Brian Duff and his running companion, Kaydom, are a record-breaking duo after setting what’s considered to be a new world best in the dog mile in Santa Barbara, Calif. on June 5. The two ran a 4:13 mile, which broke the previous known best of 4:15.

RELATED: Pacer, the “hero” dog, saves B.C. trail runner from bear attack.

The race is known as the Platinum Performance Dog Mile and was run as part of the Hoka One One State Street Mile. The event is considered the “unofficial world championships” for human-dog racing.

Duff and Kaydom finished second at last year’s event.

ADVERTISEMENT

The women’s human-dog race was won by Mary Jones and Nala in 5:17. There were 69 human-dog teams as part of the event, which also featured an open road mile (1.609 kilometres).

RELATED: Five tips for running with your dog in the summer.

Kaydom is a weimaraner. Male weimaraners typically weigh 71-82 pounds while females weigh between 55 to 71 pounds. The breed has lots of energy and are very good runners. The previous men’s human-dog record of 4:15 by Josh Helton and his dog Bro, a pitbull and lab mix, stood since last year’s event.

RELATED: Adorable surprise racer finishes at the Elkmont Half-Marathon in Alabama.

Another highlight of the event was a runner posing as legendary runner Steve Prefontaine, which can be seen below.