H2H data updated: 2026-09-14 00:00 UTC

Rika Hiraki vs Naoko Sawamatsu H2H: 0-1

Naoko Sawamatsu holds a 1–0 lead over Rika Hiraki in their WTA head-to-head. Across 1 main-draw meeting, Naoko Sawamatsu leads 1–0 on hard courts. Most recently, Naoko Sawamatsu won the 1990 Tokyo Japan Open round of 32 6-3 6-1.

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

Rika Hiraki

JPN Age 54 Right-Handed 157 cm / 5'2"

H2H

0 – 1

1 main-draw meetings

Naoko Sawamatsu

JPN Age 53 Right-Handed 167 cm / 5'6"

H2H Match Log

Player	Score	Player	Match Data	Date	Round	Tournament	Category	Surface
Naoko Sawamatsu #180	6-3 6-1	Rika Hiraki #192	Match data	Apr 13, 1990*	R32	Tokyo Japan Open	Tier IV → modern equivalent WTA 250	Hard

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
Rika Hiraki	#965	#72	325	1,589	48	93	34.0%	0	0	0	0	0	0
Naoko Sawamatsu	#266	#14	881	1,970	183	129	58.7%	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	Rika Hiraki							Naoko Sawamatsu
Age	Yr	W-L	Win %	Rank	Elo	GS	Titles	Yr	W-L	Win %	Rank	Elo	GS	Titles
16	1988	0–2	0.0%	#305	1,477	0	0	1989	0–2	0.0%	#262	1,477	0	0
17	—	—	—	—	—	—	—	1990	14–6	70.0%	#31	1,669	0	1
18	1990	0–2	0.0%	#248	1,451	0	0	1991	21–16	56.8%	#33	1,723	0	1
19	1991	8–8	50.0%	#105	1,544	0	0	1992	23–13	63.9%	#24	1,856	0	1
20	1992	8–15	34.8%	#122	1,570	0	0	1993	24–13	64.9%	#28	1,853	0	2
21	1993	8–18	30.8%	#134	1,550	0	0	1994	24–12	66.7%	#26	1,870	0	3
22	1994	2–8	20.0%	#187	1,503	0	0	1995	22–13	62.9%	#17	1,847	0	3
23	1995	4–7	36.4%	#152	1,524	0	0	1996	19–17	52.8%	#38	1,811	0	3
24	1996	6–12	33.3%	#103	1,510	0	0	1997	24–19	55.8%	#34	1,849	0	4
25	1997	9–16	36.0%	#93	1,485	0	0	1998	12–18	40.0%	#55	1,721	0	4
26	1998	3–4	42.9%	#168	1,501	0	0	—	—	—	—	—	—	—
29	2001	0–1	0.0%	#339	1,497	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	Rika Hiraki																	Naoko Sawamatsu
	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 %
16	1988	—	—	—	—	—	—	—	—	—	—	—	—	0	2	2	0.0%	1989	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%
17	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1990	13	3	16	81.3%	1	1	2	50.0%	0	2	2	0.0%	—	—	—	—
18	1990	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%	1991	13	10	23	56.5%	7	3	10	70.0%	1	2	3	33.3%	0	1	1	0.0%
19	1991	8	6	14	57.1%	0	1	1	0.0%	0	1	1	0.0%	—	—	—	—	1992	13	7	20	65.0%	5	4	9	55.6%	3	1	4	75.0%	2	1	3	66.7%
20	1992	4	10	14	28.6%	0	1	1	0.0%	2	1	3	66.7%	2	3	5	40.0%	1993	12	8	20	60.0%	7	2	9	77.8%	4	2	6	66.7%	1	1	2	50.0%
21	1993	4	10	14	28.6%	0	1	1	0.0%	0	2	2	0.0%	4	5	9	44.4%	1994	15	7	22	68.2%	5	3	8	62.5%	4	2	6	66.7%	—	—	—	—
22	1994	2	6	8	25.0%	—	—	—	—	—	—	—	—	0	2	2	0.0%	1995	14	8	22	63.6%	4	3	7	57.1%	2	1	3	66.7%	2	1	3	66.7%
23	1995	1	4	5	20.0%	—	—	—	—	1	1	2	50.0%	2	2	4	50.0%	1996	11	11	22	50.0%	4	3	7	57.1%	2	2	4	50.0%	2	1	3	66.7%
24	1996	5	8	13	38.5%	0	1	1	0.0%	1	2	3	33.3%	0	1	1	0.0%	1997	20	12	32	62.5%	0	3	3	0.0%	2	2	4	50.0%	2	2	4	50.0%
25	1997	9	10	19	47.4%	0	2	2	0.0%	0	2	2	0.0%	0	2	2	0.0%	1998	6	10	16	37.5%	3	5	8	37.5%	2	2	4	50.0%	1	1	2	50.0%
26	1998	3	4	7	42.9%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
29	2001	—	—	—	—	0	1	1	0.0%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Career	—	36	59	95	37.9%	0	7	7	0.0%	4	9	13	30.8%	8	18	26	30.8%	—	117	77	194	60.3%	36	27	63	57.1%	20	16	36	55.6%	10	9	19	52.6%

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	Rika Hiraki																Naoko Sawamatsu
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
16	1988	1477	92.5	—	—	—	—	—	—	—	0.0%	-4.25	—	0–1	—	+0.24	1989	1477	96.0	—	—	—	—	—	—	—	20.0%	-2.20	0–1	—	—	+0.30
17	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1990	1669	124.7	—	—	—	—	+57	—	—	62.5%	+0.77	6–2 (75%)	5–1 (83%)	110.2	+1.75
18	1990	1451	94.5	—	—	—	—	—	—	—	0.0%	-3.25	—	0–1	—	+0.44	1991	1724	133.2	—	—	—	—	-8	-44	-170	55.4%	+0.49	5–6 (45%)	1–1	—	+2.14
19	1991	1545	126.7	—	—	—	—	+44	—	—	48.6%	0.00	3–2 (60%)	1–4 (20%)	99.8	+0.95	1992	1857	143.8	—	—	—	—	-17	-155	-248	60.7%	+0.42	7–5 (58%)	4–2 (67%)	104.0	-0.25
20	1992	1571	120.5	—	—	—	—	-4	—	+15	34.6%	-0.92	4–2 (67%)	1–3 (25%)	102.2	+0.83	1993	1853	139.0	—	—	—	—	-68	-33	-152	62.1%	+0.86	7–6 (54%)	2–0	—	+0.17
21	1993	1550	120.0	—	—	—	—	+13	—	—	32.1%	-1.05	2–2 (50%)	2–4 (33%)	98.9	-0.09	1994	1871	146.2	—	—	—	—	-20	-58	-130	60.7%	+1.00	9–3 (75%)	4–3 (57%)	106.5	-0.99
22	1994	1503	101.3	—	—	—	—	+8	—	—	20.0%	-2.50	0–2	—	—	-0.29	1995	1848	150.6	—	—	—	—	+59	-74	-92	58.6%	+0.48	10–7 (59%)	6–3 (67%)	103.1	+1.09
23	1995	1525	113.7	—	—	—	—	-16	—	—	41.7%	-0.96	0–2	1–0	—	-0.64	1996	1812	145.0	—	—	—	—	+5	+4	-6	53.2%	+0.02	5–6 (45%)	3–2 (60%)	97.8	-0.27
24	1996	1511	111.5	—	—	—	—	+3	—	+70	36.8%	-1.05	2–2 (50%)	1–1	—	+0.55	1997	1850	153.6	—	—	—	—	+44	-92	-62	54.0%	+0.35	10–6 (63%)	5–5 (50%)	103.9	-1.59
25	1997	1485	109.9	—	—	—	—	+51	—	—	41.2%	-0.62	8–10 (44%)	1–4 (20%)	98.1	+1.58	1998	1721	125.2	—	—	—	—	+37	-25	+64	40.5%	-0.62	8–6 (57%)	1–1	—	-0.88
26	1998	1501	113.1	—	—	—	—	+42	—	—	50.0%	-0.25	0–2	1–0	—	+0.59	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
29	2001	1497	97.7	—	—	—	—	—	—	—	0.0%	-4.50	—	—	—	-0.17	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Career	—	1589	119.5	—	—	—	—	+19	—	+43	36.8%	-0.95	19–24 (44%)	8–18 (31%)	94.7	+2.83	—	1971	148.7	—	—	—	—	+11	-58	-103	56.1%	+0.40	67–48 (58%)	31–18 (63%)	109.3	+0.47

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.

Rika Hiraki's most-played WTA rivals
Opponent	W	L	M	Last Played	H2H
Kimiko Date	0	4	4	Apr 18, 1996	H2H
Misumi Miyauchi	3	1	4	Jan 5, 1994	H2H
Lisa Raymond	0	3	3	Apr 18, 2001	H2H
Yuka Yoshida	1	2	3	Sep 18, 1997	H2H
Mana Endo	1	2	3	Mar 21, 1997	H2H

Naoko Sawamatsu's most-played WTA rivals
Opponent	W	L	M	Last Played	H2H
Monica Seles	0	10	10	Sep 25, 1998	H2H
Kimiko Date	3	5	8	Feb 2, 1996	H2H
Silvia Farina Elia	4	2	6	May 13, 1998	H2H
Mary Joe Fernandez	3	3	6	Oct 10, 1997	H2H
Arantxa Sanchez-Vicario	0	6	6	Aug 7, 1997	H2H