Milwaukee delivered two IndyCar races Sunday, but only one winner.

Pato O’Ward turned a rain-scrambled doubleheader into an Arrow McLaren showcase, winning the regularly scheduled Race 2 before completing the sweep in Saturday’s suspended Race 1. Somehow, running 410 competitive laps in one day wasn’t enough drama—the afternoon also ended with Alex Palou officially collecting his fifth IndyCar championship.

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Race 2 ran first after continued track-drying delays pushed the conclusion of Race 1 into Sunday evening. O’Ward overcame a costly early pit stop before his crew delivered a blistering 6.6-second final service. That stop moved the No. 5 Chevrolet ahead of Scott McLaughlin, and O’Ward took control for good on Lap 196.

Navigating heavy traffic, O’Ward held off McLaughlin by 0.7916 seconds. Christian Lundgaard finished third, giving Arrow McLaren two podium cars and Chevrolet a sweep of the top four with David Malukas fourth. Palou led a race-high 115 laps but faded to fifth, while Kyle Kirkwood charged from 24th to sixth and temporarily kept the championship fight alive.

Then came the strangest encore imaginable.

Race 1 resumed following a red-flag interruption of 25 hours and 40 minutes. O’Ward had been leading when rain stopped the race after 90 laps Saturday, but Malukas emerged as his biggest threat once competition resumed.

A late caution set up the defining restart on Lap 226. Malukas, O’Ward and McLaughlin went three-wide for the lead, and O’Ward attacked the inside instead of settling for a safe finish. He cleared Malukas and drove away to a 1.7535-second victory.

Rinus VeeKay grabbed third from McLaughlin with three laps remaining, while Christian Rasmussen completed the top five. The sweep gave O’Ward his 12th career victory and third win of 2026. More impressively, he became the first IndyCar driver since Rick Mears in 1981 to win two races on the same day.

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Palou finished 10th—hardly a championship celebration drive—but it was enough. The Chip Ganassi Racing star clinched his fifth title in six seasons and fourth consecutive championship, matching Sébastien Bourdais’ modern-era streak.

O’Ward owned Milwaukee. Palou owned the season. On one exhausting, historic Sunday, IndyCar got both statements at once.