Kris Russell scored at 1:32 of overtime, Reto Berra made 42 saves in his first NHL game and the Calgary Flames defeated the Blackhawks 3-2 on Sunday night.Russell’s shot from the blue line clanked off the crossbar and past Blackhawks goalie Corey Crawford, ending Calgary’s 10-game losing streak in Chicago. The Flames won at the United Center for the first time since March 2008.Mike Cammelleri and Curtis Glencross scored in regulation for the Flames. Calgary’s T.J. Galiardi missed on a second-period penalty shot. Marian Hossa scored a power-play goal with 4:19 left in the third period to tie it at 2,which alowed the Hawks to at least get one standing point. Patrick Kane also scored for Hawks, who had won three in a row.