See all the highlights from the 2017 Indy 500

Relive all of the action from the 101st running of the Indianapolis 500 with full video highlights.

It’s always the biggest event in open wheel racing in the U.S., held on the biggest day of racing overall every Memorial Day weekend. The 2016 Indy 500 was historic, but the 101st running this year promised to be just as intriguing.

Along with the current crop of IndyCar drivers, several notable names who aren’t regulars are in the field. One is Fernando Alonso, taking time away from Formula 1 to try to claim the Borg-Warner Trophy. Another is Juan Pablo Montoya, a two-time Indianapolis 500 winner who isn’t driving full time on the circuit this season.

That means just about anything could happen in front of the hundreds of thousands of fans on hand at Indianapolis Motor Speedway, including a repeat of the 50-plus lead changes in 2016. Check back often for more video highlights as we’ll update throughout the race.

Two green flags waved at the beginning of the race: one by actor Jake Gyllenhaal and the other by Boston Marathon bombing survivor Jeff Bauman.

Alonso fell back in the opening laps but moved forward once he got a feel for the track and his car, making a move on Scott Dixon.

Not long after the first round of green flag pit stops, Alonso went to the lead for the first time.

The first incident of the day was a scary one. Jay Howard hit the wall, came back across the track and collided with Scott Dixon. His car was lifted off the track and landed on the inside wall, and it’s a testament to the way the cars are built that he was relatively okay. The race was red flagged as a result of the extensive cleanup necessary.

Here’s a look at the wreck from inside Dixon’s car.

You would never know Dixon was in one of the most frightening wrecks in recent racing history as he chatted with reporters after being cleared by the medical officials.

Conor Daley brought out the next caution of the 2017 Indy 500, going hard into the outside wall. Jack Harvey spun trying to avoid debris from the incident; both drivers were okay.

Former Indy 500 winner Ryan Hunter-Reay made his way to the lead with less than 15 laps to go before the midway point of the race, but he soon saw teammate Alexander Rossi go by him. The lead swapped back to Hunter-Reay, with the thought that both cars were trying to save some fuel.

Think losing a winglet will stop three-time winner Helio Castroneves? Not at all, as he found a way to claim the lead from Hunter-Reay and Rossi.

Alonso had his third chance to lead, pacing the field after a caution, and even though Hunter-Reay passed him when the race went back green, Alonso managed to take the top spot right back.

Looking for heartbreak at Indy? How about Hunter-Reay leading the most laps and absolutely having a car that could win … and then hearing his Honda engine blow up?

Ed Carpenter found himself stuck in traffic not long after a restart and couldn’t escape trouble, losing one of his front wings in the process.

This incredible five-wide sequence brought an audible roar from the crowd in the Turn 3 stands. Fortunately, all five drivers made it through without contact.

Alonso looked to be fighting his way back toward the front with less than 25 laps to go when his engine quit without warning. The Formula 1 star retired from the race with the fastest average lap time in the field, which will be small consolation. He did receive a standing ovation from many of the fans at Indianapolis Motor Speedway when he exited his car, which was a great gesture.

A five-car incident with less than 50 miles to go took out James Hinchcliffe, among others.

Looking for his fourth Indy 500 victory, Castroneves passed Max Chilton for the lead. However he was soon passed in turn by Takuma Sato.

Though Castroneves looked for a way back around, Sato was able to hold on and even increase his lead just a tad with two laps to go, hanging on to win his first Indianapolis 500.

Sato’s previous best finish in the Indy 500 was 13th, though he memorably had a chance to win in 2012 before crashing late. Not this time, and the 40-year-old’s victory should be a popular one around the garage.

Be sure to check back with FanSided.com for a 2017 Indy 500 race recap, the complete finishing order and much more.