Ko Nagashima

2025

J100 KAWAGUCHI		Quarter
J60 MIKICITY		Quarter
J30 MUNAKATA		Quarter

2024

J30 GIFU		1R
J30 MATSUYAMA		Quarter
J60 MIKICITY-2		2R
J60 MIKICITY		1R
J30 KURUME		2R

2023

J30 MATSUYAMA		Quarter
J30 GIFU		1R
J30 KURUME		2R

2022

YOshis CUP		6th
J5 MATSUYAMA		2R
AI SUGIYAMA CUP		1R
J5 CHIGASAKI		1R
J2 NAGOYA		1R
J5 KURUME		1R

2021

J5 MATSUYAMA

Nation

JPN

Generation

Born in 2007 (17-18 years old)

World Ranking

Junior World Ranking　1429th

Year-end Junior World Ranking

Year-end 2024 2168th
Year-end 2023 2781th
Year-end 2022 3110th

Match Details

2025 J100 KAWAGUCHI

W	1R	Kanato Maruyama	6-1 6-3
W	2R	Yuki Nishizawa	6-4 6-2
L	QF	Daisuke Hashimoto	2-6 2-6

2025 J60 MIKICITY

W	1R	Yuki Nishizawa	6-2 6-2
W	2R	Sota Kagawa	6-4 7-6
L	QF	Koki Nara	6-4 3-6 0-6

2025 J30 MUNAKATA

W	1R	Zachary Sng	6-1 6-1
W	2R	Tomoki Fujiwara	6-2 6-2
L	QF	Ryo Kikawa	3-6 4-6

2024 J30 MATSUYAMA

W	1R	Shintaro Ogaki	6-3 6-4
W	2R	Se Hyun Lee	6-3 6-3
L	QF	Riku Nakamoto	2-6 6-4 8-10

2024 J60 MIKICITY-2

W	1R	Kamonpanyakorn Thadpong	6-2 6-0
L	2R	Yoshihiro Sakurai	1-6 3-6

2024 J30 KURUME

W	1R	Geon Hyeok Jeon	6-2 6-3
L	2R	Shion Itsusaki	2-6 2-6

2023 J30 MATSUYAMA

W	1R	Xiao-Feng Zhou	7-5 6-3
W	2R	Taku Ito	7-6 6-3
L	QF	Koshiro Nakamae	6-4 2-6 4-6

2023 J30 KURUME

W	1R	Yuki Okahashi	6-2 6-3
L	2R	Roshu Fujioka	4-6 2-6

2022 J5 MATSUYAMA

W	1R	Kanata Ozaki	6-3 6-1
L	2R	Toa Maeda	6-7 1-6

Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 10179, Number of registered players: 6,443, Number of registered results: 375,166