The Chicago Blackhawks tied their series against St. Louis in the NHL play-offs after a 3-2 win over the Blues on Friday.
Defending Stanley Cup champions the Blackhawks lost the opener of their Western Conference first-round series but recovered to tie it at 1-1 in the second game at the Scottrade Center.
Vladimir Tarasenko put the Blues ahead 15 minutes, 20 seconds into the second period but Duncan Keith struck back for the Blackhawks shortly afterwards.
A tie-breaking goal from Andrew Shaw put the Blackhawks ahead with 4:19 remaining before Artemi Panarin made sure of the result with less than 90 seconds remaining.
The Tampa Bay Lightning made it 2-0 in their Eastern Conference series against the Detroit Red Wings after securing a 5-2 victory at the Amalie Arena.
The Lightning took the lead in the first period through Nikita Kucherov but were pegged back by Dylan Larkin in the second.
Brian Boyle put the Lightning ahead three minutes later but Brad Richards managed to tie the game for the Red Wings once again early in the third period.
However, from that point on it was all Lightning, with a double from Tyler Johnson and a goal from Alex Killorn sealing the win for the home side.
Also in the East the Florida Panthers tied their series against the New York Islanders thanks to a 3-1 win at the BB&T Center.
Goals in the first and second period from Reilly Smith and Nick Bjugstad set the Panthers up for the win, with Dmitry Kulikov sealing the victory with 10 seconds left in regulation time.
Meanwhile, the Nashville Predators started their series against the Anaheim Ducks with a 3-2 triumph.