Keisuke Kosaka (JPN)
Country: Japan,
Born in 2011,
Category: 14 & under, Boys
Tournaments played in 2025
See detailed tennis results of Keisuke Kosaka| Oct 29 | J30B | [Q] | J30 Chigasaki \ Ai Sugiyama Cup, Chigasaki(JPN) |
| Mar 18 | J30B | [Q] | J30 JEJU \ ITF Jeju Int'L Junior Tennis Tour, Jeju(KOR) |
| Jan 20 | B14 SC | [Q] | Les Petits As - Le Mondial Lacoste, Tarbes(FRA) |
| Jan 13 | B14 C1 | [Q] | Lexus Junior International Bolton, Bolton(GBR) |
| Jan 13 | B14 C1 | 1/32 | Lexus Junior International Bolton, Bolton(GBR) |
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