The finale of the summer, the ORWBL World Series is a best of seven series for the Old Republic Wiffle®Ball League Championship. The first ORWBL World Series was held in 2008, after the 2007 ORWBL World Series was cancelled due to a work stoppage.

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In 2024, the New Carlisle Newts captured their record tying 4th ORWBL World Series title and first since 2016. The league's charter franchise returned to the top behind a complete team effort as this group had a great mix of veterans and youth.  The 2024 NL Cy Young Award Winner Matt Soos won all 4 games on the mound for New Carlisle while he received ample run support from the vaunted Newts lineup.  Former AL MVP Winner Tyler Shupert took home 2024 World Series MVP honors by going 22-38 at the plate with 15 HR, 20 RBI, & 20 Runs Scored.  Shupert also made World Series history becoming the first player to hit for the Cycle in his first 4 World Series At Bats, doing so in Game 1 of the World Series.  As for Mill Pond, despite falling shy they became just the 12th different franchise to play in the ORWBL World Series as this young squad put together a memorable run en route to winning the American League Pennant.