Mr. Hinx, who was pulled up with a leg injury after finishing second in Friday's $200,345 Damascus Stakes, will undergo an operation to stabilize a condylar fracture in a foreleg, owner Gary Barber said.
Mr. Hinx was pulled up while galloping out. Sent off as the 8-5 favorite, Mr. Hinx finished second by 2 1-4 lengths to Americanize ($12).
Barber is co-owner of Belvoir Bay, who won Friday's final race at Del Mar, the Grade 3 Sen. Ken Maddy Stakes.
"I bred that horse and it's hurtful," Barber said of Mr. Hinx. "This game takes you to the highs and the lows."
Mr. Hinx, a 3-year-old gelding by Ministers Wild Cat, has won 5 of 11 starts and earned $438,548. He won two sprint stakes earlier this year for California-breds - the Echo Eddie Stakes at Santa Anita in April and the Real Good Deal Stakes at Del Mar in August. Mr. Hinx was second in the Grade 1 Santa Anita Sprint Championship on Oct. 7.