A three year old colt named "Uncrowned King" has died after suffering an injury at Del Mar.
The horse was injured in Saturday's seventh race. The jockey was thrown from the colt, but wasn't seriously injured.
This is the track's first horse racing death of the year. Five horses died from racing or training injuries at Del Mar last year, according to the state's horse racing board.
Uncrowned King had just two races in his career including Saturday.
Track spokesman Mac McBride confirmed that Uncrowned King "was humanely euthanized due to injuries suffered racing."