Montreal racetrack closed under bankruptcy protection Horse racing tracks in Gatineau, Trois-Rivières and Quebec City allowed to remain open   Last Updated: Friday, June 27, 2008 | 9:57 AM ET Comments1Recommend0 CBC News   The company that owns Quebec's four horse racing tracks has been placed under bankruptcy protection, resulting in the immediate closure of the Hippodrome de Montréal, formerly known as Blue Bonnets Raceway.   Under the bankruptcy agreeme