H2H data updated: 2026-09-13 00:00 UTC

Rika Hiraki vs Kimberly Po Messerli H2H: 0-2

Kimberly Po Messerli holds a 2–0 lead over Rika Hiraki in their WTA head-to-head. Across 2 main-draw meetings, Kimberly Po Messerli leads 2–0 on hard courts. Most recently, Kimberly Po Messerli won the 1997 Toyota Princess Cup round of 16 3-6 7-6 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.

Rika Hiraki

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

H2H

0 – 2

2 main-draw meetings

Kimberly Po Messerli

USA Age 54 Right-Handed 160 cm / 5'3"

H2H Match Log

Player	Score	Player	Match Data	Date	Round	Tournament	Category	Surface
Kimberly Po Messerli	3-6 7-6 6-3	Rika Hiraki #96	Match data	Sep 19, 1997*	R16	Toyota Princess Cup	Tier II → modern equivalent WTA 500	Hard
Kimberly Po Messerli	6-2 6-2	Rika Hiraki #86	Match data	Jan 19, 1997*	R32	Australian Open	Grand Slam	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
Kimberly Po Messerli	—	—	—	1,879	118	133	47.0%	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	Rika Hiraki							Kimberly Po Messerli
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	—	—	—	—	—	—	—
17	—	—	—	—	—	—	—	1989	0–1	0.0%	—	1,486	0	0
18	1990	0–2	0.0%	#248	1,451	0	0	—	—	—	—	—	—	—
19	1991	8–8	50.0%	#105	1,544	0	0	1991	5–4	55.6%	—	1,568	0	0
20	1992	8–15	34.8%	#122	1,570	0	0	1992	14–16	46.7%	—	1,654	0	0
21	1993	8–18	30.8%	#134	1,550	0	0	1993	20–19	51.3%	—	1,776	0	0
22	1994	2–8	20.0%	#187	1,503	0	0	1994	11–17	39.3%	—	1,701	0	0
23	1995	4–7	36.4%	#152	1,524	0	0	1995	4–13	23.5%	—	1,609	0	0
24	1996	6–12	33.3%	#103	1,510	0	0	1996	20–13	60.6%	—	1,806	0	0
25	1997	9–16	36.0%	#93	1,485	0	0	1997	27–20	57.4%	—	1,790	0	0
26	1998	3–4	42.9%	#168	1,501	0	0	1998	11–15	42.3%	—	1,743	0	0
27	—	—	—	—	—	—	—	1999	6–13	31.6%	—	1,653	0	0
28	—	—	—	—	—	—	—	2000	0–2	0.0%	—	1,611	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																	Kimberly Po Messerli
	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%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
17	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1989	0	1	1	0.0%	—	—	—	—	—	—	—	—	—	—	—	—
18	1990	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
19	1991	8	6	14	57.1%	0	1	1	0.0%	0	1	1	0.0%	—	—	—	—	1991	5	4	9	55.6%	—	—	—	—	—	—	—	—	—	—	—	—
20	1992	4	10	14	28.6%	0	1	1	0.0%	2	1	3	66.7%	2	3	5	40.0%	1992	9	10	19	47.4%	0	1	1	0.0%	4	3	7	57.1%	1	2	3	33.3%
21	1993	4	10	14	28.6%	0	1	1	0.0%	0	2	2	0.0%	4	5	9	44.4%	1993	10	9	19	52.6%	2	2	4	50.0%	2	3	5	40.0%	6	5	11	54.5%
22	1994	2	6	8	25.0%	—	—	—	—	—	—	—	—	0	2	2	0.0%	1994	3	6	9	33.3%	2	4	6	33.3%	1	2	3	33.3%	5	5	10	50.0%
23	1995	1	4	5	20.0%	—	—	—	—	1	1	2	50.0%	2	2	4	50.0%	1995	3	4	7	42.9%	0	5	5	0.0%	0	2	2	0.0%	1	2	3	33.3%
24	1996	5	8	13	38.5%	0	1	1	0.0%	1	2	3	33.3%	0	1	1	0.0%	1996	13	6	19	68.4%	—	—	—	—	1	2	3	33.3%	6	5	11	54.5%
25	1997	9	10	19	47.4%	0	2	2	0.0%	0	2	2	0.0%	0	2	2	0.0%	1997	21	13	34	61.8%	2	2	4	50.0%	1	2	3	33.3%	3	3	6	50.0%
26	1998	3	4	7	42.9%	—	—	—	—	—	—	—	—	—	—	—	—	1998	5	8	13	38.5%	1	3	4	25.0%	4	2	6	66.7%	1	2	3	33.3%
27	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1999	3	6	9	33.3%	1	3	4	25.0%	2	2	4	50.0%	0	2	2	0.0%
28	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2000	—	—	—	—	—	—	—	—	0	1	1	0.0%	0	1	1	0.0%
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%	—	72	67	139	51.8%	8	20	28	28.6%	15	19	34	44.1%	23	27	50	46.0%

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																Kimberly Po Messerli
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	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
17	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1989	1486	97.5	—	—	—	—	—	—	—	0.0%	-2.50	—	0–1	—	+0.12
18	1990	1451	94.5	—	—	—	—	—	—	—	0.0%	-3.25	—	0–1	—	+0.44	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
19	1991	1545	126.7	—	—	—	—	+44	—	—	48.6%	0.00	3–2 (60%)	1–4 (20%)	99.8	+0.95	1991	1568	120.4	—	—	—	—	+29	—	—	56.5%	-0.26	2–3 (40%)	1–0	—	-0.01
20	1992	1571	120.5	—	—	—	—	-4	—	+15	34.6%	-0.92	4–2 (67%)	1–3 (25%)	102.2	+0.83	1992	1655	127.7	—	—	—	—	-8	—	-30	45.6%	-0.40	5–5 (50%)	4–2 (67%)	103.5	+0.99
21	1993	1550	120.0	—	—	—	—	+13	—	—	32.1%	-1.05	2–2 (50%)	2–4 (33%)	98.9	-0.09	1993	1777	145.0	—	—	—	—	+17	-217	-153	50.0%	-0.15	6–4 (60%)	5–2 (71%)	106.5	-0.91
22	1994	1503	101.3	—	—	—	—	+8	—	—	20.0%	-2.50	0–2	—	—	-0.29	1994	1702	128.7	—	—	—	—	+38	-143	-106	44.6%	-0.51	4–7 (36%)	2–2 (50%)	—	-0.08
23	1995	1525	113.7	—	—	—	—	-16	—	—	41.7%	-0.96	0–2	1–0	—	-0.64	1995	1610	120.0	—	—	—	—	+98	-130	—	29.7%	-1.11	0–3 (0%)	1–3 (25%)	93.6	+0.25
24	1996	1511	111.5	—	—	—	—	+3	—	+70	36.8%	-1.05	2–2 (50%)	1–1	—	+0.55	1996	1807	155.2	—	—	—	—	+52	—	-239	57.5%	+0.44	5–4 (56%)	1–1	—	+0.41
25	1997	1485	109.9	—	—	—	—	+51	—	—	41.2%	-0.62	8–10 (44%)	1–4 (20%)	98.1	+1.58	1997	1790	146.8	—	—	—	—	+28	-289	-240	55.0%	+0.44	9–8 (53%)	7–2 (78%)	103.7	+1.04
26	1998	1501	113.1	—	—	—	—	+42	—	—	50.0%	-0.25	0–2	1–0	—	+0.59	1998	1743	135.6	—	—	—	—	+16	-267	-100	44.8%	-0.59	2–4 (33%)	4–1 (80%)	102.7	-0.85
27	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1999	1653	120.4	—	—	—	—	+21	-179	-26	38.1%	-1.00	0–4 (0%)	1–4 (20%)	93.6	-1.39
28	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2000	1611	101.2	—	—	—	—	—	—	—	20.0%	-1.00	0–1	0–2	—	+0.12
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	—	1880	144.9	—	—	—	—	+29	-197	-111	47.9%	-0.22	33–43 (43%)	26–20 (57%)	102.5	-0.12

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

Kimberly Po Messerli's most-played WTA rivals
Opponent	W	L	M	Last Played	H2H
Lindsay Davenport	1	6	7	Nov 13, 1998	H2H
Nathalie Tauziat	3	4	7	Oct 8, 1998	H2H
Anke Huber	2	3	5	Oct 21, 1999	H2H
Barbara Schett	1	4	5	May 27, 1999	H2H
Patricia Hy Boulais	2	3	5	May 21, 1998	H2H