Robertson scored on a breakaway with a wrist shot to end a shift of 1:37.
"I was out there for a while," Robertson said. "When the puck turns over, I didn't stop, I kept moving my feet and you just find that extra ounce of energy to go down there and, I can't lie, I love breakaways. I want a breakaway, so I find whatever energy is left to get that."
Robertson scored in overtime for a 4-3 win against Winnipeg at Dallas on Feb. 11.
"Listen, he's a natural goal-scorer," Stars coach Rick Bowness said. "He's got a great touch around the net and he loves to score. His poise with the puck and where to put it and when to put it, you can't teach those instincts that he has. You just can't, and he has those natural instincts goal-scorers have."