Kohshi Ishibashi

2025

J100Guatemala	[4]	1R
J200Hanover		1R
J200Stpoelten	[7]	1R
J200St.Poelten	[7]	1R
J300Nonthaburiclosedregionalchampionhsips		2R
J300Kuching		2R
J200Kualalumpur	[15]	2R
J100Istanbul-3	[1]	Semi
J100Istanbul-2	[2]	1R
J300Nonthaburi		1R
J200Nonthaburi		1R
J200Santodomingo-2	[6]	2R
J200Santodomingo	[6]	2R

2024

J300Zapopan		1R
J300Wanju	[12]	3R
J500Osaka		1R
J300Durban
J200Durban		1R
J100Pretoria	[3]	Quarter
J100Johannesburg	[3]	Quarter
J200Sydney	[13]	Quarter
J200Tampico		1R
J100Veracruz	[11]	2R
J100Santodomingo-2	[4]	Final
J100Santodomingo	[6]	Final
J100Tlaxcala	[4]	Final
J100Burlington		2R
J200Woodbridge		1R
J100Wuhan		1R
J100Jiujiang		Semi
J60Guatemala-2	[3]	Quarter
J60Guatemala	[2]	2R
J100Auckland	[6]	Quarter
J60Wellington	[8]	3R
J60Christchurch	[4]	Semi

2023

J30Nonthaburi-2	[3]	Win
J30Nonthaburi	[4]	Win
J60Nonthaburi	[13]	3R
J60Dededo	[7]	2R
J60Singapore-2	[8]	1R
J30Singapore-2	[5]	2R
J30Nairobi	[2]	Quarter
J60Nairobi-2	[5]	Quarter
J60Nairobi	[5]	Semi

Nation

JPN

Generation

Born in 2007 (17-18 years old)

World Ranking

Junior World Ranking　169th

Year-end Junior World Ranking

Year-end 2024 167th
Year-end 2023 747th
Year-end 2022 1108th
Year-end 2021 1831th

Rival

Charlie Valentine (2-0)

[2025] J100ISTANBUL-3 0-6 6-4 6-4
[2024] J100SANTODOMINGO 6-1 6-4

Yannik Alvarez (1-1)

[2024] J100SANTODOMINGO-2 0-6 1-6
[2024] J100SANTODOMINGO 6-1 6-2

Erik Schinnerer (1-1)

[2025] J200SANTODOMINGO-2 4-6 6-2 3-6
[2024] J100SANTODOMINGO-2 6-3 7-5

Oluwaseun Peter Ogunsakin (1-1)

[2024] J300DURBAN 7-6 3-6 6-2
[2024] J100PRETORIA 3-6 2-6

Nathan Mansfield (1-1)

[2024] J60GUATEMALA-2 6-3 5-7 6-0
[2024] J60GUATEMALA 3-6 2-6

Match Details

2025 J300Nonthaburiclosedregionalchampionhsips

W	1R	Shanker Heisnam	6-4 6-4
L	2R	Duje Markovina	2-6 0-6

2025 J300Kuching

W	1R	Daniel Jovanovski	6-2 6-2
L	2R	Rethin Pranav Senthil Kumar	4-6 5-7

2025 J100Istanbul-3

W	1R	Aren Baybars	7-5 6-1
W	2R	Filip Kosinski	6-3 7-5
W	3R	Lucian Stefan Andrei	6-4 6-1
W	QF	Charlie Valentine	0-6 6-4 6-4
L	SF	Philipp Dolotov	3-6 3-6

2024 J300Wanju

W	1R	Sungmin Lee	6-1 7-5
W	2R	Leo Lee	6-1 6-2
L	3R	Moobeen Kim	1-6 4-6

2024 J300Durban

W	1R	Jon Gamble	7-6 7-5
W	2R	Oluwaseun Peter Ogunsakin	7-6 3-6 6-2
W	QF	Conor Brady	6-3 6-2

2024 J100Pretoria

W	1R	Kulani Shipalana	7-5 6-2
W	2R	Maksim Mihic	6-0 6-4
L	QF	Oluwaseun Peter Ogunsakin	3-6 2-6

2024 J100Johannesburg

W	1R	Boitshepo Maake	6-4 6-3
W	2R	Felipe Mamede	7-6 6-4
L	QF	Constantin Neubauer	0-6 2-6

2024 J200Sydney

W	2R	Chase Zhao	7-6 7-5
W	3R	Kai Milburn	6-4 6-3
L	QF	Cruz Hewitt	2-6 6-7

2024 J100Santodomingo-2

W	2R	Nicholas Mekhael	3-6 6-4 6-2
W	3R	Erik Schinnerer	6-3 7-5
W	QF	Jossting Cruz	2-6 7-5 6-2
W	SF	Oliver Sanders	6-1 6-2
L	F	Yannik Alvarez	0-6 1-6

2024 J100Santodomingo

W	2R	Miguel Baquero	6-1 6-0
W	3R	Jacob Lee	6-3 6-4
W	QF	Yannik Alvarez	6-1 6-2
W	SF	Charlie Valentine	6-1 6-4
L	F	Yubel Ubri	2-6 6-0 2-6

2024 J100Tlaxcala

W	2R	Jose Antonio Ribadeneira	6-3 6-2
W	3R	Jose Carlos Portillo	6-3 6-0
W	QF	Alejandro Ochoa	2-6 6-1 6-3
W	SF	Emilio Camacho	5-7 7-6 6-3
L	F	Andres Delgadillo	3-6 3-6

2024 J100Burlington

W	1R	Jacob Rouleau-Mailly	6-3 6-3
L	2R	Zavier Augustin	6-7 2-6

2024 J100Jiujiang

W	1R	Jintao Lan	6-4 6-2
W	2R	Xiuyuan Ye	6-3 6-1
W	QF	Zichen Shao	4-6 7-6 6-1
L	SF	Weiyi Kong	4-6 2-6

2024 J60Guatemala-2

W	1R	Nathan Mansfield	6-3 5-7 6-0
W	2R	Luca Iacia Laurindo	6-2 6-1
L	QF	John Patrick Popowich	0-6 0-6

2024 J60Guatemala

W	1R	Rodolfo Hernandez Gil	6-0 6-1
L	2R	Nathan Mansfield	3-6 2-6

2024 J100Auckland

W	2R	Anirudh Nallaparaju	6-3 7-6
W	3R	Jacob Kailiang Shen	6-2 6-1
L	QF	Lev Gorb	5-7 4-6

2024 J60Wellington

W	2R	Chan Min	4-6 6-1 7-5
L	3R	Finley Dyer	5-7 1-6

2024 J60Christchurch

W	2R	Bryan Dickson	6-4 6-3
W	3R	Radu Cojocaru	2-6 6-1 7-5
W	QF	Eddie Biss	6-2 3-6 6-3
L	SF	Kanata Ozaki	7-6 5-7 0-6

2023 J30Nonthaburi-2

W	2R	Ziyan Zhang	7-5 7-5
W	3R	Gyeom Do	6-1 6-2
W	QF	Kunanan Pantaratorn	6-4 6-4
W	SF	Nagamitsu Kuroda	1-6 6-1 6-1
W	F	Juchan Hwang	7-5 6-1

2023 J30Nonthaburi

W	2R	Robert Dolya	7-5 6-4
W	3R	Kunanan Pantaratorn	6-7 6-4 6-1
W	QF	Dai Khanh Nguyen	6-1 6-2
W	SF	Penn Charusorn	2-6 6-4 6-3
W	F	Kai-An Wu	6-4 7-6

2023 J60Nonthaburi

W	2R	Phopthum Sriwong	6-4 6-0
L	3R	Ke Hau Hung	4-6 6-7

2023 J60Dededo

W	1R	Andy Cajigan	6-0 6-0
L	2R	Yuya Hirose	3-6 0-6

2023 J30Singapore-2

W	1R	Teetawat Tavachphongsri	6-2 3-6 6-1
L	2R	Adavait Mantri	0-6 2-6

2023 J30Nairobi

W	1R	Ruhan Bhandari	6-1 6-0
W	2R	Svarmanyu Singh	1-6 6-0 6-2
L	QF	Mateya Stanisavljevic	6-4 2-6 4-6

2023 J60Nairobi-2

W	1R	Mateya Stanisavljevic	6-1 6-3
W	2R	Raymond Oduor	7-6 6-3
L	QF	Ching Chang Chiu	3-6 6-1 2-6

2023 J60Nairobi

W	1R	Liberty Kibue	6-2 6-1
W	2R	Claude Ishimwe	6-4 1-6 6-2
W	QF	Ching Chang Chiu	7-6 6-4
L	SF	Amine Jamji	4-6 1-6

Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 9482, Number of registered players: 4,990, Number of registered results: 217,154