The Spartans were able to hold on, beating the Padres 29-28.
Serra was on the move, but De La Salle stuffed them on 4th-and-1 and got the ball back with 2:43 to go.
The Spartans went up 29-28 with 4:30 to play after Quarterback Blake Wayne scored a touchdown on a 5-yard run. De La Salle was playing for the 28-all tie when the PAT attempt broke down and Terron Ward managed to run in a 2-point conversion.
The Spartans were up 21-7 at halftime, but Serra scored twice in the third quarter to tie it at 21.
The Padres Cody Jackson made it 21-14 on a 5-yard run with 6:10 to go in the third and minutes later a 9-yard run by Alex Bravo tied it at 21.
Serra quarterback Cody Jackson hit wide receiver Patrick Bowler on a 25-yard pass to put the Padres up 28-21 with 11:15 to go in the game.
The Spartans headed to the locker room moments ago with a 21-7 lead over the host Padres.
After two quarters, De La Salle quarterback Blake Wayne is 10-for-12 with 99 yards passing and two rushing touchdowns.
The Spartans scored on each of its first three possessions. Wayne scored on a 16-yard run to put the Spartans on the board 7-0.
Spartan running back Kylan Butler found the endzone with a 1-yard run to go up 14-0 with 1:56 left in the first quarter. Butler finished the first half with 12 carries for 100 yards.
Wayne scored again on a 1-yard run that made it 21-0 with 7:48 to go in the half.
Serra got on the board with 3:40 left in the second quarter on a 1-yard run by Jerad Braun making it 21-7.
The Padres had one more scoring attempt at the end of the half, but kicker Greg Guttas missed a 44-yard field goal.