| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Matias•Koski |
| Used name | Matias•Koski |
| Born | 18 May 1994 in Hämeenlinna, Kanta-Häme (FIN) |
| Measurements | 195 cm / 93 kg |
| Affiliations | University of Georgia / Dynamo Swim Club, United States / Heinolan Isku |
| NOC | Finland |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2012 Summer Olympics | Swimming (Aquatics) | FIN |
Matias Koski | |||
| 200 metres Freestyle, Men (Olympic) | 31 | |||||
| 400 metres Freestyle, Men (Olympic) | 22 | |||||
| 1,500 metres Freestyle, Men (Olympic) | 27 | |||||
| 2016 Summer Olympics | Swimming (Aquatics) | FIN |
Matias Koski | |||
| 200 metres Freestyle, Men (Olympic) | 21 | |||||
| 400 metres Freestyle, Men (Olympic) | 42 |