| 2. Round | 30/05/2021 | IFK Mariehamn | - | FC Lahti | 0:3 | ||||
| 3. Round | 10/06/2021 | FC Lahti | - | Ilves Tampere | 3:1 |  |
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| 3. Round | 15/06/2021 | Haka Valkeakoski | - | FC Lahti | 1:1 | ||||
| 3. Round | 23/06/2021 | FC Lahti | - | Helsingfors IFK | 0:0 | ||||
| 3. Round | 30/06/2021 | Inter Turku | - | FC Lahti | 1:1 | ||||
| 4. Round | 04/07/2021 | FC Lahti | - | SJK Seinäjoki | 2:1 | ||||
| 4. Round | 12/07/2021 | Helsingfors IFK | - | FC Lahti | 0:1 | ||||
| 4. Round | 16/07/2021 | FC Lahti | - | IFK Mariehamn | 1:1 | ||||
| 4. Round | 25/07/2021 | FC Honka | - | FC Lahti | 1:1 | ||||
| 4. Round | 30/07/2021 | FC Lahti | - | KTP | 3:0 | ||||
| 5. Round | 08/08/2021 | Kuopion PS | - | FC Lahti | 2:2 | ||||
| 5. Round | 13/08/2021 | FC Lahti | - | Haka Valkeakoski | 0:2 | ||||
| 5. Round | 23/08/2021 | FC Lahti | - | HJK Helsinki | 0:1 | ||||
| 6. Round | 11/09/2021 | Ilves Tampere | - | FC Lahti | 1:0 | ||||
| 6. Round | 18/09/2021 | FC Lahti | - | AC Oulu | 0:0 | ||||
| 6. Round | 22/09/2021 | KTP | - | FC Lahti | 1:2 | ||||
| 6. Round | 26/09/2021 | SJK Seinäjoki | - | FC Lahti | 4:1 |
Finland