Head to Head
| Brazil Campeonato Piauiense | 2021/04/25 12:00 | Flamengo PI v River AC | L | 3-2 |
| Brazil Campeonato Piauiense | 2021/02/28 12:10 | River AC v Flamengo PI | L | 0-2 |
| Brazil Campeonato Piauiense | 2020/11/17 19:00 | Flamengo PI v River AC | W | 0-1 |
| Brazil Campeonato Piauiense | 2020/02/29 20:00 | River AC v Flamengo PI | D | 0-0 |
| Brazil Campeonato Piauiense | 2019/02/27 23:00 | Flamengo PI v River AC | W | 0-2 |
| Brazil Campeonato Piauiense | 2019/02/02 20:00 | River AC v Flamengo PI | D | 1-1 |
| Brazil Campeonato Piauiense | 2018/03/11 20:04 | Flamengo PI v River AC | W | 0-1 |
| Brazil Campeonato Piauiense | 2018/02/04 20:04 | River AC v Flamengo PI | W | 3-1 |
Home History
| Brazil Copa Nordeste | 2021/10/22 00:30 | CRB v River AC | L | 2-1 |
| Brazil Copa Nordeste | 2021/10/16 19:00 | River AC v Lagarto | W | 5-0 |
| Brazil Campeonato Piauiense | 2021/05/16 12:00 | Parnahyba v River AC | D | 1-1 |
| Brazil Campeonato Piauiense | 2021/05/12 18:45 | River AC v AE Altos | L | 0-3 |
| Brazil Campeonato Piauiense | 2021/05/09 18:45 | 4 de Julho EC v River AC | D | 0-0 |
| Brazil Campeonato Piauiense | 2021/05/01 18:45 | River AC v Fluminense PI | L | 1-2 |
| Brazil Campeonato Piauiense | 2021/04/25 12:00 | Flamengo PI v River AC | L | 3-2 |
| Brazil Campeonato Piauiense | 2021/04/21 12:00 | River AC v Picos | W | 3-2 |
Away History
| Brazil Campeonato Piauiense | 2021/05/16 12:00 | 4 de Julho EC v Flamengo PI | L | 3-1 |
| Brazil Campeonato Piauiense | 2021/05/13 18:45 | Flamengo PI v Fluminense PI | L | 0-4 |
| Brazil Campeonato Piauiense | 2021/05/09 18:45 | Flamengo PI v Tiradentes PI | W | 2-1 |
| Brazil Campeonato Piauiense | 2021/05/05 18:45 | Flamengo PI v 4 de Julho EC | L | 0-1 |
| Brazil Campeonato Piauiense | 2021/05/02 18:45 | Picos v Flamengo PI | W | 0-1 |
| Brazil Campeonato Piauiense | 2021/04/28 18:45 | Flamengo PI v AE Altos | W | 4-0 |
| Brazil Campeonato Piauiense | 2021/04/25 12:00 | Flamengo PI v River AC | W | 3-2 |
| Brazil Campeonato Piauiense | 2021/04/21 19:00 | Parnahyba v Flamengo PI | L | 3-1 |