Trainer Steve Asmussen reached 6,000 victories on his 46th birthday.
Basalt won the first race at Remington Park on Friday night for Asmussen, who is fifth on the career list. Dale Baird has the most wins with 9,445.
Asmussen is best known for training Curlin, who won Horse of the Year in 2007 and '08; and filly Rachel Alexandra, who earned the honor in 2009. He has won the Preakness Stakes twice and won the Breeders' Cup Classic in 2007 with Curlin.
Asmussen began in the sport as a jockey, but eventually outgrew the job and became a trainer in 1986, when he won his first race at Ruidoso Downs in New Mexico.