Marcus Ericsson snapped a 63‑race winless streak by seizing the top step of the inaugural Ontario Honda Dealers Indy at Markham, leaping into the lead on the final five laps.
Strategic Pit Stops Turn the Tide
After relinquishing the front row position with 21 laps to go and falling to seventh, Ericsson switched to fresher alternates. The move saw him overtake Romain Grosjean for the head spot with five laps remaining, then hold firm for a 7.5305‑second triumph on the 12‑turn, 2.19‑mile temporary street circuit.
Grosjean’s Return to the Podium
Grosjean finished second, claiming his first podium since the 2023 Barber season. Andretti’s Will Power completed the podium in third, marking Andretti’s second finish in the top three for the event.
Early Action and Cautions Shape the Race
Louis Foster, starting on pole, opened the race with a one‑second edge over Christian Lundgaard and extended his lead against the front‑row trio. A flat tire for rookie Caio Collet prompted a quick pit stop, while Felix Rosenqvist’s early puncture forced an untimely switch to alternates.
Mick Schumacher’s crash on lap 14 and the subsequent caution scattered the field. Fried incidents led to multiple pit stops, including Rosenqvist’s retirement at lap 20 and David Malukas’s exit due to braking woes on lap 21.
Team Penske’s Josef Newgarden and Nolan Siegel spun in a collision on lap 63, triggering another caution that saw Ericsson continue on without pitting—fueling a later advantage that would pay off.
Key Drivers and Incidents
Rinus VeeKay pitted for a three‑stop strategy early, while Pato O’Ward and Alexander Palou managed their stint lengths. Alexander Rossi and Will Power also pitted for alternate tires at strategic points.
Race Dynamics and Final Surge
After Grosjean’s pit stop on lap 53, Ericsson stalked his rival from the rear‑wing, establishing a 6.94‑second gap by lap 66. A brief stint on fresh alternates on lap 69 allowed Ericsson to rejoin fifth, but a second‑place advantage remained intact through the final nineteen laps.
With five laps remaining, Ericsson slotted past Grosjean at Turn 9, extending his advantage before pulling clear. The finishing margin of 7.5305 seconds was the largest by lap 12 in the event’s history.
Implications for the Season
Ericsson’s victory marks his fifth career IndyCar win and underlines Andretti’s consistent front‑row performances, despite occasional missteps. The race showcases the importance of strategic tire use and caution management on temporary street circuits.

