"We were lucky to get into the weights when Sir Rembrandt came out, and Jamie has ridden a perfect race. He sat quiet, which you've got to do, and he produced him perfectly."
The second and third could meet again back at Haydock in the Tommy Whittle Chase on December 4.
Venetia Williams and Sam Thomas teamed up to land a double with fancied pair Sonevafushi and Avitta.
Sonevafushi gave his four rivals in the Kingsmark Novices' Chase a lesson in jumping as the gelding romped home by 17 lengths from Bunkum, while Avitta held on after being well clear in the £ 20,000 betdirect.co.uk Mares' Only Handicap Hurdle.
Grand National-wining trainer Ginger McCain and jockey Graham Lee teamed up to take the opening Rectangle Group Novices' Hurdle with Investment Affair.
