The Blue Boys were winless in their last four league matches before locking horns with Serrekunda United.
Wallidan required the maximum points against Serrekunda United to increase their dreams of returning to the First Division League.
The Blue Boys battled for victory to pile pressure on teams above them on the country's Second Tier table.
Wallidan scored two goals during the match to secure a hard-fought win over Serrekunda United.
Serrekunda United netted one goal in the match, which eventually proved to be a consolation for the Serrekunda based-team.
The win have earned Wallidan fifth-place on the country's Second Tier table with 26 points.
Serrekunda United now occupy seventh-place on the Second Division League table with 24 points after seventeen league matches.