Player data updated: 2026-10-17 19:17 UTC

Rei Sakamoto

JPN Age 20 193 cm / 6'4" Plays: Right-Handed ATP Tour years active: 2025–2026

Rei Sakamoto represents Japan on the ATP Tour and is ranked No. 137, having reached a career high of No. 133. He most recently defeated Amir Omarkhanov in the Almaty Open first qualifying round on October 17, 2026.

Singles ranking

137

Career singles high

133 (Sep 21, 2026)

Elo peak

1693 (52nd percentile)

Singles record

4–8 (33.3%)

Singles titles

Prize money

$780,415

YTD W-L

4–6

Racquet

EZONE 98

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 → Last 3: 2–1

Rei Sakamoto's recent, live, and scheduled ATP matches
Opponent	Score	Result	H2H	Match Data	Date	Round	Tournament	Category	Surface
Gabriel Diallo #121	Scheduled	—	H2H	Match data	Oct 19, 2026*	Q2 Q	Almaty Open	ATP 250	Hard
Amir Omarkhanov	6-2 6-1	W	H2H	Match data	Oct 17, 2026	Q1 Q	Almaty Open	ATP 250	Hard
Alex de Minaur #9	6-7(6) 4-6	L	H2H	Match data	Oct 11, 2026	R32	Shanghai Masters	Masters 1000	Hard
Andrey Rublev #23	6-4 6-4	W	H2H	Match data	Oct 9, 2026	R64	Shanghai Masters	Masters 1000	Hard
Marco Trungelliti #90	6-3 7-5	W	H2H	Match data	Oct 7, 2026	R128	Shanghai Masters	Masters 1000	Hard

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

Rivals all rivalries →

Rei Sakamoto's most-played ATP rivals
Opponent	W	L	M	Last Played	H2H
Matteo Arnaldi	0	2	2	Sep 30, 2026	H2H
Alex de Minaur	0	1	1	Oct 11, 2026	H2H
Andrey Rublev	1	0	1	Oct 9, 2026	H2H
Marco Trungelliti	1	0	1	Oct 7, 2026	H2H
Frances Tiafoe	0	1	1	Sep 2, 2026	H2H

Career Results

Rei Sakamoto career results by season
Season	Age	Type	W	L	M	Win %	Start Rank	End Rank
2024	18	Qualifying Q	0	2	2	0.0%	—	—
2025	19	Qualifying Q	6	5	11	54.5%	—	—
2025	19	ATP	0	2	2	0.0%	365	184
2026	20	Qualifying Q	13	5	18	72.2%	—	—
2026	20	ATP	4	6	10	40.0%	200	137
Career		—	4	8	12	33.3%	—	—

Career Results by Surface

Rei Sakamoto 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 %
2024	18	Qualifying Q	0	2	2	0.0%	—	—	—	—	—	—	—	—	0	2	2	0.0%
2025	19	Qualifying Q	6	5	11	54.5%	—	—	—	—	—	—	—	—	6	5	11	54.5%
2025	19	ATP	0	2	2	0.0%	—	—	—	—	—	—	—	—	0	2	2	0.0%
2026	20	Qualifying Q	9	1	10	90.0%	2	3	5	40.0%	2	1	3	66.7%	13	5	18	72.2%
2026	20	ATP	4	6	10	40.0%	—	—	—	—	—	—	—	—	4	6	10	40.0%
Career	—	—	4	8	12	33.3%	—	—	—	—	—	—	—	—	4	8	12	33.3%

Career Results by Opponent Rank

Rei Sakamoto 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 %
2025	19	0	0	—	—	0	0	—	—	0	2	2	0.0%	0	0	—	—	0	2	2	0.0%
2026	20	0	2	2	0.0%	1	1	2	50.0%	3	2	5	60.0%	0	1	1	0.0%	4	6	10	40.0%
Career		0	2	2	0.0%	1	1	2	50.0%	3	4	7	42.9%	0	1	1	0.0%	4	8	12	33.3%

Performance Stats

Rei Sakamoto performance statistics by season
Season	Age	Sample	Aces/M	DFs/M	1st Sv%	1st Sv Pts%	2nd Sv Pts%	BP Saved%	BP Conv%	Svc Pts%	Ret Pts%
2025	19	2/2	4.0	1.0	65.5%	67.5%	52.5%	70.5%	33.5%	62.5%	27.5%
2026	20	10/10	12.6	1.8	62.6%	72.5%	58.8%	36.3%	36.4%	67.6%	31.2%
Career		12/12	11.2	1.7	63.1%	71.7%	57.8%	42.0%	35.9%	66.8%	30.6%

Advanced Stats

Rei Sakamoto 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
2024	18	1473	96.1	—	—	—	—	—	—	—	—	—	—	—	—	—
2025	19	1523	110.6	-1.19	-3.20	0.733	47.0%	—	—	—	0.0%	-1.75	—	0–1	—	-0.11
2026	20	1693	130.8	+2.17	-2.35	0.963	49.1%	+20	—	—	43.3%	-0.50	2–3 (40%)	2–5 (29%)	97.0	+0.28
Career		1693	122.0	+1.61	-2.49	0.920	48.8%	+20	—	—	38.2%	-0.65	2–3 (40%)	2–6 (25%)	96.3	+1.42

Tournament Results by Category

Grand Slams

Rei Sakamoto Grand Slams results by season
Season	Age	AO	RG	W	USO	W-L Win %
2025	19	Q1	—	—	Q2	1–2 (33%)
2026	20	R128	Q1	Q3	R64	9–4 (69%)
W-L		3–2 (60%)	0–1 (0%)	2–1 (67%)	5–2 (71%)	10–6 (62%)

Masters 1000

Rei Sakamoto Masters 1000 results by season
Season	Age	IW	MAD	MIA	SHA	W-L Win %
2024	18	—	—	Q1	—	0–1 (0%)
2025	19	—	—	R128	R128	4–2 (67%)
2026	20	Q1	Q2	R64	R32	6–4 (60%)
W-L		0–1 (0%)	1–1 (50%)	3–3 (50%)	6–2 (75%)	10–7 (59%)

ATP 500

Rei Sakamoto ATP 500 results by season
Season	Age	TKY	W-L Win %
2024	18	Q1	0–1 (0%)
2025	19	Q2	1–1 (50%)
2026	20	R32	0–1 (0%)
W-L		1–3 (25%)	1–3 (25%)

ATP 250

Rei Sakamoto ATP 250 results by season
Season	Age	ALM	CDU	HKG	MRK	STO	W-L Win %
2025	19	—	Q1	—	—	Q1	0–2 (0%)
2026	20	Q1	—	R32	Q2	—	2–2 (50%)
W-L		1–0 (100%)	0–1 (0%)	0–1 (0%)	1–1 (50%)	0–1 (0%)	2–4 (33%)

Results show the best round reached per tournament and season.

ATP Ranking History full ranking history →

Current rank

137

Career high

133

Career-high date

Sep 21, 2026

First Top 100

—

First Top 50

—

First Top 20

—

First Top 10

—

Ranking History Matrix

Rei Sakamoto ranking history by month and season
Season	Age	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2022	16	—	—	—	—	—	—	—	—	1232	1149	1172	1174
2023	17	1169	1134	1070	1038	1004	1006	1022	1013	1164	1248	1183	947
2024	18	952	915	955	971	992	826	831	817	779	791	682	413
2025	19	364	371	279	281	288	291	205	197	188	177	159	184
2026	20	203	157	166	159	153	150	166	157	137	137	—	—

Similar Players

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

Rei Sakamoto's most statistically similar ATP players
Player	Country	Peak ranking	Peak Elo	M	W	L	Win %	Prize money	Years	Rivalries	Match log
Jack Pinnington Jones (active player)	GBR	#132	1,581	11	4	7	36.4%	$733,216	2025–2026	Rivalries	Match log
Colton Smith (active player)	USA	#133	1,620	10	3	7	30.0%	$621,954	2025–2026	Rivalries	Match log
Federico Agustin Gomez (active player)	ARG	#133	1,604	10	3	7	30.0%	$814,000	2024–2026	Rivalries	Match log
Stefanos Sakellaridis (active player)	GRE	#134	1,551	3	1	2	33.3%	$485,598	2025–2026	Rivalries	Match log
Ugo Blanchet (active player)	FRA	#139	1,663	13	4	9	30.8%	$1,032,907	2024–2026	Rivalries	Match log
Mark Lajal (active player)	EST	#140	1,642	8	3	5	37.5%	$793,952	2023–2026	Rivalries	Match log
Pablo Llamas Ruiz (active player)	ESP	#116	1,685	9	3	6	33.3%	$1,100,912	2025–2026	Rivalries	Match log
Nicolai Budkov Kjaer (active player)	NOR	#118	1,626	10	3	7	30.0%	$746,543	2025–2026	Rivalries	Match log
Juan Carlos Prado Angelo (active player)	BOL	#151	1,555	3	1	2	33.3%	$411,248	2026–2026	Rivalries	Match log
Gustavo Heide (active player)	BRA	#116	1,599	10	3	7	30.0%	$725,995	2024–2026	Rivalries	Match log
Alex Bolt (active player)	AUS	#125	1,726	53	18	35	34.0%	$2,276,875	2015–2026	Rivalries	Match log
Andrea Vavassori (active player)	ITA	#128	1,699	26	11	15	42.3%	$4,290,268	2021–2026	Rivalries	Match log

Equipment

Equipment summary

Yonex

Model: EZONE 98
Frame style: Control / Power / Precision

The manufacturer listing identifies an endorsed model and its published playing characteristics. It does not necessarily identify the player's exact match-used frame.

Official Yonex source All verified ATP player equipment →

Last source check: Oct 17, 2026

Frequently Asked Questions

How old is Rei Sakamoto?: Rei Sakamoto is 20 years old, born on June 24, 2006.
Which country does Rei Sakamoto represent?: Rei Sakamoto represents Japan in TennisDB's ATP records.
How tall is Rei Sakamoto?: Rei Sakamoto is 193 cm / 6'4".
Is Rei Sakamoto left-handed or right-handed?: Rei Sakamoto plays right-handed.
How many Grand Slam singles titles has Rei Sakamoto won?: Rei Sakamoto has not won a Grand Slam singles title.
How many Masters 1000 titles has Rei Sakamoto won?: TennisDB does not group any of Rei Sakamoto's titles under the modern Masters 1000 category.
What is Rei Sakamoto's highest ATP ranking?: Rei Sakamoto's career-high ATP singles ranking is world No. 133, first achieved on September 21, 2026.
What is Rei Sakamoto's career win-loss record?: Rei Sakamoto has a career ATP singles record of 4 wins and 8 losses (33.3%).
How much career prize money has Rei Sakamoto earned?: Rei Sakamoto has earned at least $780,415 in career prize money from professional tennis.
Which seasons of Rei Sakamoto's career appear in TennisDB?: Rei Sakamoto appears in TennisDB's ATP main-tour match records from 2025 through 2026.
Who has Rei Sakamoto faced most often?: Rei Sakamoto's most frequent opponent is Matteo Arnaldi, with a head-to-head record of 0–2 across 2 meetings.
What racquet does Rei Sakamoto use?: Rei Sakamoto is officially associated with the Yonex EZONE 98. The manufacturer's listing does not necessarily identify the exact match-used frame.