Flyball
United Flyball League International formed in the mid-2000s as an alternative to NAFA, with a distinct rulebook, a distinct point system, and a flagship Tournament of Champions held annually. U-FLI's competitive identity centers on flexible class structure — Standard, Variety, Singles, Pairs, Pre-Flight — plus detailed online statistics and an Affinity Award Program that combines points across leagues. Many US clubs run both NAFA and U-FLI in a season; some run U-FLI only.