A dog darted onto the track during a relay race and ended up crossing the finish line first.
The pooch, named Holly, was filmed dodging through the crowd of runners and passing leader Gracie Laney just as she is about to cross the line at a school track meet in the US state of Utah.
Laney admits that she was worried about losing the lead as she heard cheers from the crowd but did not expect a canine competitor to join proceedings.
She told KSL-TV: "I did notice that the crowd was going kind of crazy. But, you know, it was a big meet, and so I just thought there's a lot of people here."
Holly's owner explained that the dog caught a glimpse of the baton being exchanged and pulled the lead from their hand, although Laney was relaxed about the track invasion.
She said: "I honestly am just glad that we didn't get hurt. It's a fun experience."