Tyler Seguin scored at 3:17 of overtime, Tim Thomas made 36 saves, and the Bruins beat the Capitals 4-3 on Sunday to tie the first-round Eastern Conference playoff series at three games apiece. The defending Stanley Cup champion Bruins never trailed, but needed a stolen pass and a deft bit of skating to finally get the decisive goal and avoid being eliminated by the seventh-seeded Capitals. Game 7 is Wednesday night in Boston.