DENVER (Interstat) — Martin Necas had two goals and an assist, and the Colorado Avalanche scored four times in the second period to beat the St. Louis Blues 6-1 on Saturday at Ball Arena. Nathan MacKinnon added three assists and four shots. Cale Makar scored, while Josh Manson, Artturi Lehkonen and Nicolas Roy each had a goal and an assist. Roy and Necas scored 23 seconds apart in the second. Parker Kelly had two assists, and MacKenzie Blackwood made 25 saves. Necas finished with four shots and has two goals and two assists this season. The Avalanche led 6-0 before Dalibor Dvorsky scored for St. Louis. Colorado improved to 2-0-0; St. Louis dropped to 1-1-0. The announced attendance was 18,087. St. Louis was called for four penalties, and Colorado was called for two. The Avalanche next visit Winnipeg, while the Blues visit Chicago.