Celson Polanco struck out 11 batters to lift the Rio Grande Valley Whitewings (45-32) to a 5-1 win over the McAllen Thunder (28-50) at Harlingen Field.
Mario Mercedes racked up two RBIs on one hit for the Rio Grande Valley Whitewings. He homered in the fourth inning.
Alex Smith was charged with his third loss of the year. He lasted just seven innings, walked two, struck out two, and allowed five runs.