Spokesperson for William Hill, Lee Phelps, said: "We’ve reported how popular Kopeck De Mee has been for Cheltenham already, but now the handicap marks are out, the money just won’t stop coming.
"He’s also 5-1 from 6-1 for the William Hill County Hurdle, and should he go there, Martin Pipe backers since January 1st will get their money back thanks to our Non-Runner Money Back concession.".
Kopeck De Mee, who hasn't raced since May last year, is also 5-1 fav for the Coral Cup Handicap Hurdle.
Prior to being humbled by Kopeck De Mee, Karam Le Rouge beat current Mullins horse Kitzbuhel by a length, giving him 4lbs.
BOOKIES say 'the money just won't stop coming' for a Willie Mullins horse who is favourite for three Cheltenham Festival races.