Frank Scarpitti maintains a commanding lead in the 2026 Markham mayoral market due to his long incumbency since 2006, repeated re-election victories including 64 percent in 2022, and established profile on regional transit and local development files. Candidate nominations closed in late August with only two challengers—Martin Ross, who gained limited attention from a personal dispute over a backyard rink, and Stephen Edgell—confirming a narrow field ahead of online and in-person voting from October 16 to 26. Recent media appearances by Ross have not shifted trader consensus, which reflects the structural advantages of an experienced incumbent in a municipal contest with low-profile opposition. Late developments such as a major scandal, health event, or unexpected turnout surge among challengers’ supporters remain the primary scenarios that could alter the outcome before election night.