| Brazil U20 League | 2021/10/11 18:00 | Uniao Harmonia U20 v Atletico Clube Sulbrasil U20 | W | 0-6 |
| Brazil U20 League | 2021/11/15 18:30 | SC Jau U20 v Atletico Clube Sulbrasil U20 | D | 0-0 |
| Brazil U20 League | 2021/11/12 14:00 | Atletico Clube Sulbrasil U20 v Sao Gabriel U20 | W | 6-0 |
| Brazil U20 League | 2021/11/08 18:30 | SC Doze Horas U20 v Atletico Clube Sulbrasil U20 | W | 1-2 |
| Brazil U20 League | 2021/10/29 18:00 | Gremio Nacional U20 v Atletico Clube Sulbrasil U20 | W | 1-5 |
| Brazil U20 League | 2021/10/18 18:00 | Atletico Clube Sulbrasil U20 v Riopardense U20 | W | 5-0 |
| Brazil U20 League | 2021/10/11 18:00 | Uniao Harmonia U20 v Atletico Clube Sulbrasil U20 | W | 0-6 |
| Brazil U20 League | 2021/10/04 18:00 | Atletico Clube Sulbrasil U20 v SC Jau U20 | W | 2-1 |
| Brazil U20 League | 2021/09/28 18:00 | Sao Gabriel U20 v Atletico Clube Sulbrasil U20 | W | 0-1 |
| 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 |
| Brazil U20 League | 2021/10/11 18:00 | Uniao Harmonia U20 v Atletico Clube Sulbrasil U20 | L | 0-6 |
| Brazil U20 League | 2021/10/05 18:00 | Riopardense U20 v Uniao Harmonia U20 | D | 1-1 |
| Brazil U20 League | 2021/09/14 18:00 | Uniao Harmonia U20 v SC Jau U20 | L | 0-5 |