On Saturday, the procedure will be as follows:  On Sunday, time trials will conclude as follows:  Five different drivers won the first five races of the 2019 IndyCar Series season. Josef Newgarden won the season-opening race at St. Petersburg. Series rookie Colton Herta won the inaugural race at Circuit of the Americas, in doing so became the youngest driver ever to win an Indy car race. Takuma Sato then won the race at Birmingham, and Alexander Rossi won at Long Beach. The month of May opened with Simon Pagenaud winning the IndyCar Grand Prix, his first win since 2017 and third win in the event. Entering the Indianapolis 500, Josef Newgarden led the championship points standings. For the first time since 2015, no oval races were held prior to Indianapolis. On January 31, 2019, it was announced that the online financial services company Gainbridge would become the new presenting sponsor of the 500 under a four-year deal. The official entry list was released with 36 car/driver combinations. All chassis are Dallara IR12, with Firestone tires. An open test on the oval was scheduled for and held April 24, 2019 followed by a private manufacturer's test on the combined road course on April 29. On August 6, 2018 a private test was conducted at the Indianapolis Motor Speedway oval by Firestone. Two teams, one each representing Chevrolet and Honda, participated. Team Penske with driver Will Power tested for Chevy, and Chip Ganassi Racing with driver Scott Dixon tested for Honda. The test was focused on further development to the UAK18 universal aero kits which debuted in 2018. After some criticism during the 2018 race, improvements were made to the front wing endplate and underwing panels to address stability issues. Speeds were not announced, and no incidents were reported. A series-conducted test was scheduled for October 17, 2018 at the Indianapolis Motor Speedway. Six teams tested with six cars, further developing aerodynamic specifications for the UAK18 universal aero kit as well as Firestone tires. In addition, the drivers were able to experience for the first time the performance of the Speedway's pavement, which was recently upgraded with an application of the asphalt binding agent Recycled Polyethylene (RPE). No speeds were announced, and no incidents were reported. Following the test, the participants expressed that the track had more grip, and the new tire was more consistent than the compound used in 2018. Three Indy 500 rookies took part in an oval acclimation test at Texas Motor Speedway on April 19.