Hiromasa Koyama

Best wins, last 12 months

KaruizawaQuarterfinal29 May

Hiromasa Koyama

Sets won: 2Set 1: 7⁷Set 2: 2Set 3: 6

Hikaru Shiraishi

Sets won: 1Set 1: 6⁰Set 2: 6Set 3: 3

HarmonQuarterfinal5 Jun

Hiromasa Koyama

Sets won: 2Set 1: 7⁸Set 2: 7⁷

Colin Sinclair

Sets won: 0Set 1: 6⁶Set 2: 6³

TaipeiRound of 3226 Aug

Hiromasa Koyama

Sets won: 2Set 1: 6³Set 2: 6Set 3: 6

Shinji Hazawa

Sets won: 1Set 1: 7⁷Set 2: 1Set 3: 2

TaipeiQualifying R217 Aug

Hiromasa Koyama

Sets won: 2Set 1: 6Set 2: 1Set 3: 10

Manish Sureshkumar

Sets won: 1Set 1: 3Set 2: 6Set 3: 5

• TKToshiki KarigyoLost the last meeting, Tanagura 20260–2
• SHShinji HazawaWon the last meeting, Taipei 20261–1
• Matthew DellavedovaLost the last meeting, Taipei 20260–2
• Yusuke TakahashiLost the last meeting, Tokyo 20260–2
• JDJake DelaneyLost the last meeting, Karuizawa 20260–2
• HSHikaru ShiraishiWon the last meeting, Karuizawa 20261–1

1 title from 1 final.

1. 2026Wuningd. Zhao Zhao