Plenty went right for the Mexico football team during the opening two weeks of the playoffs: first a blowout win over Wright City, then a 28-20 upset of top-seeded St. Charles West in the district semifinals.

But the good times ran out Friday night in the Class 3 District 4 championship.

Fifth-seeded Mexico went on the road to No. 2 seed Lutheran St. Charles and lost 42-14 to the Cougars, concluding the season at an even .500 record of 6-6.

Lutheran St. Charles posted at least one touchdown in each quarter and pulled away with 21 unanswered points in the second half.

Running back Bennett Cosby paced the Cougars with 125 yards rushing and two scores, while quarterback Aaron Coffey completed 8 of 12 passes for 109 yards and also ran for a TD.

Mexico quarterback Ty Prince finished 5 of 9 passing for 79 yards and an interception, adding 25 yards and a TD on the ground. Running back Michael White led the Bulldogs with 44 yards rushing, while Dante Billups carried the ball for 34 yards in the loss.

The Cougars posted 361 yards of total offense to Mexico’s 162.

Prince punched the ball in from two yards out early in the second quarter to pull the Bulldogs to within 14-7. Lutheran St. Charles responded with its third score of the game to take a 21-7 lead into halftime.

Isaiah Reams gave Mexico a jolt defensively on Lutheran St. Charles’ first drive of the second half, intercepting a Coffey pass and returning it 50 yards to the end zone to make it 21-14.

The pick-six proved to provide the final points Mexico would score this season.

Lutheran North again countered, this time delivering the knockout blow with TDs on three consecutive possessions.

The Cougars (10-2) advance to play at Trinity Catholic (8-3) on Saturday in the state quarterfinals.