Rioko Umekuni

2024

J300Wanju		2R
J200Chuncheon		1R
J200Nanjing		1R
J300Collegepark		2R
J100Harare-2	[5]	2R
J100Harare	[6]	Quarter
J60Harare	[1]	3R
J100Veracruz	[2]	2R
J300Nonthaburi-2		3R
J200Kualalumpur		1R
J100Lamarsa	[3]	2R
J100Sousse	[3]	1R
J60Dehradun	[1]	Win
J60Gurugram	[1]	Final
J200Nonthaburi		1R
J100Bloemfontein	[2]	1R
J100Nairobi	[4]	Semi
J60Nairobi	[3]	Quarter
J200Kolkata		2R
J100Chandigarh		Semi

2023

J100Pune	[10]	2R
J300Nonthaburi-2		1R
J200Kualalumpur		2R
J60Nonthaburi-4	[8]	Quarter
J60Seremban	[3]	Quarter
J300Wanju		2R
J100Andong		1R
J100Kualalumpur	[14]	3R
J100Sarawak	[14]	2R
J60Singapore-3	[3]	1R
J100Santodomingo-4		1R
J100Santodomingo-3		1R
J60Cholpon-Ata-2	[6]	1R
J60Cholpon-Ata	[4]	1R

Nation

JPN

Generation

Born in 2007 (17-18 years old)

World Ranking

Junior World Ranking　449th

Year-end Junior World Ranking

Year-end 2024 258th
Year-end 2023 597th
Year-end 2022 537th
Year-end 2021 1596th

Rival

Anastasiya Krymkova (0-3)

[2024] J200KOLKATA 3-6 7-5 4-6
[2023] J60CHOLPON-ATA-2 3-6 2-6
[2023] J60CHOLPON-ATA 5-7 0-6

Polina Nikitina (1-1)

[2024] J60GURUGRAM 6-1 5-7 2-6
[2024] J60DEHRADUN 1-6 6-3 6-3

Viktoriia Sedova (2-0)

[2024] J60GURUGRAM 7-5 6-1
[2024] J60DEHRADUN 6-3 6-2

Aishwarya Jadhav (0-2)

[2024] J60HARARE 6-2 6-7 1-6
[2024] J100HARARE 5-7 1-6

Avani Chitale (2-0)

[2024] J100NAIROBI 6-2 6-1
[2024] J60GURUGRAM 6-2 6-2

Match Details

2024 J300Wanju

W	1R	So Yuna	1-6 6-2 6-4
L	2R	Yuhan Wang	2-6 3-6

2024 J100Harare

W	2R	Chanelle Zhuwakini	6-3 6-3
W	3R	Koronayashe Rugara	6-2 4-6 6-3
L	QF	Aishwarya Jadhav	5-7 1-6

2024 J60Harare

W	2R	Paballo Chuene	6-1 6-0
L	3R	Aishwarya Jadhav	6-2 6-7 1-6

2024 J300Nonthaburi-2

W	1R	Katie Oliver	6-3 7-6
W	2R	I Wen Wan	7-5 6-1
L	3R	Lily Taylor	2-6 4-6

2024 J100Lamarsa

W	1R	Sofia Martianova	6-2 6-0
L	2R	Sara Husar	6-0 1-2

2024 J60Dehradun

W	1R	Jaya Kapoor	6-3 6-1
W	2R	Maelys Thiery James	6-2 6-1
W	QF	Diya Chaudhary	6-2 6-2
W	SF	Viktoriia Sedova	6-3 6-2
W	F	Polina Nikitina	1-6 6-3 6-3

2024 J60Gurugram

W	2R	Viktoriia Sedenkova	6-0 6-4
W	3R	Avani Chitale	6-2 6-2
W	QF	Prisha Nikhil Shinde	6-1 6-3
W	SF	Viktoriia Sedova	7-5 6-1
L	F	Polina Nikitina	6-1 5-7 2-6

2024 J100Nairobi

W	2R	Abigail Nabasinga Mulungi	6-0 6-0
W	3R	Avani Chitale	6-2 6-1
W	QF	Sezim Sagynbaeva	7-5 6-1
L	SF	Lana Petkovic	5-7 4-6

2024 J60Nairobi

W	2R	Ghita Sebbar	6-0 6-1
W	3R	Sreemanya Reddy Anugonda	6-2 6-1
L	QF	Lara Isabella Kralus	6-2 1-6 4-6

2024 J200Kolkata

W	1R	Diya Ramesh Ramesh	6-0 6-2
L	2R	Anastasiya Krymkova	3-6 7-5 4-6

2024 J100Chandigarh

W	1R	Tejasvi Dabas	2-6 7-5 7-6
W	2R	Anya Murthy	6-0 6-1
W	QF	Samaira Pahwa	6-3 6-4
L	SF	Shihomi Li Xuan Leong	4-6 2-6

2023 J200Kualalumpur

W	1R	Hui Yii Soo	6-3 6-1
L	2R	Gabia Paskauskas	2-6 4-6

2023 J60Nonthaburi-4

W	2R	Pimmada Lim	6-2 6-0
W	3R	Rishitha Reddy Basireddy	6-4 6-3
L	QF	Yu-Ning Tsai	1-6 0-6

2023 J60Seremban

W	2R	Divija Manneni	6-0 6-1
W	3R	Chae Yeon Kate Lee	6-1 6-0
L	QF	Joanne Lynn Hartono	2-6 4-6

2023 J300Wanju

W	1R	Min Kyeong Kim	3-6 6-1 6-0
L	2R	Lidia Podgorichani	1-6 5-7

2023 J100Kualalumpur

W	2R	Dhevieena Sarawanan	6-0 6-1
L	3R	Kimiko Cooper	0-6 1-6

Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 5774, Number of registered players: 3,011, Number of registered results: 222,093

Champion	Ryo Tabata
Champion	Xinran Sun