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

Clark Graebner vs John Austin H2H: 1-0

Clark Graebner holds a 1–0 lead over John Austin in their ATP head-to-head. Across 1 main-draw meeting, Clark Graebner leads 1–0 on carpet. Most recently, Clark Graebner won the 1974 Baltimore quarterfinal 6-3 5-7 6-2.

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

Clark Graebner

USA Age 82 Right-Handed 188 cm / 6'2"

H2H

1 – 0

1 main-draw meetings

John Austin

USA Age 69 Right-Handed

H2H Match Log

Player	Score	Player	Match Data	Date	Round	Tournament	Category	Surface
Clark Graebner	6-3 5-7 6-2	John Austin	Match data	Feb 3, 1974*	QF	Baltimore	ATP 250	Carpet

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
Clark Graebner	#199	#45	0	2,013	339	160	67.9%	0	0	0	0	12	12
John Austin	—	—	—	1,771	—	—	—	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	Clark Graebner							John Austin
Age	Yr	W-L	Win %	Rank	Elo	GS	Titles	Yr	W-L	Win %	Rank	Elo	GS	Titles
24	1968	74–22	77.1%	—	1,818	0	2	—	—	—	—	—	—	—
25	1969	49–14	77.8%	—	1,840	0	6	—	—	—	—	—	—	—
26	1970	55–27	67.1%	—	1,838	0	8	—	—	—	—	—	—	—
27	1971	75–29	72.1%	—	1,867	0	11	—	—	—	—	—	—	—
28	1972	33–22	60.0%	—	1,811	0	11	—	—	—	—	—	—	—
29	1973	34–19	64.2%	#48	1,769	0	12	—	—	—	—	—	—	—
30	1974	11–13	45.8%	#99	1,693	0	12	—	—	—	—	—	—	—
31	1975	8–11	42.1%	#120	1,583	0	12	—	—	—	—	—	—	—
32	1976	0–3	0.0%	#199	1,540	0	12	—	—	—	—	—	—	—

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	Clark Graebner																	John Austin
	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 %
13	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1971	—	—	—	—	0	1	1	0.0%	—	—	—	—	—	—	—	—
15	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1973	—	—	—	—	1	1	2	50.0%	—	—	—	—	—	—	—	—
16	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1974	2	0	2	100.0%	—	—	—	—	—	—	—	—	1	1	2	50.0%
18	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1976	—	—	—	—	0	2	2	0.0%	—	—	—	—	—	—	—	—
19	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1977	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%
20	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1978	4	5	9	44.4%	2	2	4	50.0%	0	2	2	0.0%	2	4	6	33.3%
21	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1979	2	6	8	25.0%	—	—	—	—	1	3	4	25.0%	2	4	6	33.3%
22	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1980	6	5	11	54.5%	0	1	1	0.0%	3	4	7	42.9%	4	3	7	57.1%
23	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1981	12	9	21	57.1%	—	—	—	—	1	3	4	25.0%	3	4	7	42.9%
24	1968	30	11	41	73.2%	9	3	12	75.0%	28	6	34	82.4%	7	2	9	77.8%	1982	0	2	2	0.0%	—	—	—	—	0	1	1	0.0%	0	4	4	0.0%
25	1969	13	2	15	86.7%	10	4	14	71.4%	22	6	28	78.6%	4	2	6	66.7%	1983	0	1	1	0.0%	—	—	—	—	0	2	2	0.0%	0	1	1	0.0%
26	1970	15	11	26	57.7%	19	5	24	79.2%	12	3	15	80.0%	9	8	17	52.9%	1984	0	1	1	0.0%	—	—	—	—	—	—	—	—	—	—	—	—
27	1971	36	9	45	80.0%	19	7	26	73.1%	14	5	19	73.7%	6	8	14	42.9%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
28	1972	17	10	27	63.0%	2	2	4	50.0%	9	4	13	69.2%	5	6	11	45.5%	1986	0	1	1	0.0%	—	—	—	—	—	—	—	—	—	—	—	—
29	1973	18	8	26	69.2%	5	4	9	55.6%	3	3	6	50.0%	8	4	12	66.7%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
30	1974	2	4	6	33.3%	4	4	8	50.0%	2	2	4	50.0%	3	3	6	50.0%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
31	1975	0	1	1	0.0%	3	4	7	42.9%	—	—	—	—	5	6	11	45.5%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
32	1976	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	2	2	0.0%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Career	—	131	57	188	69.7%	71	33	104	68.3%	90	29	119	75.6%	47	41	88	53.4%	—	26	31	57	45.6%	3	7	10	30.0%	5	15	20	25.0%	12	22	34	35.3%

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	Clark Graebner																John Austin
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
13	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1971	1498	106.4	—	—	—	—	—	—	—	0.0%	-3.50	—	—	—	-0.26
15	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1973	1501	100.4	—	—	—	—	—	—	—	60.0%	+1.20	0–1	0–1	—	+0.43
16	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1974	1552	108.7	—	—	—	—	+72	—	—	63.6%	+0.54	2–1 (67%)	2–1 (67%)	103.2	+0.64
18	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1976	1515	94.2	—	—	—	—	—	—	—	0.0%	-3.25	—	—	—	+0.47
19	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1977	1509	112.4	—	—	—	—	—	—	—	33.3%	-1.00	0–2	0–1	—	-0.30
20	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1978	1579	133.7	—	—	—	—	+76	-63	—	37.3%	-0.67	6–3 (67%)	4–5 (44%)	105.8	+0.39
21	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1979	1566	124.9	—	—	—	—	+47	—	-26	34.0%	-1.17	1–4 (20%)	3–4 (43%)	95.9	+0.37
22	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1980	1721	131.1	—	—	—	—	-31	—	-109	50.0%	-0.09	3–3 (50%)	5–3 (63%)	103.2	-0.09
23	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1981	1749	143.1	—	—	—	—	+35	—	-177	48.1%	-0.21	5–3 (63%)	6–3 (67%)	103.7	-2.01
24	1968	1819	133.7	—	—	—	—	+90	-116	+78	73.3%	+1.64	10–8 (56%)	—	—	+0.48	1982	1659	109.4	—	—	—	—	+32	—	—	0.0%	-3.27	—	0–3 (0%)	—	-1.11
25	1969	1841	131.4	—	—	—	—	+152	-98	+107	71.5%	+1.35	8–5 (62%)	1–0	—	+5.30	1983	1579	98.0	—	—	—	—	—	—	—	16.7%	-2.00	0–1	0–3 (0%)	—	+0.39
26	1970	1838	134.4	—	—	—	—	-19	+57	+151	62.2%	+0.83	16–8 (67%)	4–2 (67%)	105.2	+2.72	1984	1559	98.5	—	—	—	—	—	—	—	0.0%	-2.00	—	0–1	—	+0.26
27	1971	1868	141.1	—	—	—	—	+44	+24	+135	65.4%	+1.01	21–7 (75%)	17–15 (53%)	106.8	+5.39	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
28	1972	1811	136.3	—	—	—	—	+26	+67	+132	58.0%	+0.62	5–8 (38%)	6–4 (60%)	93.8	+3.02	1986	1540	97.2	—	—	—	—	—	—	—	0.0%	-3.00	—	—	—	+0.19
29	1973	1770	134.0	—	—	—	—	+58	+77	+109	62.2%	+0.84	6–5 (55%)	9–9 (50%)	98.1	+3.71	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
30	1974	1693	113.9	—	—	—	—	+41	+97	+143	46.2%	-0.38	6–5 (55%)	3–4 (43%)	97.5	+1.74	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
31	1975	1583	111.5	—	—	—	—	+72	+119	—	52.4%	-0.05	0–5 (0%)	6–3 (67%)	94.0	+3.44	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
32	1976	1540	91.6	—	—	—	—	+45	—	—	0.0%	-3.83	—	—	—	+0.51	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Career	—	2014	136.4	—	—	—	—	+51	+17	+113	64.3%	+0.96	72–51 (59%)	46–37 (55%)	100.2	+5.37	—	1771	135.7	—	—	—	—	+32	-63	-105	39.6%	-0.70	17–18 (49%)	20–25 (44%)	100.0	-0.52

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.

Clark Graebner's most-played ATP rivals
Opponent	W	L	M	Last Played	H2H
Ilie Nastase	8	5	13	Mar 17, 1973	H2H
Zeljko Franulovic	4	8	12	Dec 4, 1971	H2H
Arthur Ashe	0	9	9	Jul 21, 1973	H2H
Stan Smith	3	6	9	Sep 3, 1972	H2H
Jimmy Connors	2	6	8	Mar 15, 1973	H2H

John Austin's most-played ATP rivals
Opponent	W	L	M	Last Played	H2H
Brian Teacher	0	5	5	Aug 12, 1981	—
Roscoe Tanner	0	4	4	Apr 15, 1982	—
John Sadri	0	4	4	Mar 6, 1981	—
Nick Saviano	2	1	3	Oct 15, 1981	—
Tim Wilkison	3	0	3	Aug 6, 1981	—