HAMILTON -- Zach Collaros threw three TD passes as the Hamilton Tiger-Cats defeated the Toronto Argonauts 34-18 on Monday night to remain unbeaten at Tim Hortons Field.

Hamilton (3-2) improved to 8-0 overall at the facility and moved into a tie with Toronto (3-2) atop the East Division standings.

Collaros delivered the decisive blow against his former team with a three-yard TD pass to Bakari Grant at 3:35 of the third to put Hamilton ahead 28-9. It came after Toronto's failed third-down gamble at its 43-yard line.

Twice Hamilton's defence stopped Toronto in third-and-short situations.

Hamilton was victorious in its home opener before a sellout of 24,135. Toronto played its fifth straight game away from Rogers Centre although its season-opening 26-11 win over the Edmonton Eskimos in Fort McMurray, Alta., was deemed a home contest.

Toronto plays its first game at Rogers Centre on Saturday night versus the Saskatchewan Roughriders. Hamilton hosts the Winnipeg Blue Bombers on Sunday in the second of three consecutive home contests following four straight on the road.

Grant had two TDs for Hamilton while Brandon Stewart and Terrence Toliver scored the others. Justin Medlock added the converts and two field goals.

Tori Gurley and Vidal Hazelton scored Toronto's touchdowns. Ronnie Pfeffer had a convert and field goal with the other points coming on a safety.

Collaros's two second-quarter TD passes staked Hamilton to a 21-9 half-time lead in a frame delayed 26 minutes due to lightning. Collaros capped a 10-play, 73-yard scoring march with a 16-yard TD pass to Grant at 1:28 before finding a streaking Toliver on a 40-yard scoring strike.

In between, Toronto quarterback Trevor Harris ended a five-play, 75-yard drive with a 19-yard TD pass to Gurley at 4:18. Action was suspended following the score, then resumed as the final 5:38 was completed with Toronto registering a safety at 13:14.

Stewart opened the scoring with a 23-yard TD run after recovering Medlock's 32-yard punt as an onside player. Toronto returner A.J. Jefferson didn't touch Stewart, who upon gathering in the ball got up and ran it in at 2:54.

NOTES -- Offensive linemen Scott Mitchell and Bruce Campbell were Toronto's scratches while receiver Terrell Sinkfield and defensive linemen Drake Nevis were inactive for Hamilton . . . Toronto has won two of the three season series against Hamilton under head coach Scott Milanovich . . . Hamilton lost running back C.J. Gable to an upper-body injury in the first half.