23 runs and 24 hits were piled up by the Wisconsin TimberRattlers and Beloit Snappers Wednesday night and it was Beloit,thanks to a five run 8th inning, that came away with a 13-10 victory in Midwest League play.   Yadiel Rivera, Chadwin Stang, Ben McMahan and Nick Ramirez all hit home runs for the Rattlers in the loss.   Milwaukee Brewers right hander Shaun Marcum made a rehab start for Wisconsin, working 3 and two thirds innings, giving up four hits and three runs, two of them earned.  Wisconsin (25-26) plays at Beloit again on Thursday night.