It was Boldy's second hat trick this season and sixth in the NHL.
Michael McCarron scored, and Jesper Wallstedt made 26 saves for the Wild (14-3-4), who are 8-0-2 during their point streak. Kirill Kaprizov had three assists to extend his point streak to 10 games (six goals, 12 assists).
Zack MacEwen had a goal and an assist, and Auston Matthews scored for the Maple Leafs (8-11-2), who have lost five straight. Anthony Stolarz made 21 saves.
Boldy opened the scoring at 17:53 of the first period with a snap shot from the slot off a feed from Kaprizov.
Matthews tied it 1-1 at 4:05 of the second period. He snuck behind the Wild defense fresh off the bench, took a pass from MacEwen and beat Wallstedt blocker side on a short breakaway.
MacEwen put Toronto up 2-1 at 6:59, burying a wrist shot from the left face-off circle over Wallstedt's blocker.
Boldy evened the score 2-2 with a power-play goal at 9:55. Quinn Hughes fed a pass to Boldy, who put a one-timer through traffic from above the right circle to the blocker side.
Boldy completed the hat trick to give Minnesota a 3-2 lead at 3:59 of the third period after snapping the puck glove side from the right dot.
McCarron pushed it to 4-2 at 7:34, collecting the rebound of a Blake Coleman shot and chipping the puck over Stolarz's left pad.
Danila Yurov scored an empty-net goal at 19:03 for the 5-2 final.
Wild forward Joel Eriksson Ek left the game with 11:45 remaining in the second period after colliding with Maple Leafs defenseman Jake McCabe.
