On a wet wicket at Whitley Bay, the toss was crucial and the home side won it.
They inserted Blyth who quickly had a mountain to climb. They lost four early wickets with just 16 on the board.
It took Ryan Kirkup and Colin Blackett to rescue the situation with 67 runs between them. Kirkup scored 40 and Blackett 27 as Blyth were all out for 98.
Whitley Bay passed the target for the loss of only two wickets.
On Saturday Blyth seconds travel to Ashington Rugby to play their seconds with a 1.30pm start.