	1637	128.2	—	—	—	—	+13	+39	-160	42.9%	-0.51	2–5 (29%)	3–8 (27%)	—	-0.89	1971	1656	117.3	—	—	—	—	-52	—	+30	43.9%	-0.24	3–5 (38%)	2–2 (50%)	—	-1.13
27	1974	1636	122.3	—	—	—	—	-16	-23	-87	43.5%	-0.32	3–7 (30%)	8–5 (62%)	—	-0.80	1972	1641	114.3	—	—	—	—	—	-44	+3	42.9%	-0.36	3–2 (60%)	2–0	—	-0.43
28	1975	1623	129.9	—	—	—	—	-78	+27	—	29.0%	-0.93	3–1 (75%)	1–6 (14%)	—	-1.26	1973	1568	120.8	—	—	—	—	+76	-4	—	46.6%	+0.05	5–9 (36%)	3–5 (38%)	—	+2.25
29	1976	1593	122.5	—	—	—	—	-42	-10	—	38.1%	-0.67	3–6 (33%)	4–3 (57%)	—	-0.27	1974	1479	110.7	—	—	—	—	+22	—	—	25.8%	-1.13	1–6 (14%)	2–3 (40%)	—	+0.86
30	1977	1643	134.4	—	—	—	—	-94	-5	—	50.8%	+0.08	1–10 (9%)	4–5 (44%)	—	+0.22	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
31	1978	1661	140.4	—	—	—	—	-123	+79	—	50.0%	+0.10	6–8 (43%)	6–10 (38%)	—	+1.28	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
32	1979	1583	117.3	—	—	—	—	-87	—	—	11.8%	-2.00	1–0	0–3 (0%)	—	+0.12	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
33	1980	1573	101.3	—	—	—	—	—	—	—	33.3%	0.00	0–1	0–2	—	-0.06	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
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	—	1757	133.1	—	—	—	—	-7	+19	-94	44.8%	-0.30	34–50 (40%)	45–51 (47%)	99.4	+1.45	—	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.

Vladimir Zednik's most-played ATP rivals
Opponent	W	L	M	Last Played	H2H
Mark Cox	1	6	7	Mar 27, 1975	H2H
Guillermo Vilas	1	5	6	Jan 19, 1979	H2H
Manuel Orantes	2	4	6	May 20, 1978	H2H
Jaime Fillol	3	2	5	May 18, 1978	H2H
Bob Lutz	0	5	5	Apr 7, 1978	H2H

Nicholas Kalogeropoulos's most-played ATP rivals
Opponent	W	L	M	Last Played	H2H
Ilie Nastase	0	4	4	Mar 25, 1973	H2H
Clark Graebner	1	3	4	Feb 10, 1973	H2H
Ian Fletcher	2	1	3	Feb 7, 1974	H2H
Byron Bertram	2	1	3	Jan 26, 1974	H2H
Ion Tiriac	0	3	3	Jan 28, 1973	H2H