Rantanen's goal at 10:58 of the second period gave Colorado a 1-0 lead when a 2-on-1 ensued after St. Louis dumped a puck behind the Avalanche goal and had three skaters caught behind the net. Rantanen beat Binnington with a wrist shot high on the short side from the right circle.
Tarasenko tied it 1-1 with a power-play goal at 8:01 of the third, a shot from a sharp angle near the goal line after a pass from Ryan O'Reilly with Makar in the penalty box, a double minor for high-sticking.
The Blues penalty kill, which came in ranked last in the NHL, was 3-for-3 in the game with a short-handed goal.
"I thought we did a better job of committing to the kill and being tighter and just overall, as a team group, not getting too extended out there," Saad said. "So, it was a better job for that aspect. So, that's a positive, but like I said, we've got to keep moving forward and improving."
NOTES: Rantanen has five hat tricks and 25 multigoal games in the NHL. … Makar has 20 points (five goals, 15 assists) in 16 games against St. Louis. ... Colorado forward Artturi Lehkonen played 20:20 after missing the previous three games with a concussion. ... O'Reilly has 31 points (nine goals, 22 assists) in 26 games against the Avalanche, and four points (two goals, two assists) in a three-game point streak. ... Blues defenseman Torey Krug played 20:53 after missing the previous two games with an upper-body injury. ... Berube coached his 300th NHL game with St. Louis, joining Joel Quenneville (593), Ken Hitchcock (363) and Brian Sutter (320). ... Blues forward Noel Acciari had a Blues-high six hits and won 11 of 12 face-offs (92 percent) in 15:50.