(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
"I'd told @placeholder to take his time but halfway round I wondered what he was doing -- I wanted to sack him!"
"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."