With the win, San Gabriel (5-5 overall, 3-2 in league) handed the Spartans (6-4, 4-1) its first league loss of the season and remained eligible for an at-large berth in the CIF Southern Section playoffs, which start on Nov. 19.
"We're unsure of what will happens with the playoffs, but we had to get the win just to have our name in the discussion," San Gabriel coach Jude Oliva said. "Our defense made some good adjustments and we finally caught some breaks tonight. But Brown's been our playmaker, the one we always count on. He played a tremendous game."
The game's outcome was up for grabs until Brown stormed downfield for an 82-yard touchdown run to give the Matadors a commanding 31-21 lead with 5:36 remaining in the game.
Brown's touchdown run complemented a Gilmar Tenes 24-yard field goal with 46 seconds remaining in the third quarter that broke a 21-21 tie.
San Gabriel added one more touchdown before the Spartans found the end zone one last time on its last possession to round out the final score.
In the first half, Brown initiated the scoring with an 11-yard touchdown run to give San Gabriel a 7-0 lead. Schurr would tie it at 7-7 when quarterback Aaron Cantu found George Lugo in the end zone for an eight-yard scoring pass.
Brown scored again for the Matadors before Schurr scored on consecutive drives to give the Spartans a 21-14 lead with 1:47 remaining before halftime.
However, it took 32 seconds for San Gabriel quarterback Eric Alvarez to complete back-to-back passes, including a touchdown-scoring 15-yard screen pass to Brown, to tie the game at 21-21 just before halftime.
"We're just waiting for the at-large announcement to see if we have the chance to play again. But I can't even explain this win. This is the first time we beat Schurr in my four years here," Brown said afterwards.
For the Spartans, Cantu threw for 118 yards on 14-of-24 passing, while running back Abraham Gonzalez rushed for 114 yards on 17 carries.
The game was delayed at the outset, when the on-field water sprinklers here at Ken Davis Field went on moments after kickoff.