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Kokoro Isomura

22 year old

Japan

22 Jan 2003

2025 - 2024 - 2023 - 2022 - 2021

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2025

2024

2023

2022

2021

Kokoro Isomura

34 - 31win/loss

Hard

32-29

52%

I Hard

2-2

50%

Next Tournaments

Playford Challenger

Hard

Karan Singh

K.Singh
IND Loss
5-7 6-4 6-3

1^st
25 Nov 25

L

Yokohama Challenger

Hard

Yusuke Kusuhara

Y.Kusuhara
JPN Loss
7-5 6-3

1^st
17 Nov 25

L

Kobe Challenger

I.hard

Sho Shimabukuro

S.Shimabukuro
JPN Loss
7-6¹ 6-4

1^st
12 Nov 25

L

Matsuyama Challenger

Hard

Henrique Rocha

H.Rocha
POR Loss
5-7 6-4 6-1

1^st
03 Nov 25

L

Seoul Challenger

Hard

Elias Ymer

E.Ymer
SWE Loss
6-2 6-3

2^nd
30 Oct 25

L

Yosuke Watanuki

Y.Watanuki
JPN
5-2 ret.

1^st
28 Oct 25

W

Yusuke Takahashi

Y.Takahashi
JPN
6-2 6-4

Q.
27 Oct 25

W

Dong Ju Kim

D.Kim
KOR
6-4 6-3

q1
26 Oct 25

W

Suzhou Challenger

Hard

Naoki Tajima

N.Tajima
JPN Loss
6-3 6-4

q1
19 Oct 25

L

M25 Takasaki

Hard

Kaichi Uchida

K.Uchida
JPN Loss
6-2 6-2

1/4
19 Sep 25

L

Yuta Tomida

Y.Tomida
JPN
6-3 6-1

2^nd
18 Sep 25

W

Hayato Matsuoka

H.Matsuoka
JPN
7-5 3-6 6-4

1^st
16 Sep 25

W

M25 Sapporo

Hard

Mark Whitehouse

M.Whitehouse
GBR Loss
7-5 7-5

2^nd
11 Sep 25

L

Taisei Ichikawa

T.Ichikawa
JPN
6-2 6-1

1^st
09 Sep 25

W

Shanghai Challenger

Hard

Renta Tokuda

R.Tokuda
JPN Loss
6-0 6-2

1^st
02 Sep 25

L

Petr Bar Biryukov

P.Biryukov
RUS
7-6³ 7-5

Q.
01 Sep 25

W

Ajeet Rai

A.Rai
NZL
7-6⁴ 7-6⁶

q1
31 Aug 25

W

Zhangjiagang Challenger

Hard

Oliver Crawford

O.Crawford
USA Loss
7-6¹ 6-0

1/2
30 Aug 25

L

Sanhui Shin

S.Shin
KOR
2-6 6-2 6-4

1/4
29 Aug 25

W

Jie Cui

J.Cui
CHN
3-6 6-2 7-6⁹

2^nd
27 Aug 25

W

Sergey Fomin

S.Fomin
UZB
6-3 6-2

1^st
26 Aug 25

W

M25 Bali

Hard

Sidharth Rawat

S.Rawat
IND Loss
4-6 6-3 6-4

1^st
12 Aug 25

L

M25 Bali

Hard

Yurii Dzhavakian

Y.Dzhavakian
UKR Loss
6-1 6-3

2^nd
07 Aug 25

L

Anthony Susanto

A.Susanto
INA
6-2 7-5

1^st
06 Aug 25

W

Astana Challenger

Hard

Aleksandre Bakshi

A.Bakshi
GEO Loss
6-1 6-7² 6-3

1^st
28 Jul 25

L

M15 Tokyo

Hard

Shintaro Imai

S.Imai
JPN Loss
6-4 6-7⁵ 6-4

1/2
12 Jul 25

L

Colin Sinclair

C.Sinclair
AUS
6-3 4-6 6-4

1/4
11 Jul 25

W

Yuta Tomida

Y.Tomida
JPN
7-5 6-3

2^nd
10 Jul 25

W

Ryotaro Matsumura

R.Matsumura
JPN
6-7⁴ 6-4 6-3

1^st
08 Jul 25

W

M15 Tokyo

Hard

Jangjun Kim

J.Kim
KOR Loss
4-6 6-4 7-6⁴

1^st
02 Jul 25

L

M15 Maanshan

I.hard

Colin Sinclair

C.Sinclair
AUS Loss
6-3 6-7⁶ 6-3

1/4
27 Jun 25

L

Taisei Ichikawa

T.Ichikawa
JPN
6-4 6-4

2^nd
26 Jun 25

W

Sheng Tang

S.Tang
CHN
6-3 6-4

1^st
25 Jun 25

W

M25 Luzhou

Hard

Evan Zhu

E.Zhu
USA Loss
7-6⁵ 7-6³

2^nd
19 Jun 25

L

Rigele Te

R.Te
CHN
6-1 7-5

1^st
17 Jun 25

W

M15 Luan

Hard

Wishaya Trongcharoenchaikul

W.Trongcharoenchaikul
THA Loss
6-2 7-5

2^nd
12 Jun 25

L

Xirui Han

X.Han
CHN
6-4 6-2

1^st
11 Jun 25

W

M25 Changwon

Hard

Hoyoung Roh

H.Roh
KOR Loss
7-5 6-1

1^st
04 Jun 25

L

M15 Luan

Hard

Linang Xiao

L.Xiao
CHN Loss
7-6⁶ 6-1

Fin.
25 May 25

L

Tianhui Zhang

T.Zhang
CHN
7-6² 6-0

1/2
24 May 25

W

Saki Tange

S.Tange
JPN
6-1 6-0

1/4
23 May 25

W

Xirui Han

X.Han
CHN
2-6 6-1 6-3

2^nd
22 May 25

W

Xing Dao Chen

X.Chen
CHN
6-2 6-1

1^st
20 May 25

W

M15 Luan

Hard

Taiyo Yamanaka

T.Yamanaka
JPN Loss
5-7 6-4 6-4

2^nd
15 May 25

L

Jack Bruce-Smith

J.Bruce-Smith
AUS
7-6⁸ 6-4

1^st
14 May 25

W

M15 Osaka

Hard

Yusuke Kusuhara

Y.Kusuhara
JPN Loss
6-3 6-2

2^nd
24 Apr 25

L

Oliver Anderson

O.Anderson
AUS
7-6³ 6-2

1^st
22 Apr 25

W

M15 Osaka

Hard

Yusuke Kusuhara

Y.Kusuhara
JPN Loss
6-4 6-1

2^nd
17 Apr 25

L

Kentaro Otsuka

K.Otsuka
JPN
6-2 6-1

1^st
16 Apr 25

W

M15 Kashiwa

Hard

Taiyo Yamanaka

T.Yamanaka
JPN Loss
7-5 6-1

2^nd
04 Apr 25

L

Shion Itsusaki

S.Itsusaki
JPN
6-4 4-6 6-1

1^st
01 Apr 25

W

M15 Tsukuba

Hard

Yu Tanaka

Y.Tanaka
JPN Loss
7-6⁷ 7-6⁵

1^st
25 Mar 25

L

M25 Shenzhen

Hard

Shintaro Imai

S.Imai
JPN Loss
6-2 6-7⁵ 6-4

1^st
18 Mar 25

L

M25 Luan

Hard

Hyeon Chung

H.Chung
KOR Loss
7-5 1-6 6-4

2^nd
13 Mar 25

L

Xirui Han

X.Han
CHN
6-4 4-6 6-1

1^st
12 Mar 25

W

Bengaluru Challenger

Hard

Ilia Simakin

I.Simakin
RUS Loss
6-1 6-1

Q.
24 Feb 25

L

Adil Kalyanpur

A.Kalyanpur
IND
7-6² 6-0

q1
23 Feb 25

W

Brisbane 1 Challenger

Hard

Shinji Hazawa

S.Hazawa
JPN Loss
6-4 1-0 ret.

1^st
28 Jan 25

L

Colin Sinclair

C.Sinclair
AUS
6-4 6-4

Q.
27 Jan 25

W

Corban Crowther

C.Crowther
NZL
4-6 6-3 6-4

q1
26 Jan 25

W

Nonthaburi 2 Challenger

Hard

Yu Hsiou Hsu

Y.Hsu
TPE Loss
6-2 6-1

1^st
07 Jan 25

L

Naoki Nakagawa

N.Nakagawa
JPN
6-0 7-5

Q.
06 Jan 25

W

Natthayut Nithithananont

N.Nithithananont
THA
6-2 6-1

q1
05 Jan 25

W

Nonthaburi 1 Challenger

Hard

Clement Tabur

C.Tabur
FRA Loss
6-2 6-1

Q.
30 Dec 24

L

Thanaphat Boosarawongse

T.Boosarawongse
THA
6-3 7-5

q1
29 Dec 24

W

Career Titles - 0

Year	Sum.	Hard	Clay	I.hard	Grass	Carpet
2025	34-31	32-29	0-0	2-2	0-0	0-0
2024	39-25	27-18	6-4	6-3	0-0	0-0
2023	25-30	25-29	0-1	0-0	0-0	0-0
2022	24-16	7-9	17-7	0-0	0-0	0-0
2021	6-8	4-2	2-6	0-0	0-0	0-0
Total	128-110	95-87	25-18	8-5	0-0	0-0

Ranking History