Blackburn are 3/1 with Sky Bet to win promotion back to the Premier League at the first attempt.
Rovers’ 1-0 defeat by Wigan confirmed their drop back to the Championship after a miserable season at Ewood Park dominated by protests against owners Venky’s and manager Steve Kean.
The online bookmakers have also installed them as 10/1 joint 2nd favourites to win the Championship title.
Sky Bet football trader Paul Lowery said: “Fans of the Rovers will be devastated and will be hoping that their club are able to have a positive summer as they aim to get back to the Barclays Premier League.
“They may well lose most of their front line, and will have a job replacing hitman Yakubu and livewire Junior Hoillett who have been two bright sparks in a forgettable league campaign.”