DALLAS - Alex Chiasson broke a third-period tie with his first goal in 13 games, and Lindy Ruff earned his 600th NHL coaching victory with a 3-2 win over his former team, the Buffalo Sabres, on Monday night.
Jamie Benn's slap shot from the blue line deflected off Chiasson and past goalie Jhonas Enroth for a power-play goal at 10:25 of the third.
The Stars opened a two-point lead over their closest pursuers for eighth place in the Western Conference. Ruff posted his first 571 wins with the Sabres before joining the Stars.
Defencemen Jordie Benn and Alex Goligoski both scored their third goal of the season for the Stars, who overcame a 1-0 deficit. Benn had been scoreless for 11 games, and Goligoski had gone 48 without a goal.
Tyler Ennis scored twice for Buffalo, with Matt Moulson assisting on both goals. The second got the Sabres even at 3:23 of the third.