Evanson made his debut for Harry Potts' Blackpool on 23 February 1974, in a 3–0 victory at Notts County. He made a further eight starts and two substitute appearances before the end of the 1973–74 campaign, at which point Blackpool lay fifth in the table.[3]
He appeared in all but five League games of the following 1974–75 season as the Seasiders finished seventh.[4]
The midfielder missed the majority of the first half of 1975–76, a start in a defeat to Bristol Rovers at Bloomfield Road on 25 October being the anomaly. From December onwards, he became a regular in the side, and made nineteen appearances by season's end. Harry Potts left his managerial seat at the seaside at the end of the season, and Evanson also departed. He made his final appearance for the club in the final game of the season, a 3–0 defeat at Luton Town on 24 April.[5] He joined American club Miami Toros during the summer.