The Greenhawk Canadian Cup, Horseware Indoor Eventing andThe Ontario Toyota Dealers Royal Rodeo Headlinethe Royal Horse Show this weekend.TORONTO, Oct. 31, 2013 /CNW/ - The 91 st Royal Agricultural Winter Fair opens tomorrow, November 1st, and with it, the prestigious CSI4*-W Royal Horse Show. Opening weekend in the Royal Horse Show boasts a spectacular lineup of family entertainment and first-rate competition, as well as a very special tribute "A Salute to Those Who Serve" during Friday night's official opening ceremony. "We have multiple-time defending champions returning in both Horseware Indoor Eventing and the Greenhawk Canadian Cup," said Brian O'Leary, Chairman of the Horse Show. "Competition will be fierce, and when you throw in our British guest-riders Oliver Townend and William Fox-Pitt, it's anybody's game." Entries for the $75,000 Greenhawk Canadian Cup include ten-time Olympian Ian Millar ( Perth, ON), fellow Olympians Jill Henselwood ( Oxford Mills, ON) and Mac Cone ( King, ON), and upwards of 20 others including three-time defending Canadian Champion Yann Candele ( King City, ON). Ainsley Vince ( Burlington, ON), who has represented Canada at three World Cup Finals and is a past back-to-back Canadian Champion will also return to attempt to break Candele's winning streak. Horseware Indoor Eventing blends the skill and accuracy of show jumping with the thrill and adventure of cross-country riding. Indoor Eventing features a modified course of rugged cross-country jumps such as hedges, walls, and a bank, combined with fragile stadium jumps, whose poles and planks are designed to fall at the slightest nudge of a horse's hoof. Penalties accumulate over two nights of competition and at the end the rider with the lowest score overall is declared the Champion.