Michael Grabner scored a short-handed breakaway goal in the second period which proved to be the difference in the Arizona Coyotes' 4-3 victory over the Nashville Predators in Game 1 of their best-of-five NHL qualifying series in Edmonton.

Michael Raffl collected a goal and an assist to lift the Philadelphia Flyers to a 4-1 victory over the Boston Bruins on Sunday in the opener of the Eastern Conference round-robin tournament in Toronto.

Nazem Kadri's buzzer-beater with one-tenth of a second remaining in the game was the difference as the Colorado Avalanche claimed a thrilling 2-1 win over the St. Louis Blues in Sunday's Western Conference round-robin clash in Edmonton.

Cam Atkinson scored early in the third period and the Columbus Blue Jackets went on to defeat the Toronto Maple Leafs 2-0 in the opener of a best-of-five qualifying series in Toronto on Sunday night.

Alex Stalock made 28 saves for the shutout victory and Jared Spurgeon collected three points as the Minnesota Wild recorded a 3-0 win over the Vancouver Canucks in Game 1 of their Western Conference qualifying round series on Sunday in Edmonton.