Eric Rogers and Kamar Jorden had touchdown catches for the Calgary Stampeders in a 24-14 win over the Ottawa Redblacks.
Calgary's defence was the difference, however, generating a turnover that produced the first touchdown, and twice denying Ottawa at the goal-line early in the fourth quarter.
Don Jackson ran for a touchdown and Rene Paredes kicked a 22-yard field goal for Calgary (3-0) in front of an announced 23,454 at McMahon Stadium.
Greg Ellingson had a touchdown catch for Ottawa (1-1). Kicker Lewis Ward was good from 40 and 28 yards and Richie Leone added a 63-yard punt single.
Stampeder quarterback Bo Levi Mitchell surpassed a career 20,000 passing yards in the second quarter, making him the third Stampeder quarterback to do so after Henry Burris (32,191) and Doug Flutie (20,551).
Mitchell completed 19 of 35 pass attempts for 251 yards. He threw a pair of touchdown passes and was intercepted once.