BY MICHAEL CUSORTELLI HOUSTON, TX—APRIL 16, 2024—Sam Houston Race Park will open its 2024 American Quarter Horse meet with a 10-race program dominated by Bank of America Racing Challenge trials. Post time for the first race, a 300-yard first-level allowance dash for sophomore fillies, is set for 6:30 p.m. (CDT) on Friday, April 19. Twenty-nine 3-year-olds are entered in three 400-yard Adequan Sam Houston Derby Challenge trials. The 10 fastest qualifiers will meet in the May 10, $40,000-added final. Lefty, a graded stakes placed son of This Is An Eagle trained by Martin Rodriguez for owner Francisco Guadalupe Guerrero, drew post 8 and will be ridden by Francisco Giles in the first heat. A $6,000 purchase at the 2022 TQHA Yearling Sale in San Antonio, Lefty is coming off of a 2-year-old campaign during which he earned $50,225 from eight races and placed third in the 350-yard, $196,000 TQHA Sires' Cup Futurity " name="twitter:description" /> BY MICHAEL CUSORTELLI HOUSTON, TX—APRIL 16, 2024—Sam Houston Race Park will open its 2024 American Quarter Horse meet with a 10-race program dominated by Bank of America Racing Challenge trials. Post time for the first race, a 300-yard first-level allowance dash for sophomore fillies, is set for 6:30 p.m. (CDT) on Friday, April 19. Twenty-nine 3-year-olds are entered in three 400-yard Adequan Sam Houston Derby Challenge trials. The 10 fastest qualifiers will meet in the May 10, $40,000-added final. Lefty, a graded stakes placed son of This Is An Eagle trained by Martin Rodriguez for owner Francisco Guadalupe Guerrero, drew post 8 and will be ridden by Francisco Giles in the first heat. A $6,000 purchase at the 2022 TQHA Yearling Sale in San Antonio, Lefty is coming off of a 2-year-old campaign during which he earned $50,225 from eight races and placed third in the 350-yard, $196,000 TQHA Sires' Cup Futurity " />