A performance-bred Boerboel is selected and developed for proven working ability as well as breed type. How Cold River defines it, and the results behind it.

The Boerboel weight pull record is 22,039 lb, pulled by Cold River's Sun Wukong and Cold River's Mr. Wednesday on May 9, 2026. Record history, results and sources.

Which dog breed is strongest by weight pulled? Sanctioned UPF results compared by total load and by weight per body pound, with the 22,039 lb Boerboel record.

The most weight a dog has pulled in sanctioned competition is 22,039 lb, by two Boerboels on rails at a UPF event on May 9, 2026. Results, context and sources.