Hyeon Seok Seo

2025

J300Nonthaburi		2R
J200Nonthaburi		3R
J200Kolkata	[7]	Quarter
J200Chandigarh		2R
J300Newdelhi		Semi

2024

J300Wanju		1R
J100Seoul	[1]	Semi
J200Chuncheon		2R
J100Kuching	[2]	Quarter
J100Kualalumpur	[3]	Semi
J60Jakarta-2	[1]	2R
J60Jakarta	[1]	Win
J200Almaty		1R
J100Almaty	[12]	3R
J300Nonthaburi-2		1R
J200Kualalumpur		1R
J300Kuching		1R
J60Andong	[1]	Final
J100Wuhan	[5]	2R
J100Jiujiang	[3]	Final
J200Kolkata		2R
J200Newdelhi		2R
J100Chandigarh		Final

2023

J300Nonthaburi-2		2R
J200Kualalumpur		1R
J100Hongkong		Quarter
J300Wanju		1R
J200Chuncheon		2R
J100Andong		Quarter
J60Dededo	[1]	Final
J30Singapore	[5]	Quarter

Nation

KOR

Generation

Born in 2007 (17-18 years old)

World Ranking

Junior World Ranking　127th

Year-end Junior World Ranking

Rival

Varun Verma (1-1)

[2025] J200CHANDIGARH 6-4 6-3
[2024] J100KUALALUMPUR 6-7 4-6

Chen Hui Ho (1-1)

[2024] J100KUALALUMPUR 7-6 6-3
[2024] J100KUCHING 2-6 0-6

Shanker Heisnam (2-0)

[2024] J100CHANDIGARH 6-2 7-5
[2024] J200NEWDELHI 6-3 6-4

Tomoki Fujiwara (1-1)

[2024] J60JAKARTA 6-4 6-7 6-3
[2024] J60JAKARTA-2 5-7 1-6

Moobeen Kim (0-2)

[2024] J60ANDONG 2-6 5-7
[2023] J100ANDONG 0-6 3-6

Match Details

2025 J300Nonthaburi

W	1R	Ruslan Kastsiukevich	6-4 6-3
L	2R	Ryo Tabata	3-6 3-6

2025 J200Nonthaburi

W	1R	Koshiro Nakamae	6-1 6-3
W	2R	Hitesh Chauhan	4-6 6-1 6-3
L	3R	Kuan-Shou Chen	4-6 1-6

2025 J200Kolkata

W	1R	Aradhya Kshitij	2-6 6-3 7-6
W	2R	Sehaj Singh Pawar	4-6 6-3 7-5
L	QF	Arjun Rathi	0-6 5-7

2025 J200Chandigarh

W	1R	Varun Verma	6-4 6-3
L	2R	Kerem Yilmaz	2-6 1-6

2025 J300Newdelhi

W	1R	Aarav Chawla	6-2 6-1
W	2R	Roman Kharlamov	6-4 6-2
W	QF	Arturs Zagars	7-5 6-4
L	SF	Roshan Santhosh	4-6 0-6

2024 J100Seoul

W	1R	Tae Woo Kim	6-1 6-3
W	2R	Geonhyung Kim	6-3 6-1
W	QF	Seung Min Lee	6-1 6-2
L	SF	Kunanan Pantaratorn	6-2 6-7 4-6

2024 J200Chuncheon

W	1R	Rohan Hazratwala	4-6 6-4 6-3
L	2R	Dmitry Bessonov	1-6 3-6

2024 J100Kuching

W	2R	Matthew Goh	6-0 6-1
W	3R	Vishal Prakash	6-3 6-4
L	QF	Chen Hui Ho	2-6 0-6

2024 J100Kualalumpur

W	2R	Dario Navarro	4-6 6-3 6-3
W	3R	Chen Hui Ho	7-6 6-3
W	QF	Cameron Burton	6-4 6-2
L	SF	Varun Verma	6-7 4-6

2024 J60Jakarta

W	1R	Jaydon Barki	6-1 6-0
W	2R	Tomoki Fujiwara	6-4 6-7 6-3
W	QF	Aldhito Ramadhan Dwi Kurniawan	6-3 6-3
W	SF	Rafalentino Ali Da Costa	6-2 5-7 6-3
W	F	Dongmin Kim	6-1 6-3

2024 J100Almaty

W	2R	Yauheni Bursau	6-3 6-3
L	3R	Artem Bogomolov	3-6 6-4 3-6

2024 J60Andong

W	1R	Min Kyeol Lee	6-4 6-1
W	2R	Daniel Yang	6-4 7-5
W	QF	Jaejun Kim	7-5 6-1
W	SF	Seungjun Yu	6-2 6-3
L	F	Moobeen Kim	2-6 5-7

2024 J100Wuhan

W	1R	Tianqi Xie	6-0 6-1
L	2R	Eric William Wang	2-6 0-6

2024 J100Jiujiang

W	1R	Haolong He	3-6 6-0 6-4
W	2R	Aidan Lam Meng Bart	6-1 6-4
W	QF	Kangyuan Shi	6-2 6-4
W	SF	Yue Xia	1-6 6-3 6-2
L	F	Weiyi Kong	3-6 1-6

2024 J200Kolkata

W	1R	Prakaash Sarran	6-3 6-1
L	2R	Cahir Warik	4-6 6-7

2024 J200Newdelhi

W	1R	Shanker Heisnam	6-3 6-4
L	2R	Nikita Bilozertsev	1-6 0-6

2024 J100Chandigarh

W	1R	Debasis Sahoo	6-2 6-3
W	2R	Jaden Dewandaka Tan	6-3 6-2
W	QF	Luc Wieland	6-4 2-6 6-4
W	SF	Shanker Heisnam	6-2 7-5
L	F	Moise Kouame	2-6 2-6

2023 J300Nonthaburi-2

W	1R	Xiao-Feng Zhou	7-5 5-7 6-3
L	2R	Danial Rakhmatullayev	1-6 1-6

2023 J100Hongkong

W	1R	Cho Kong Ethan Luk	6-0 6-1
W	2R	Bill Chan	7-5 7-6
L	QF	Jack Cheng	6-1 1-6 5-7

2023 J200Chuncheon

W	1R	Aditya Govila	4-6 6-2 6-2
L	2R	Jangjun Kim	4-6 1-6

2023 J100Andong

W	1R	Hikaru Takahashi	6-2 6-3
W	2R	Hugh Winter	6-2 6-1
L	QF	Moobeen Kim	0-6 3-6

2023 J60Dededo

W	1R	Tran Quoc Cuong	7-6 4-6 12-10
W	2R	Eito Komada	6-4 6-2
W	QF	Lin Hao-Yu	6-7 6-3 10-8
W	SF	Xiao-Feng Zhou	7-5 7-5
L	F	Juan Kim	3-6 6-3 4-6

2023 J30Singapore

W	1R	Jason Halim	6-4 6-4
W	2R	Raphael Dandi Perwira Paska	6-0 6-4
L	QF	Michael Dylan Jimenez	6-3 2-6 4-6

Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 5778, Number of registered players: 4,878, Number of registered results: 222,189

Champion	Ryo Tabata
Champion	Xinran Sun