Trainer Andrew Lerner will have his final starter on Saturday at Santa Anita before disbanding his small stable.
Lerner, 32, has won 88 races since he began training in 2017 and said on Thursday that he plans to stay involved in California racing as an owner.
A leading factor in the decision to quit training was the birth of a daughter last month.
“It was a decision I thought about six or seven months ago,” he said. “We have a newborn daughter and my priorities changed.”