The visiting Vikings came away with a 50-34 win at Kinsmen Century Field.
“It was a good battle,” said Yorkton head coach Jon Muir.
Muir said the Gridders took some time to get into the game.
“The offence struggled in the first half,” he said, adding “But they figured it out” to make a game of it in the second half.
The loss leaves the Gridders with a 3-3 record headed to the playoffs. Yorkton will host a playoff game Sunday, Oct. 17 at 2 p.m. against an opponent yet to be determined.