Incumbent Mayor Olivia Chow commands trader consensus at 77.5% implied probability in the Toronto mayoral race ahead of the October 26, 2026 municipal election, driven by her consistent double-digit leads in recent Liaison Strategies polls, including 46% to Coun. Brad Bradford's 35% among decided voters as of April 17. Bradford, at 18.5%, has emerged as the primary challenger after officially registering on May 1 when nominations opened, capitalizing on former Mayor John Tory's March announcement ruling out a comeback. Chow's incumbency advantage and handling of key issues like transit and affordability bolster her position, though undecided voters and upcoming debates could narrow the gap in this first-past-the-post contest. Ana Bailão and others trail far behind amid a crowded field.