Long Run edges King George

15/8 favourite Long Run registered a remarkable victory in the William Hill King George VI Chase at Kempton.

Sam Waley-Cohen looked set for a comfortable win aboard Nicky Henderson's charge when setting sail for home after the third last but the seven-year-old began to wander in front.

Seeing an opportunity, Richard Johnson conjured a sustained charge from Captain Chris and when more fluent than his rival at the last, he jumped to the front.

However Long Run was galvanised for another effort and he was back in front two strides from the post. Grands Crus (7/1) was back in third.

The winning rider said: "He was so brave, we wanted to take the sting out of everything else and I asked so much, but he was so brave. That was racing at its best to my mind, that's why we do it. I can't put it into words - it's an honour and a pleasure."

Sky Bet left the winner unchanged at 7/1 for the Cheltenham Gold Cup.