2025 Indianapolis 500

The 2025 Indianapolis 500 (branded as the 109th Running of the Indianapolis 500 presented by Gainbridge for sponsorship reasons) was an IndyCar Series race that was held on Sunday, May 25, 2025, at the Indianapolis Motor Speedway in Speedway, Indiana. The race was round six of the 2025 NTT IndyCar Series season. The month of May activities formally began with the Sonsio Grand Prix on the combined road course. The race was televised on Fox for the first time in its history. The 2025 race marked the first year of hybrid energy recovery system powertrains at Indianapolis.

Practice officially began on Tuesday, May 13, and Time Trials were held on May 17–18. Carb Day, the traditional final day of practice, along with the Pit Stop Challenge, took place on May 23. Rookie driver Robert Shwartzman of Prema Racing qualified for the pole position, the first rookie pole winner since Teo Fabi in 1983.

Three-time series champion Álex Palou of Chip Ganassi Racing won the race, his first Indianapolis 500 victory and first oval-track victory in IndyCar. It marked Ganassi's 6th Indy 500 victory, tied for second most all-time. It was Palou's sixth start at Indy, his best previous finish was a second in 2021. Palou took the lead on lap 187, and held off 2022 winner Marcus Ericsson of Andretti Global. Second place Ericsson, his teammate Kyle Kirkwood (6th), and Callum Ilott (12th) all failed post-race technical inspection, and were moved to the back of the field when official results were posted. Consequently, David Malukas was elevated to second place and Pato O'Ward to third. Palou's win highlighted a dominating season in which he won eight races and became the first driver to win the Indianapolis 500 and the IndyCar championship in the same season since Dario Franchitti in 2010.

Josef Newgarden, the race winner in 2023–2024, failed to accomplish the first Indianapolis 500 three-peat. Newgarden and Penske teammate Will Power were moved to the back of the starting grid due to technical infractions during qualifying. All three cars of the Penske team had disappointing results, the team's worst overall performance at Indy since failing to qualify in 1995. Power finished a lap down in 16th, Newgarden dropped out with mechanical failure, and Scott McLaughlin crashed out on the pace lap (after also crashing heavily during practice). Statistically, it was the team's worst combined three-car result at Indy since 1992.

Kyle Larson made his second attempt at "Double Duty" after failing in 2024, as that year's Coca-Cola 600 was called for rain. He crashed out at Indianapolis on lap 92. Larson would lead 34 laps early on at Charlotte, but dropped out after a crash. At season's end, Larson won the 2025 Cup Series Championship – the first time in history that a driver raced in the "500" and won the NASCAR championship in the same calendar year. Polesitter Robert Shwartzman led 8 laps, but dropped out on lap 87 after skidding into the wall entering the pits. He still was voted rookie of the year. Two-time winner Takuma Sato led the most laps, but lost the lead when he overshot his pit stall. He battled back to place 9th.