Dallas backup goalie Christopher Nilstrop stopped both Panthers attempts in the shootout. Chiasson and Benn both had beaten Florida's Jacob Markstrom.
Dallas scored twice in the second period and Florida tied it with two goals in the third.
Florida tied it on goals by Drew Shore and Scottie Upshall 14 seconds apart with less than 4 minutes remaining in the third period, beating Nilstrop. Upshall's goal was his third of the preseason.
Cody Eakin and Benn had scored 30 seconds apart for the Stars at 17:00 and 17:30 of the second period. Dallas outshot the Panthers 30-24.