Following yet another summer of high ratings, CTV has greenlit Amazing Race Canada to a fourth season.

The Insight Productions series topped the Numeris charts through the summer. It debuted in mid-July to 2 million viewers and maintained a season average audience of 2.6 million viewers. In the 25-to-54 demo, Amazing Race Canada averaged 1.1 million viewers.

The season-three finale,  airs at 9 p.m. on Wednesday, Sept. 23 will also feature a one-hour after-show special, After the Race. A three-part spinoff of the show recently premiered on Bell Fibe TV channel TV1.

Casting for the fourth season is set to begin immediately after the season three finale.