Alan King rules at Doncaster with Ziga Boy Alan King put the gloss on an unforgettable day for Alan King as Ziga Boy won the Sky Bet Chase at Doncaster. The Barbury Castle handler had already secured a brilliant treble at Cheltenham before he claimed the feature race on Town Moor. Sent on his way an 8-1 shot under Brendan Powell, Ziga Boy jousted for the lead with Aachen for a long way until the former took charge at the fourth-last. Buywise and runner-up Coologue kicked on approaching the final fence, but Powell and his companion had enough momentum to score nicely. Speaking from Cheltenham, King said: "It's marvellous and Brendan has given him a hell of a ride. "The ground is the key to this horse. Although it's pouring now, Doncaster missed the rain all week. He's progressive. "He did exactly the same in a lesser race there last time out. He went up 15lb which he needed to get in this." Powell said: "I got a great buzz out of that. "There was loads of pace. I was quick out of the gates. Thankfully he had enough early pace to get a good position. "I kept thinking we were doing a bit too much, but I told myself we had bottom weight and the way he won round here last time he'd have gained plenty of confidence from that. He saw it out well. "He was so tough down that four-furlong straight in rain, sleet and wind. "It's great to get a big winner."