Steven Del Duca’s position as incumbent mayor, confirmed on the ballot after nominations closed in August, underpins the market’s 98.7% implied probability for his re-election on October 26. Cross-party endorsements from Progressive Conservative MPP Stephen Lecce and federal Conservative MPs, combined with a large campaign launch and established local profile, have consolidated trader consensus around continuity. The sole certified challenger, Shelly-Ann Starlette Cerrelli, and other low-probability names like Parveen Bola have not shifted momentum despite shared focus on traffic and development issues. A late scandal, sharp turnout surge for opponents, or major policy reversal in the final ten days could still alter the outcome before voting concludes.