Goals from Sanna Darboe and an own goal by a Mamakoto defender earned the beach boys a comfortable win over bitter rivals Mamakoto to bag the vital three points.
The victory earned Vidar the maximum 3 points in one game, and Mamakoto are with zero points in one outing.
In the other games played, Senior Lions beat Zuwa FC on the same score line, with goals from Lamin Secka and Omar Touray.
Junior Arms thumped Linguere 2-0 to snatch their first victory in the Bakau nawetan.
Elsewhere, Magadan drew 0-0 with Fajara Barrack to share the plunder, after regulation time failed to produce a winner.
Junior Arms and Senior Lions are with 3 points each in one game; Magadan and Fajara are with a single point in one game.
Fajara with a single point in one game will be expecting to recover in their upcoming fixtures to keep title hopes live.
Zuwa and Linguere are with zero points in one game, after losing to Senior Lions and Junior Arms in their opening fixtures.
Zuwa FC and Linguere will be hoping to win their remaining fixtures to boost their hopes of qualifying for the second round.
Meanwhile, in other scores, Olso-Bantangkoto drew goalless with Six and One.
Thus Olso-Bantagkoto and Six and One are with one point each in one game.
