A second horse has been euthanized after suffering an injury during a chuckwagon race at the annual Calgary Stampede rodeo in Alberta, Canada.

The annual Calgary Stampede features rodeo-style competitions and livestock exhibitions, including the GMC Rangeland Derby chuckwagon race. The event pits four teams of horse-drawn wagons against each other in a series of elimination races over several days. Traditionally, each team consists of four wagon horses and four horses carrying outriders. 

On July 4, a 10-year-old Thoroughbred sustained a fractured cannon bone during the sixth heat of the day’s chuckwagon race. The horse was subsequently euthanized. The Stampede’s Chuckwagon Safety Commission (CSC) ruled that the incident was the result of driver error. Layne Bremner, the horse’s owner and the driver of the wagon at the time of the incident, subsequently received a $2,500 fine.

A second chuckwagon race horse was euthanized after driver Shane Nolin’s wagon made contact with the lead horse of B.J. Carey’s team during the second head of the July 6 race, said Kurt Kadatz, the stampede’s director of community engagement and communications. The horse was severely injured in the incident and was euthanized the following day