Sport Wonderful scenes as Mammino runs brilliant race at the Valley 01/04/2025 FacebookTwitterEmail Siena embraces with coach Georgia after her sensational race at Moonee Valley. (Supplied: 469186) By Justin Schwarze Pony racing has a new rising superstar after 10-year-old Siena Mammino from Cranbourne and her pony Belle ran a brilliant […] Subscribe or Login to see the rest of the content. Username Password Remember Me Forgot Password