Amongst the horses he beat was Auroras Encore, the Grand National winner earlier in the month, who pulled up and dropped out on the final circuit of the race.
Ridden by Wayne Hutchinson, the seven-year-old impressed with his stamina, and beat Big Occasion by four lengths, with Mister Marker a further nine lengths adrift.
"I know this area very well and family are only an hour away," said King, born in Lanark and raised outside Hamilton. "We were lucky enough to win a Scottish Champion Hurdle last year, which was great, but this is something awfully special."
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