The new temporary street circuit in downtown Markham introduces significant uncertainty for the August 14-16 NTT IndyCar Series event, as teams and drivers lack prior data on the 12-turn, 3.52-kilometre layout with its tight sectors and double-sided pit lane. Alex Palou’s season-long dominance as points leader and defending champion is offset by the venue’s unpredictability, which historically elevates road-course specialists like Christian Lundgaard and Scott McLaughlin while opening doors for strong qualifiers such as Pato O’Ward, Josef Newgarden, and Scott Dixon. Recent form across ovals and road courses shows tight margins among Penske, Ganassi, and Andretti entries, with no single driver pulling away on similar temporary circuits; the clustered implied probabilities reflect this parity and the potential for incidents, strategy swings, or weather to shuffle the order on an untested track.