Maine is the 42nd most populated state in the United States and has a rich history of professional sports.
| Baseball | |||||
| League | Team | City | Stadium | Capacity | |
|---|---|---|---|---|---|
| EL (AA) | Portland Sea Dogs | Portland | Hadlock Field | 7,368 | |
| Basketball | |||||
| League | Team | City | Arena | Capacity | |
| G-League | Maine Celtics | Portland | Portland Exposition Building | 3,000 | |
| Ice hockey | |||||
| League | Team | City | Arena | Capacity | |
| ECHL | Maine Mariners | Portland | Cross Insurance Arena | 6,206 | |
| Soccer | |||||
| League | Team | City | Stadium | Capacity | |
| USL1 | Portland Hearts of Pine | Portland | Fitzpatrick Stadium | 5,500 | |