The Hamilton Tiger-Cats quarterback completed 27 of 30 passes in a 39-24 victory over the Montreal Alouettes.
That tied him with Jason Maas for the fifth best single-game mark in completion percentage (90 per cent) in CFL history, and for the highest completion percentage in history with at least 30 attempts.
He wasn't the only Ticats player honoured for Week 4. Wide receiver Andy Fantuz was named top Canadian for his game-high 135 yards and one touchdown on eight receptions.
Meanwhile, Joe Burnett of the Eskimos claimed defensive honours. The cornerback/kick returner registered three tackles and picked off Lions quarterback Travis Lulay twice, including a 108-yard return for a touchdown in the fourth quarter of Edmonton's 27-14 win over B.C.
The special teams nod went to Winnipeg Blue Bombers kicker Justin Palardy, who was a perfect five-for-five on field goal attempts in the Bombers' 25-22 loss to the Toronto Argonauts.