Compete in all 4 and receive...

Tournament Discounts

National WIFFLE® Grand Slam Champions:

2021 Event Dates

Hometown Cup:  July 23-25, New Carlisle, IN

GSWL Yard Open:  TBA, Staten Island, NY

NWLA Tournament:  September 17-19, Indianapolis, IN

United Wiffleball:  TBA, York, PA

Tournament Registration Links

Register for all four events before July 15th deadline to receive tournament discounts.

Grand Slam Memorabilia 

Name in the history books!

National WIFFLE® Grand Slam Participants:

WIFFLE® is a registered trademark owned by

The Wiffle Ball, Inc. and used under license.