The matchups have been determined, and the combatants will ratchet up their quest for the Stanley Cup, with the NHL's postseason beginning on Wednesday, April 13. Here is the schedule for the 2011 Stanley Cup Playoffs Quarterfinals. 2011 EASTERN CONFERENCE QUARTERFINALS #1 seed Washington Capitals vs. #8 seed New York Rangers Wednesday, April 13 at Washington, 7:30 p.m. Friday, April 15 at Washington, 7:30 p.m. Sunday, April 17 at New York, 3:00 p.m. Wednesday, April 20 at New York, 7:00 p.m. *Saturday, April 23 at Washington, 3:00 p.m. *Monday, April 25 at New York, TBD *Wednesday, April 27 at Washington,...