1m7½f (1m7f152y) Betfair Exchange Trophy (A Handicap Hurdle) (Grade 3) (GBB Race) (Class 1) (4yo+) If there’s a Grade 1 horse in this race it’s probably Buzz, the second favourite for Nicky Henderson. He boasts course form but has to defy an 11lb hike in the weights and has been outpaced over two miles…