The open mayoral seat in Guelph, following incumbent Cam Guthrie’s decision not to seek a fourth term, has produced a competitive race centered on two sitting city councillors. Leanne Caron and Ken Yee Chew hold the highest implied probabilities in the market, reflecting their established local profiles, council experience, and early entry into the contest. The remaining four candidates trail significantly, consistent with limited name recognition and shorter political records. With nominations closed and early voting approaching in October, the tight spread between the frontrunners stems from comparable voter bases and the absence of major differentiating events or polling data. Developments such as candidate debates, endorsements, or shifts in local issues like housing and taxes could widen the gap before election day.