T. Koukkumäki — Borussia M'bach U19, U19 Bundesliga. Season statistics and career record.
| Season | Club | Competition | Apps | Minutes | Goals | Assists | Yellow | Red |
|---|---|---|---|---|---|---|---|---|
| 2024 | Borussia M'bach U19 | U19 Bundesliga | 23 | 1,417 | 3 | 0 | 5 | 0 |
| 2024 | Borussia M'bach U19 | DFB Junioren Pokal | 2 | 72 | 0 | 0 | 1 | 0 |
| 2024 | Finland U17 | UEFA U17 Championship - Qualification | 6 | 471 | 2 | 0 | 0 | 0 |