Koshi Osaki was born in Osaka Prefecture in 1998. He plays as a midfielder. Lineball holds stats from 25 of his games in 2026.
Official accounts listed on Wikidata.
| STRT | FC | FA | YC | RC | G | A | SHOT | SOG | OFF | |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026 J1 100 Year Vision League MITO | 16 | 9 | 4 | 1 | 0 | 0 | 0 | 16 | 1 | 0 |
| Regular Season MITO | 7 | 4 | 3 | 1 | 0 | 0 | 0 | 5 | 1 | 0 |
Includes finals, playoffs and exhibition games, so totals run higher than regular-season figures.
| Season | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 J1 LeagueMito Hollyhock | 25 | 0 | 0 | 18 | 2 | 2,258 | 1 | 0 | 0 | 25 | 3 | 11 | 5 | 1 | 46 | 0 |
| Game | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 31 Oct v Sanfrecce HiroshimaL 0-3 31 Oct | 0 | 0 | 0 | 0 | 90 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 3 | 0 |
| 25 Oct @ FC TokyoL 0-6 25 Oct | 0 | 0 | 0 | 0 | 90 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 6 | 0 |
| 17 Oct v Urawa Red DiamondsL 0-1 17 Oct | 0 | 0 | 0 | 0 | 90 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
| 19 Sept @ Yokohama F. MarinosL 0-2 19 Sept | 0 | 0 | 1 | 0 | 90 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 2 | 0 |
| 12 Sept v Kawasaki FrontaleL 0-1 12 Sept | 0 | 0 | 0 | 0 | 59 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
| 5 Sept @ Avispa FukuokaD 1-1 5 Sept | 0 | 0 | 0 | 0 | 36 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| 2 Sept v Kashima AntlersW 4-2 2 Sept | 0 | 0 | 0 | 0 | 90 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 0 |
| 8 Aug @ Kashiwa ReysolL 1-2 8 Aug | 0 | 0 | 1 | 1 | 17 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| 16 May v Tokyo Verdy 1969L 0-1 16 May | 0 | 0 | 1 | 0 | 68 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
| 9 May v Urawa Red DiamondsL 1-4 9 May | 0 | 0 | 0 | 0 | 38 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 3 | 0 |
| 6 May @ Kashima AntlersL 0-3 6 May | 0 | 0 | 0 | 0 | 90 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 3 | 0 |
| Mito Hollyhock win 3-1 on penalties @ Yokohama F. MarinosW 1-1 2 May | 0 | 0 | 1 | 0 | 120 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
| Machida Zelvia win 4-3 on penalties v Machida ZelviaL 2-2 29 Apr | 0 | 0 | 0 | 0 | 120 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 0 |
| 24 Apr @ FC TokyoL 2-5 24 Apr | 0 | 0 | 0 | 0 | 90 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 5 | 0 |
| 19 Apr v Kashiwa ReysolW 2-0 19 Apr | 0 | 0 | 2 | 0 | 90 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mito Hollyhock win 3-2 on penalties @ JEF United Ichihara-ChibaW 1-1 11 Apr | 0 | 0 | 3 | 1 | 120 | 1 | 0 | 0 | 1 | 0 | 3 | 1 | 0 | 1 | 0 |
| Mito Hollyhock win 4-2 on penalties v Kashima AntlersW 1-1 4 Apr | 0 | 0 | 1 | 0 | 120 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 0 |
| 22 Mar @ Kashiwa ReysolL 0-3 22 Mar | 0 | 0 | 1 | 0 | 90 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 3 | 0 |
| 18 Mar v Yokohama F. MarinosW 1-0 18 Mar | 0 | 0 | 2 | 0 | 90 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| FC Tokyo win 6-5 on penalties v FC TokyoL 1-1 14 Mar | 0 | 0 | 1 | 0 | 120 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
| 7 Mar @ Urawa Red DiamondsL 0-2 7 Mar | 0 | 0 | 0 | 0 | 90 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 2 | 0 |
| Kawasaki Frontale win 4-2 on penalties @ Kawasaki FrontaleL 2-2 1 Mar | 0 | 0 | 0 | 0 | 120 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 2 | 0 |
| Mito Hollyhock win 5-3 on penalties v JEF United Ichihara-ChibaW 1-1 22 Feb | 0 | 0 | 2 | 0 | 120 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
| Machida Zelvia win 4-2 on penalties @ Machida ZelviaL 2-2 14 Feb | 0 | 0 | 2 | 0 | 120 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 2 | 0 |
| 8 Feb @ Tokyo Verdy 1969L 1-3 8 Feb | 0 | 0 | 0 | 0 | 90 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 3 | 0 |
Stats from official league and public sports feeds. Updated hourly. Career and honours from Wikidata (CC0).
| Split | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AwayHome or away · won 2 of 13 | 13 | 0.0 | 0.0 | 0.7 | 0.2 | 89.5 | 0.1 | 0.0 | 0.0 | 1.0 | 0.2 | 0.6 | 0.3 | 0.1 | 2.3 | 0.0 |
| HomeHome or away · won 5 of 12 | 12 | 0.0 | 0.0 | 0.8 | 0.0 | 91.3 | 0.0 | 0.0 | 0.0 | 1.0 | 0.1 | 0.3 | 0.1 | 0.0 | 1.3 | 0.0 |
| LossesResult | 17 | 0.0 | 0.0 | 0.4 | 0.1 | 86.6 | 0.0 | 0.0 | 0.0 | 1.0 | 0.1 | 0.4 | 0.2 | 0.1 | 2.4 | 0.0 |
| WinsResult | 7 | 0.0 | 0.0 | 1.6 | 0.1 | 107 | 0.1 | 0.0 | 0.0 | 1.0 | 0.0 | 0.7 | 0.3 | 0.0 | 0.9 | 0.0 |
| DrawsResult | 1 | 0.0 | 0.0 | 0.0 | 0.0 | 36.0 | 0.0 | 0.0 | 0.0 | 1.0 | 1.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Regular seasonStage · won 7 of 25 | 25 | 0.0 | 0.0 | 0.7 | 0.1 | 90.3 | 0.0 | 0.0 | 0.0 | 1.0 | 0.1 | 0.4 | 0.2 | 0.0 | 1.8 | 0.0 |
| FC TokyoOpponent · won 0 of 3 | 3 | 0.0 | 0.0 | 0.3 | 0.0 | 100 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 0.0 | 0.3 | 0.0 | 4.0 | 0.0 |
| Kashima AntlersOpponent · won 2 of 3 | 3 | 0.0 | 0.0 | 0.3 | 0.0 | 100 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 0.7 | 0.3 | 0.0 | 2.0 | 0.0 |
| Kashiwa ReysolOpponent · won 1 of 3 | 3 | 0.0 | 0.0 | 1.3 | 0.3 | 65.7 | 0.0 | 0.0 | 0.0 | 1.0 | 0.3 | 0.0 | 0.0 | 0.3 | 1.0 | 0.0 |
| Urawa Red DiamondsOpponent · won 0 of 3 | 3 | 0.0 | 0.0 | 0.0 | 0.0 | 72.7 | 0.0 | 0.0 | 0.0 | 1.0 | 0.3 | 0.0 | 0.3 | 0.0 | 2.0 | 0.0 |
| Yokohama F. MarinosOpponent · won 2 of 3 | 3 | 0.0 | 0.0 | 1.3 | 0.0 | 100 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 0.7 | 0.0 | 0.0 | 1.0 | 0.0 |
| JEF United Ichihara-ChibaOpponent · won 2 of 2 | 2 | 0.0 | 0.0 | 2.5 | 0.5 | 120 | 0.5 | 0.0 | 0.0 | 1.0 | 0.0 | 1.5 | 0.5 | 0.0 | 1.0 | 0.0 |
| Kawasaki FrontaleOpponent · won 0 of 2 | 2 | 0.0 | 0.0 | 0.0 | 0.0 | 89.5 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 0.5 | 0.5 | 0.0 | 1.5 | 0.0 |
| Machida ZelviaOpponent · won 0 of 2 | 2 | 0.0 | 0.0 | 1.0 | 0.0 | 120 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 1.0 | 0.0 | 0.0 | 2.0 | 0.0 |
| Tokyo Verdy 1969Opponent · won 0 of 2 | 2 | 0.0 | 0.0 | 0.5 | 0.0 | 79.0 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 0.5 | 0.0 | 0.0 | 2.0 | 0.0 |
| Avispa FukuokaOpponent · won 0 of 1 | 1 | 0.0 | 0.0 | 0.0 | 0.0 | 36.0 | 0.0 | 0.0 | 0.0 | 1.0 | 1.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Sanfrecce HiroshimaOpponent · won 0 of 1 | 1 | 0.0 | 0.0 | 0.0 | 0.0 | 90.0 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.0 | 0.0 |
| K's denki Stadium MitoGround · won 4 of 8 | 8 | 0.0 | 0.0 | 1.1 | 0.0 | 95.8 | 0.0 | 0.0 | 0.0 | 1.0 | 0.1 | 0.3 | 0.1 | 0.0 | 1.1 | 0.0 |
| Kasamatsu Stadium, NakatsuGround · won 1 of 4 | 4 | 0.0 | 0.0 | 0.0 | 0.0 | 82.3 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 0.3 | 0.0 | 0.0 | 1.8 | 0.0 |
| Tokyo StadiumGround · won 0 of 3 | 3 | 0.0 | 0.0 | 0.0 | 0.0 | 90.0 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 0.0 | 0.3 | 0.0 | 4.7 | 0.0 |
| Nissan Stadium, YokohamaGround · won 1 of 2 | 2 | 0.0 | 0.0 | 1.0 | 0.0 | 105 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 1.0 | 0.0 | 0.0 | 1.5 | 0.0 |
| Sankyo Frontier Kashiwa StadiumGround · won 0 of 2 | 2 | 0.0 | 0.0 | 1.0 | 0.5 | 53.5 | 0.0 | 0.0 | 0.0 | 1.0 | 0.5 | 0.0 | 0.0 | 0.5 | 1.5 | 0.0 |
| Best Denki Stadium, Hakata-ku, FukuokaGround · won 0 of 1 | 1 | 0.0 | 0.0 | 0.0 | 0.0 | 36.0 | 0.0 | 0.0 | 0.0 | 1.0 | 1.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Fukuda Denshi Arena, ChibaGround · won 1 of 1 | 1 | 0.0 | 0.0 | 3.0 | 1.0 | 120 | 1.0 | 0.0 | 0.0 | 1.0 | 0.0 | 3.0 | 1.0 | 0.0 | 1.0 | 0.0 |
| Kashima Soccer StadiumGround · won 0 of 1 | 1 | 0.0 | 0.0 | 0.0 | 0.0 | 90.0 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 1.0 | 0.0 | 0.0 | 3.0 | 0.0 |
| Machida Gion Stadium, TokyoGround · won 0 of 1 | 1 | 0.0 | 0.0 | 2.0 | 0.0 | 120 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 2.0 | 0.0 | 0.0 | 2.0 | 0.0 |
| Saitama Stadium 2002Ground · won 0 of 1 | 1 | 0.0 | 0.0 | 0.0 | 0.0 | 90.0 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 0.0 | 1.0 | 0.0 | 2.0 | 0.0 |
| Uvance Todoroki Stadium by Fujitsu, KawasakiGround · won 0 of 1 | 1 | 0.0 | 0.0 | 0.0 | 0.0 | 120 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 0.0 | 1.0 | 0.0 | 2.0 | 0.0 |