New England (10-12-3) is 3-1-1 since ending an eight-game losing streak. The Revolution also ended their road losing streak at five games.
Nguyen and Rowe scored in the first half off Toronto turnovers. Bunbury, the son of former Canadian international Alex Bunbury, completed the scoring in the second half.
Newly signed designated player Jermaine Jones came off the bench in the 65th minute for New England. The U.S. international slotted into central midfield, easing himself into MLS with his team comfortably ahead.
Toronto dropped to 9-9-6.
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