After starting the season 2-0 against non-league opponents, Lake Washington fell to Mount Si on Friday evening, going down 42-0.
The Wildcats, hosting the Kangs, had 14 points in the first quarter, followed by another 13 in the second.
Keenan McVein scored on a 9-yard pass from Ryan Atkinson, followed by a 19-yard touchdown run by Joseph Cotto.
Cameron Vanwinkle scored a 31 yard field goal, and Connor Deutsch made a 5-yard touchdown run. Vanwinkle returned with another field goal, this time from the 37-yard line to end the half.
In the third quarter, Mount Si added six points on a Tyler Button 22-yard run. In the final 12 minutes Nick Mitchell scored a 1-yard touchdown and Vanwinkle added a 49-yard field goal.
The Kangs, now 2-1 overall, will travel to Bellevue next Friday for a showdown against the 3A reigning state champions.