Players · J1 League · Koshiro Sumi
KS
Right Winger · Gamba Osaka

Koshiro Sumi

Senior debut at 16
Age 24 · Born 2002 Nationality: Japan J1 League Right Winger 166 cm Right-footed
48
ScoutChefAI score
Watch list
🟧🟧🟧🟧🟧⬜⬜⬜⬜⬜ 48/100
Playing time
21/30
Output
8/30
Age
3/20
League level
6/10
Value momentum
10/10
Transfermarkt profile ↗

Who is Koshiro Sumi?

Koshiro Sumi is a 2002-born Japanese right winger. He plays for J1 League side Gamba Osaka. In the last 12 months he has played 1823 minutes in 32 first-team matches, starting 20, with 2 goals and 1 assist. Transfermarkt values him at €600K.

J1 League: more young players → Young wingers → Young Japanese players →

Last 12 months · first-team matches

32Apps
20Starts
1823Minutes
2+1Goals + assists
Started 20 of 32 · a goal involvement every 608 minutes · debuted at 16

Last 10 matches

32'sub
23 May
81'started
30 May
120'started
6 Jun
45'started
16 Aug
91'started
26 Aug
27'sub
29 Aug
31'sub
6 Sep
75'started
12 Sep
21'1 G
15 Sep
10'sub
20 Sep

Scout notes

  • Value up more than 2x in 12 months
  • 24-year-old J1 League player

Market value

€600K
+118% in 12 months

ScoutChefAI projection · 24 months

€725K – €975K
Model output, not a guarantee.
9 Jun 2026
€600K · Júbilo Iwata
15 Dec 2025
€600K · Júbilo Iwata
26 Jun 2025
€275K · Júbilo Iwata

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