Player data updated: 2026-09-01 02:16 UTC

Yaoki Ishii

JPN Age 49 Plays: Right-Handed ATP Tour years active: 2000–2001

Yaoki Ishii represented Japan on the ATP Tour and reached a career-high ranking of No. 207. In TennisDB's records, Yaoki Ishii finished with a career record of 0–4 and no singles titles.

Peak ranking

207 (Feb 28, 2000)

Elo peak

1514 (6th percentile)

Career record

0–4 (0.0%)

Career titles

Prize money

$142,174

Records cover recorded main-draw singles results in TennisDB's ATP event archive, including credited walkovers; qualifying is shown separately below.

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ATP Matches full match log →

Yaoki Ishii's recent, live, and scheduled ATP matches
Opponent	Score	Result	H2H	Match Data	Date	Round	Tournament	Category	Surface
Davide Sanguinetti #256	4-6 6-7(2)	L	H2H	Match data	Oct 1, 2007	Q1 Q	Japan Open	ATP 500	Hard
Jean-Rene Lisnard #142	4-6 4-6	L	H2H	Match data	Jan 17, 2005	Q1 Q	Australian Open	Grand Slam	Hard
James Blake #109	3-6 4-6	L	H2H	Match data	Oct 3, 2001*	R64	Japan Open	ATP 500	Hard
Hyung-Taik Lee #97	1-6 3-6	L	H2H	Match data	Sep 20, 2001*	R32	Shanghai Masters	ATP 250	Hard
Gregory Carraz #245	5-7 7-6(2) 3-6	L	H2H	Match data	Aug 27, 2001	Q1 Q	US Open	Grand Slam	Hard

Qualifying matches are shown here but excluded from main-draw summaries and leaderboards.

Rivals all rivalries →

Yaoki Ishii's most-played ATP rivals
Opponent	L	M	Last Played	H2H
James Blake	1	1	Oct 3, 2001	H2H
Hyung-Taik Lee	1	1	Sep 20, 2001	H2H
Wayne Arthurs	1	1	Oct 11, 2000	H2H
Jiri Vanek	1	1	Jan 6, 2000	H2H

Career Results

Yaoki Ishii career results by season
Season	Age	Type	W	L	M	Win %	Start Rank	End Rank
2000	23	Qualifying Q	2	4	6	33.3%	—	—
2000	23	ATP	0	2	2	0.0%	220	345
2001	24	Qualifying Q	0	1	1	0.0%	—	—
2001	24	ATP	0	2	2	0.0%	345	244
2005	28	Qualifying Q	0	1	1	0.0%	—	—
2007	30	Qualifying Q	0	1	1	0.0%	—	—
Career		—	0	4	4	0.0%	—	—

Career Results by Surface

Yaoki Ishii career results by season and surface
Season	Age	Type	Hard				Clay				Grass				Total
Season	Age	Type	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %
2000	23	Qualifying Q	2	2	4	50.0%	0	1	1	0.0%	0	1	1	0.0%	2	4	6	33.3%
2000	23	ATP	0	2	2	0.0%	—	—	—	—	—	—	—	—	0	2	2	0.0%
2001	24	Qualifying Q	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%
2001	24	ATP	0	2	2	0.0%	—	—	—	—	—	—	—	—	0	2	2	0.0%
2005	28	Qualifying Q	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%
2007	30	Qualifying Q	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%
Career	—	—	0	4	4	0.0%	—	—	—	—	—	—	—	—	0	4	4	0.0%

Career Results by Opponent Rank

Yaoki Ishii career results by season and opponent rank
Season	Age	1-10				11-30				31-100				100+				Total
Season	Age	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %
2000	23	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	1	1	0.0%	0	2	2	0.0%
2001	24	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	1	1	0.0%	0	2	2	0.0%
Career		0	0	—	—	0	0	—	—	0	2	2	0.0%	0	2	2	0.0%	0	4	4	0.0%

Advanced Stats

Yaoki Ishii advanced statistics by season
Season	Age	Elo	P+	Serve+	Return+	PD	TPW%	Hard Elo	Clay Elo	Grass Elo	Set Win %	Set Margin	Dec. Set	Tiebreak	Pressure+	Schedule
2000	23	1451	95.3	—	—	—	—	—	—	—	0.0%	-2.50	—	—	—	+0.05
2001	24	1416	94.4	—	—	—	—	—	—	—	0.0%	-3.25	—	—	—	+0.11
2005	28	1406	99.9	—	—	—	—	—	—	—	—	—	—	—	—	—
2007	30	1395	100.2	—	—	—	—	—	—	—	—	—	—	—	—	—
Career		1514	95.2	—	—	—	—	—	—	—	0.0%	-2.88	—	—	—	+4.00

Tournament Results by Category

Grand Slams

Yaoki Ishii Grand Slams results by season
Season	Age	AO	RG	W	USO	W-L Win %
2000	23	Q3	Q1	Q1	Q1	2–4 (33%)
2001	24	—	—	—	Q1	0–1 (0%)
2005	28	Q1	—	—	—	0–1 (0%)
W-L		2–2 (50%)	0–1 (0%)	0–1 (0%)	0–2 (0%)	2–6 (25%)

ATP 500

Yaoki Ishii ATP 500 results by season
Season	Age	TKY	W-L Win %
2000	23	R64	0–1 (0%)
2001	24	R64	0–1 (0%)
2007	30	Q1	0–1 (0%)
W-L		0–3 (0%)	0–3 (0%)

ATP 250

Yaoki Ishii ATP 250 results by season
Season	Age	CHN	SHA	W-L Win %
2000	23	R32	—	0–1 (0%)
2001	24	—	R32	0–1 (0%)
W-L		0–1 (0%)	0–1 (0%)	0–2 (0%)

Results show the best round reached per tournament and season.

ATP Ranking History full ranking history →

Career high

207

Career-high date

Feb 28, 2000

First Top 100

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First Top 50

—

First Top 20

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First Top 10

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Ranking History Matrix

Yaoki Ishii ranking history by month and season
Season	Age	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1995	18	—	—	—	—	—	—	—	—	—	—	—	1275
1996	19	1275	1263	1263	737	731	719	667	675	683	675	675	694
1997	20	691	692	679	1019	820	820	617	622	542	542	554	438
1998	21	446	444	440	419	432	324	308	294	305	302	299	337
1999	22	336	338	306	276	281	367	376	377	375	298	237	239
2000	23	210	207	230	248	245	241	250	257	242	266	347	345
2001	24	335	352	332	322	315	279	249	247	258	262	248	244
2002	25	267	261	274	284	313	384	550	666	721	786	—	—
2004	27	—	—	—	—	—	1108	836	794	721	722	637	643
2005	28	644	661	656	645	607	581	631	666	715	694	798	790
2006	29	786	782	795	726	747	782	764	627	633	641	637	643
2007	30	640	639	614	690	616	616	605	720	630	637	626	625
2008	31	622	634	636	539	607	640	648	646	737	739	763	765
2009	32	767	757	773	1097	1094	1037	968	961	904	831	808	798
2010	33	798	796	790	798	820	837	904	936	938	998	1031	1029
2011	34	1034	1033	1035	1152	1164	1043	1270	1264	1262	1348	1360	1352
2012	35	1348	1348	1348	1371	1389	1518	—	—	—	—	—	—

Similar Players

Other ATP players with comparable peak level, era, career record, and career scale.

Yaoki Ishii's most statistically similar ATP players
Player	Country	Peak Rank	Peak Elo	M	W	L	Win %	Years	Match Log
Mahesh Bhupathi	IND	217	1,500	16	2	14	12.5%	1995–2002	Match log
Andy Ram	ISR	187	1,527	9	1	8	11.1%	2000–2005	Match log
Jaymon Crabb	AUS	181	1,506	9	1	8	11.1%	1997–2004	Match log
Ivaylo Traykov	BUL	211	1,504	2	1	1	50.0%	2001–2001	Match log
Satoshi Iwabuchi	JPN	223	1,500	20	4	16	20.0%	1993–2008	Match log
Joshua Eagle	AUS	219	1,526	15	3	12	20.0%	1993–2001	Match log
Alexander Reichel	USA	204	1,549	11	3	8	27.3%	1991–2004	Match log
Petr Luxa	CZE	150	1,500	21	1	20	4.8%	1995–2003	Match log
Luke Milligan	GBR	217	1,570	10	3	7	30.0%	1996–2001	Match log
Wesley Whitehouse	NZL	214	1,561	11	4	7	36.4%	1998–2007	Match log
Marcus Sarstrand	SWE	240	1,524	4	1	3	25.0%	1997–2003	Match log
Simon Larose	CAN	189	1,553	13	5	8	38.5%	1999–2004	Match log

Frequently Asked Questions

How old is Yaoki Ishii?: Yaoki Ishii is 49 years old, born on April 29, 1977.
Which country does Yaoki Ishii represent?: Yaoki Ishii represents Japan in TennisDB's ATP records.
Is Yaoki Ishii left-handed or right-handed?: Yaoki Ishii plays right-handed.
How many Grand Slams has Yaoki Ishii won?: Yaoki Ishii has not won a Grand Slam title.
How many Masters 1000 titles has Yaoki Ishii won?: TennisDB does not group any of Yaoki Ishii's titles under the modern Masters 1000 category.
What is Yaoki Ishii's highest ATP ranking?: Yaoki Ishii's career-high ATP singles ranking is world No. 207, first achieved on February 28, 2000.
What is Yaoki Ishii's career win-loss record?: Yaoki Ishii has a career ATP singles record of 0 wins and 4 losses (0.0%).
How much career prize money has Yaoki Ishii earned?: Yaoki Ishii has earned at least $142,174 in career prize money from professional tennis.
Which seasons of Yaoki Ishii's career appear in TennisDB?: Yaoki Ishii appears in TennisDB's ATP main-tour match records from 2000 through 2001.
Who has Yaoki Ishii faced most often?: Yaoki Ishii's most frequent opponent is James Blake, with a head-to-head record of 0–1 across 1 meeting.