Retama Park near San Antonio had a three-way tie atop its rider standings heading into Friday.
Ted Gondron, who won last year’s title in a tie, has won 22 races this meet, as has Ernesto Valdez-Jiminez and Ivan Arellano.
Perennial leading trainer Danny Pish leads the standings with 25 wins. Ronnie Cravens III is second with 17.
The leading owner is End Zone Athletics, with 12 wins compared to six from runner-up Adriel Gonzalez.