Drivers will take to the track in Indianapolis on Wednesday and Thursday for testing ahead of this summer's Indy 500.
The race itself won't take place for another month, on 25th May on the Memorial Day weekend, but drivers will get two days of running this week to get tuned into the track.
Kyle Larson is one of the drivers set to get the most out of the sessions, with this week likely to be the only time he sets foot in an IndyCar before the famous race and his attempt at the Memorial Day Double.
Larson won't join the track until the afternoon, with the first two hours from 10am (ET) reserved for veterans before rookies drive an orientation program and refresher tests from noon until 2pm.
After that, the track is open to all drivers from 2pm until the day's running ends at 6pm, with everyone returning at 9:30am on Thursday for a 'high boost' session until noon, with teams rehearsing their qualifying engine modes.
Drivers will then get to round out the week in the afternoon, with another all-drivers session from 2pm until 5pm.
All of IndyCar's Indy 500 pre-season testing will be streamed live on YouTube for free. You can find that stream here, or watch without leaving GPFans below.