INDIANAPOLIS — In preparation for the 106th Running of the Indianapolis 500 presented by Gainbridge, NTT INDYCAR SERIES drivers will participate in an Open Test from 11 a.m.-6 p.m. (ET) Wednesday, April 20 and 10 a.m.-4 p.m. Thursday, April 21 on the famed 2.5-mile oval at the Indianapolis Motor Speedway.

All 32 confirmed entries will be here.

On Wednesday, veterans will take to the oval from 11 a.m.-1 p.m., with Rookie Orientation Program and refresher tests from 1-3 p.m. The rookies are Kyle Kirkwood, Devlin DeFrancesco, Romain Grosjean, Jimmie Johnson, David Malukas, Callum Ilott and Christian Lundgaard.

 Phase 1 requires a driver to complete 10 laps at speeds between 205-210 mph. Phase 2 requires a driver to complete 15 more laps at speeds between 210-215 mph. The final stage, Phase 3, requires a driver to complete 15 laps at speeds over 215 mph.

For Johnson and Grosjean, they just need to finish their third and final phase. They did their first two phases at IMS back in October.

Marco Andretti, Juan Pablo Montoya, Tony Kanaan, Santino Ferrucci and Sage Karam will handle the refresher program.

All participants will have the track available from 3-6 p.m. Wednesday. The track is open to all cars from 10 a.m.-4 p.m. Thursday.

The Turn 2 Viewing Mounds will be open for public viewing.

WHO: NTT INDYCAR SERIES teams and drivers scheduled to participate:

AJ Foyt Racing: Dalton Kellett, Kyle Kirkwood, JR Hildebrand

Andretti Autosport: Marco Andretti, Alexander Rossi, Devlin DeFransceco, Romain Grosjean, Colton Herta

Arrow McLaren SP: Juan Pablo Montoya, Pato O’Ward, Felix Rosenqvist

Chip Ganassi Racing: Scott Dixon, Marcus Ericsson, Jimmie Johnson, Tony Kanaan, Alex Palou

Dale Coyne Racing: David Malukas, Takuma Sato

Dreyer & Reinbold Racing: Santino Ferrucci, Sage Karam

Ed Carpenter Racing: Ed Carpenter, Conor Daly, Rinus VeeKay

Juncos Hollinger Racing: Callum Ilott

Meyer Shank Racing: Helio Castroneves, Simon Pagenaud

Rahal Letterman Lanigan Racing: Graham Rahal, Jack Harvey, Christian Lundgaard

Team Penske: Josef Newgarden, Scott McLaughlin, Will Power