Weight Pull
The International Weight Pull Association (IWPA) is the largest US specialty body devoted to weight pull. IWPA does not run a kennel-club registry — it runs a season. About 100 sanctioned pulls a season run across 18 regions in the US and Canada from September through March, points accrue per dog by class and surface, and the season ends in regional medals and an annual International Championships in late April or early May, rotating between western, central and eastern North America. Handlers who care about a points-and-medals season structure tend to pick IWPA. Official site: iwpa.net.