| Brazil U20 League | 2021/11/26 14:00 | SC Doze Horas U20 v Uniao Harmonia U20 | L | 7-1 |
| Brazil U20 League | 2021/11/22 14:00 | Uniao Harmonia U20 v Gremio Nacional U20 | L | 1-2 |
| Brazil U20 League | 2021/11/19 18:30 | Atletico Clube Sulbrasil U20 v Uniao Harmonia U20 | L | 2-0 |
| Brazil U20 League | 2021/11/15 14:00 | Uniao Harmonia U20 v Riopardense U20 | W | 2-0 |
| Brazil U20 League | 2021/11/06 16:00 | SC Jau U20 v Uniao Harmonia U20 | L | 3-2 |
| Brazil U20 League | 2021/11/03 18:00 | Sao Gabriel U20 v Uniao Harmonia U20 | L | 6-2 |
| Brazil U20 League | 2021/10/26 18:00 | Uniao Harmonia U20 v SC Doze Horas U20 | L | 0-1 |
| Brazil U20 League | 2021/10/15 18:00 | Gremio Nacional U20 v Uniao Harmonia U20 | W | 0-2 |