Manteca horse training lessons boarding riding horseback breeding gymkhana barrel racing stable stallion stud mare San Joaquin Lathrop California Kristina Alexander All Star Training is a horse boarding, riding and training facility. horse boarding and training as well as beginning and advanced Western riding lessons. Our stallion, Dunmore To Impress stands at stud an impressive group of proven mares.   All Star Training in Manteca, CA.. Highway 120 and Highway 99, 20 minutes  from Modesto, Stockton Tracy.