The Buffaloes had looked to avenge an earlier loss this week to crosstown rival East Union High.
Despite a no-hitter by Manteca High hurler Zach Todd, the Lancers managed to prevail with a 2-0 win at Agostini Field.
"We took our hats off to him," said East Union coach Carlos Herrera, praising Todd's no-no efforts.
Buffaloes coach Mark Ruiz noted that lack of execution on the field proved costly for his team.
He added: "We stung a few balls but (East Union) made some great plays."
More on that.
The Lancers (6-2, Valley Oak League) took advantage of Manteca (4-4 VOL) miscues in jumping out to an early lead.
Austin Orr reached base when his hard-hit grounder was mishandled for an infield error in the first inning. Jacob Toste followed that up by drawing a walk.
EU went with the double steal, with Orr scoring on a throwing error in an attempt to get the trail runner at second.
Ahead 1-0, the Lancers tacked on another run in the third.
Toste was plucked to lead off the inning. Miguel Guerrero was also hit by a pitch, putting two runners aboard. A pick-off attempt at second went awry, allowing Toste to score.
Manteca mounted a threat in the fourth. Emiliano Cruz walked and Jayson Ingraca was hit by a pitch.
The Lancers got out of the jam on Toste's unassisted double play at first and catcher JP Perazzo fielding a relay throw from right fielder Mateo Guerrero following Andrew Maki's single, nailing the runner at the plate.
Maki and Dylan DePrater for Manteca were credited with the only two hits of the game.
Defense was the name of the game for the Lancers.
Herrera credited Toste's play at first in the fourth as one of the key moments of keeping the Buffaloes off the scoreboard.
Orr at third and William Segura at shortstop also had some standout moments on the field.
East Union started freshman Evan Jeffery, who was the beneficiary of the solid team defense.
He went the first four innings before yielding to Segura, who pitched the final three frames for the save.