Weather permitting, nine full time Indycar drivers and one May only driver will test on the IMS road course tomorrow. Fans may watch from the turn 2 mounds.

The original roster for the test had virtually the entire Indycar grid participating, A. J. Foyt Racing, Dale Coyne Racing and his partners, Chip Ganassi Racing, ad Team Penske opted not to attend.

The lineup for Thursday’s test:

Andretti Autosport: Devlin DeFrancesco, Romain Grosjean, Colton Herta, Alexander Rossi

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

Juncos Hollinger Racing: Callum Ilott

Meyer Shank Racing: Helio Castroneves, Simon Pagenaud