Rugby League: Crusaders and Scorpions suffer League One defeats
Dale Bloomfield's last-gasp try secured victory for Rochdale and ended North Wales Crusaders' six-game winning run.
Crusaders trailed 10-6 at the interval but Tommy Johnson's penalty put them ahead heading into the closing stages.
But Bloomfield broke Crusaders' hearts with the try at the death at The Rock in Rhosymedre.
Rochdale are second in League One behind Keighley, who thrashed South Wales Scorpions 66-6.