Sonsio Grand Prix

From 2014 to 2016, the race was known as the Grand Prix of Indianapolis. From 2015 to 2016 it was sponsored by Angie's List. For 2017, the Angie's List title sponsorship was dropped and the race was renamed the IndyCar Grand Prix, in part to reduce confusion with the former Formula One United States Grand Prix previously held at the same venue.

The modern FIA Grade One infield road course had opened in 2000 and was initially used for the United States Grand Prix from 2000 to 2007, then for Moto GP and Grand Am events. The infield road course layout was originally designed in 1992 by Kevin Forbes during the reconstruction of the Brickyard Crossing golf course.

In September 2013, an IndyCar feasibility test was conducted on the Indianapolis Motor Speedway road course. The inaugural race was announced on October 1, 2013, and scheduled for early May 2014.

In October 2013, a construction project reconfigured the road course layout to make it more competitive and better suited for Indy cars. The entire road course portion was repaved and several segments modified. Corner one was changed to a 90-degree turn with a raised curb on the inside. The road course portion inside oval turn four was revised to bypass two slow turns and lengthen the Hulman Boulevard backstretch. At the end of the Hulman Blvd. backstretch, a new 90-degree left corner leads to a new series of faster turns behind the Museum. Rather than follow the original corner 13 used by the U.S. Grand Prix, the IndyCar circuit uses the Snake Pit infield complex. Two of the tighter, sharper corners used by the motorcycles were bypassed and replaced with a single 90-degree right turn leading to the pit entry. The new course distance measures 2.439 miles (3.925 km). The decision was made to run the course in a clockwise layout.

From 2014 to 2019, and again since 2021, the IndyCar Grand Prix has been scheduled for the Saturday two weekends before the Indianapolis 500. Saturday was selected because the Sunday two weeks before the Indy 500 is usually Mother's Day. In addition, the track is closed on Sunday to allow crews to convert the track back to the oval layout and allow teams to convert their cars from road course to oval configuration. Practice for the Indy 500 on the oval begins the following Monday or Tuesday.

Polesitter Sebastián Saavedra's car stalled at the standing start, causing a crash involving Saavedra, Carlos Muñoz, and Mikhail Aleshin. Late in the race, Simon Pagenaud led Ryan Hunter-Reay with both drivers low on fuel. Hélio Castroneves, who had pitted for fuel, charged through the field. Pagenaud held off the challenge and crossed the finish line just ahead of Hunter-Reay and Castroneves. Pagenaud's car ran out of fuel on the cool-down lap. Series rookie Jack Hawksworth led a field-high 31 laps and finished seventh.

Will Power won the pole position for the second annual Angie's List Grand Prix of Indianapolis, continuing a dominating qualifying trend for Penske Racing in 2015. Penske cars qualified first, third, fourth, and fifth. At the start, a multi-car tangle in turn one saw Scott Dixon spin out in front of the field. Castroneves, in his milestone 300th Indy car start, was also involved. Power took the lead and dominated, leading 65 of 82 laps. Graham Rahal finished second after closing to within two seconds of the lead in the final laps.

Pagenaud became the first two-time winner after starting from the pole and leading 57 of 82 laps. Following a caution on lap 38, Conor Daly led briefly while the field cycled through pit stop strategies. Pagenaud executed a 6.7-second pit stop and emerged as the leader, winning the final 14 laps. It was Team Penske's second consecutive win in the Grand Prix and 18th overall win at Indy.

Power started from the pole and led 61 of 85 laps in a caution-free race. Castroneves led 24 laps but slipped to fifth at the finish after a tire strategy that did not work out favorably, running the primary black tires while all other leaders were on the option red tires.

Power won the IndyCar Grand Prix for the second year in a row and third time overall. Starting on the pole, he led 56 of 85 laps and chased down leader Robert Wickens, making a pass on the outside of turn one on lap 51. Power edged Wickens to the blend line by about two feet following the final pit stop sequence and held off Dixon and Wickens for the victory. Power's victory was the milestone 200th Indy car victory for Penske Racing. Two weeks later, Power swept the month by winning the Indianapolis 500.

In wet and rainy conditions, Pagenaud won the IndyCar Grand Prix for the third time. He charged from sixth place to first over the final 18 laps. With two laps to go, race leader Dixon led Pagenaud as they approached the end of the Hulman Boulevard backstretch. Dixon slid a little wide in turn 7, and Pagenaud took the lead in turns 8–9, winning by two seconds. Pagenaud also swept the month by winning the Indianapolis 500 two weeks later, matching Power's accomplishment from 2018.

The GMR Grand Prix was moved from its traditional May date to July 4 weekend in 2020 due to the COVID-19 pandemic, becoming part of the NASCAR Big Machine Hand Sanitizer 400 weekend. Scott Dixon dominated, running away from the field after a full-course caution on lap 36. Dixon had made his second pit stop under green on lap 33, but Oliver Askew crashed on lap 36. The leaders pitted under caution, allowing Dixon to cycle to the front. Dixon then chased down leader Graham Rahal and took the lead on lap 48, winning by 19.9469 seconds. It was Dixon's first victory at the Indianapolis Motor Speedway since the 2008 Indianapolis 500. The Gallagher Grand Prix, held during the summer as a support race for the NASCAR Cup Series Verizon 200 at the Brickyard, ran from 2020 until 2023 with Arthur J. Gallagher & Co. named as sponsor on April 29, 2022.

An Intercontinental GT Challenge doubleheader — the Harvest Grand Prix — was added to the 2020 schedule on October 2–3 as a result of the pandemic and race cancellations. The first race was won by Josef Newgarden after passing Colton Herta on lap 60 and leading the final 25 laps. The second race was won by Will Power, who led all 75 laps from pole, with Herta closing to less than half a second in the final laps before Power held on to win by 0.8932 seconds.

The Indy NXT (formerly Indy Lights) race at Indianapolis originated as the Liberty Challenge (2005–2007), held as a support race to the Formula One United States Grand Prix. Drivers such as Graham Rahal ran this race as a one-off. After the U.S. Grand Prix ended in 2007, the event was put on hiatus, then revived in 2014 as part of the new IndyCar Grand Prix weekend on the 2.439-mile layout. The USF2000 National Championship also holds races on the circuit as part of the Road to Indy ladder.

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