The Inland Valley Pirates (7-8-1) lost 7-5 to the Colton Nighthawks Tuesday night at Cal Poly Pomona.
Andre Henson got the start for the Pirates. The left hander went four innings, allowed six hits, and four earned runs.
Ryan Whithorn led the Inland Valley offense going 2-2 with a run scored.
The Pirates have now lost a season high four straight.
Inland Valley returns to league play on Tuesday visiting the Solana Beach Cardinals.