Horse racing: Samantha Wynne overcomes fall, rides Pivotal Ten in $3.5m race / Will California ever approve Historical Horse Racing machines to help save the sport? / Horse racing: Hinekaha all class in Oaks Prelude win at New Plymouth / Horse racing: Local runner Herbert takes victory in New Plymouth feature / Horse racing: Donna versus Goliath in Westbury Classic at Ellerslie / Horse racing: Ken Kelso eyes Group 1 win with Alabama Lass in Sistema Railway / Horse racing: Dealt With dances to Millions with drama-filled victory / Horse racing is set for a resurgence, even as America's oldest track closes / Horse racing: Oscar Bonavena and Muscle Mountain to continue long-running rivalry / Horse racing: Orchestral exhibition a likely pointer