SOUTH WILLIAMSPORT, Pa. -

San Antonio McAllister Park remained unbeaten at the Little League World Series, breaking open a tight game with a six-run fourth inning Sunday in a 13-3 victory over New Castle, Ind.

Leading 3-2 in the top of the fourth, Texas took advantage of four hits, two walks and a hit batter to account for its big inning.

Landry Wideman, Seth Morrow, Carter Elliot and Mason Moore had RBIs for the San Antonio sluggers in the fourth. Jordan Cardenas added a two-run homer in the sixth. 

The Southwest champions took a 3-0 lead in the top of the first on Zachary Sanchez's two-run homer and an Indiana error. 

Indiana answered in the bottom of the inning when Hunter McCubbins clubbed a two-run homer.

McAllister Park plays again on Wednesday. They take on fellow U.S. unbeaten Goodlettsville, Tenn. at 7 p.m.