Kostitsyn's hat-trick helps Predators douse Flames Sun Jan 1, 2012 9:54pm EST (Reuters) - Sergei Kostitsyn completed a hat-trick late in the third period to help the Nashville Predators withstand a late charge and beat the road-weary Calgary Flames 5-3 on Sunday. Nashville took a three-goal lead into the final period but Calgary made it close with goals from Rene Bourque and Brendan Morrison until Kostitsyn scored his third into an empty net with 30 seconds to play, handing the Flames a third straight loss. Calgary (18-17-5) is four games into a season-long seven-game road trip while the Predators (21-14-4) earned a third consecutive win. The Flames opened the scoring when captain Jarome Iginla notched his 15th goal of the season early in the first period but Nashville tied it up on a Kevin Klein goal. Matt Halischuk also scored for Nashville. Reporting by Jahmal Corner in Los Angeles; Editing by Frank Pingue