Schedule and 2020-21 Results
Regular Season Records: Colorado 39-13-4=82pts, St. Louis 27-20-9=63pts
Game 1 on Monday, 17 May: St. Louis loses at Colorado, 4-goals-1
Game 2 on Wednesday, 19 May: St. Louis loses at Colorado, 6-goals-3
Game 3 on Friday, 21 May: Colorado wins at St. Louis, 5-goals-1
Game 4 on Sunday, 23 May: Colorado wins at St. Louis, 5-goals-2

SERIES NOTES:

After Game 4: The Colorado Avalanche visited and defeated the St. Louis Blues 5-goals-2 to complete a 4-games-nil best-of-7 MLB/NBA/NHL playoff series 1456 victory. With the series 1456 win, the Colorado Avalanche improve their best-of-7 NHL playoff series record to 22-14 overall and 12-5 in the Preliminary round. With the series 1456 loss, the St. Louis Blues see their best-of-7 NHL playoff series record fall to 27-38 overall and 14-14 in the Preliminary round. The win order for the victorious Colorado Avalanche in series 1456 was WWWW: Series 1456 thus becomes the 35th NHL Preliminary-round series, the 122nd NHL series (all rounds), and the 239th MLB/NBA/NHL series (all rounds) to follow that win order to completion. The St. Louis Blues staved off annihilation in series 1456 Game 4 by holding an in-game lead (for the first time in series 1456) for seven minutes twelve seconds.

After Game 3: The Colorado Avalanche visited and topped the St. Louis Blues 5-goals-1 to take a best-of-7 MLB/NBA/NHL playoff series 1456 lead of 3-games-nil. When leading a best-of-7 MLB/NBA/NHL playoff series 3-games-nil, the Colorado Avalanche have a series record of 4-0 and a Game 4 record of 2-2. When trailing a best-of-7 MLB/NBA/NHL playoff series 3-games-nil, the St. Louis Blues have a series record of 0-9 and a Game 4 record of 1-8 (with an active four-Game 4 losing streak). The St. Louis Blues in series 1456 thus become the 375th MLB/NBA/NHL team and the 196th NHL team to fall behind 3-games-nil in a best-of-7 playoff series, and will strive to become the sixth MLB/NBA/NHL team and the fifth NHL team to rally from that deficit for a 4-games-3 series victory. The Colorado Avalanche have yet to trail in series 1456, and if they win series 1456 Game 4 without ever having trailed, then they will have achieved the 19th annihilation in best-of-7 NHL playoff history.

After Game 2: The Colorado Avalanche hosted and topped the St. Louis Blues 6-goals-3 to take a best-of-7 MLB/NBA/NHL playoff series 1456 lead of 2-games-nil. When leading a best-of-7 MLB/NBA/NHL playoff series 2-games-nil, the Colorado Avalanche have a series record of 13-1 and a Game 3 record of 4-10. When trailing a best-of-7 MLB/NBA/NHL playoff series 2-games-nil, the St. Louis Blues have a series record of 1-16 (with an active 13-series losing streak) and a Game 3 record of 8-9. The St. Louis Blues have yet to hold an in-game lead in series 1456.

After Game 1: The Colorado Avalanche hosted and topped the St. Louis Blues 4-goals-1 to take a best-of-7 MLB/NBA/NHL playoff series 1456 lead of 1-game-nil. When leading a best-of-7 MLB/NBA/NHL playoff series 1-game-nil, the Colorado Avalanche have a series record of 16-5 and a Game 2 record of 14-7. When trailing a best-of-7 MLB/NBA/NHL playoff series 1-game-nil, the St. Louis Blues have a series record of 7-25 and a Game 2 record of 15-17. Upon their series 1456 Game 1 loss, St. Louis now has an NHL playoffs four-Game 1 losing streak. Entering series 1456, the St. Louis Blues and Detroit Red Wings were tied for the most best-of-7 NBA/NHL Preliminary-round Game 1 wins (18 each); St. Louis had the opportunity to take sole possession of first place in that category, but failed to do so.

Pre-series assessment: In the 2020-21 NHL regular season, the Colorado Avalanche finished 19 points ahead of the St. Louis Blues. From 1939 through the 2020 NHL Finals round, when NHL teams led their best-of-7 playoff series opponents by 19 regular-season points, they have posted a best-of-7 playoff series record of 5-9 (.357) in those series against those opponents. MLB/NBA/NHL best-of-7 playoff series 1456 is the 36th best-of-7 NHL playoff series for the Colorado Avalanche, and the 65th for the St. Louis Blues. In best-of-7 NHL playoff series, the Colorado Avalanche have an all-rounds series record of 21-14, a Preliminary-round series record of 11-5, and a Game 1 record of 21-14, while the St. Louis Blues have an all-rounds series record of 27-37, a Preliminary-round series record of 14-13, and a Game 1 record of 32-32. Series 1456 is the second best-of-7 NHL playoff series meeting between the Colorado Avalanche and the St. Louis Blues. The Colorado Avalanche won the only previous meeting between the two teams (series 836, in the 2001 NHL Semifinals).