Featherstone’s hopes of finishing in the top two in the Kingstone Press Championship suffered a blow with Sunday’s surprise 38-34 defeat at lowly Rochdale Hornets.
Hornets, who were given 24 points start by the bookmakers on the handicap coupon, upset the formbook in a nail-biting finish.
The defeat left Rovers 12 points adrift of leaders Leigh and just one point ahead of third-placed Halifax and two points ahead of Doncaster.
Trailing 18-0 after just 15 minutes, Featherstone recovered to lead 34-32 but Rochdale snatched victory with a late touchdown from full-back Wayne Thompson.
Rovers were level at 18-18 at half-time thanks to three tries in an eight-minute spell from Jason Crookes, Andy Kain and Steve Crossley, all converted by Gareth Moore.
Despite Will Sharp’s 51st minute score, Rochdale took a 32-22 lead in the second-half, but Rovers then looked set for victory when they hit back with tries from Etu Uaisele and Ian Hardman, plus Moore’s fifth goal, only for the Hornets to deny them at the death.