Barry Geraghty guided More Of That to the biggest win of the day as he overtook favourites Big Buck's and Annie Power to clinch the World Hurdle race on day three of the Cheltenham Festival.
The 3.20pm feature race was tipped to be a dual between Big Buck's and then-unbeaten Annie Power (11/8), who was ridden by Ruby Walsh, but More Of That (15/2) managed to cross the finish line by a length to scoop the honour.
Annie Power finished in second and At Fishers Cross (8/1) nabbed third place as Big Buck's finished fifth, which sparked trainer Paul Nicholls to announce that the horse is to be retired.
Nicholls revealed that it was not an "emotional" decision to retire Big Buck's, who will end his career as a four-time World Hurdle winner, all rides of which were with Ruby Walsh.
Before the feature race, the 2.40pm Ryaniar Chase was won by 3/1 favourite Dynaste, who was ridden by Tom Scudamore, despite the horse being off the pace at the start.
Dynaste's storming run clinched the title, while Hidden Cyclone (10/1) and Rajdhani Express (18/1) placed second and third respectively.
AP McCoy grabbed the first win of the day on Taquin Du Seuil (7/1) during the 1.30pm JLT Novices' Chase, with Uxizandre (33/1) clinching second and Double Ross (11/1) finishing third.
Fingal Bay (9/2) came out on top in the 2.05pm Pertemps Network Final, while Scudamore secured his second winner of the day by riding Ballynagour (12/1) to glory in the Byrne Group Plate.
The 4.40pm Kim Muir Challenge Cup, which was the final race of the day, was clinched by Robbie McNamara, who also rode a second winner on Spring Heeled (12/1).