(CNN) -- An incident-packed final day at Cheltenham culminated in a no-less dramatic finale when outsider Lord Windermere captured the Gold Cup in heart-stopping fashion for trainer Jim Culloty and jockey Davy Russell. The 20-1 shot beat On His Own and crowd favorite The Giant Bolster on Friday to land the most prestigious prize in the British jumps racing calendar. A stewards' inquiry was immediately called after possible interference between the first two and third-placed The Giant Bolster, but the result stood to give Culloty a notable Gold Cup double as well as the £327,300 ($544,000) first prize. The Irishman, who rode Best Mate to three consecutive victories from 2002-04, became just the fourth person to triumph as both jockey and trainer.
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Jim Culloty becomes fourth person to win Cheltenham Gold Cup as jockey and trainer
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His outsider Lord Windermere, ridden by Davy Russell, triumphs after long inquiry
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Stewards rule he did not cause sufficient interference to second-placed On His Own
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Meeting's leading jockey Ruby Walsh earlier taken to hospital after a fall
Davy Russell
Davy Russell
"I'd told @placeholder to take his time but halfway round I wondered what he was doing -- I wanted to sack him!"
Gold Cup
Gold Cup
Cheltenham Gold Cup
"Everyone has said the horses haven't been right but I've only got 25 horses and 10 of those would be three-year-olds, so it's pretty impressive to have two winners here, including a @placeholder."