Batherson, 23, skated in all 56 of the Senators’ games last season, ranking second on the team with 17 goals and adding 17 assists before becoming a restricted free agent.
“Drake represents an integral component of our future at forward,” Senators general manager Pierre Dorion said in a statement. “Dating to his first pro season, he has steadily progressed to the point where he is now widely recognized as a bonafide top line NHL winger. He possesses a strong ability to play at both ends of the ice, is a key powerplay contributor and someone we expect to be a prominent player for us for several years to come.”
Batherson will make $2.5 million in 2021-22, with his salary peaking at $6.55 million in the final year of the deal in 2026-27.