Track action was due to start at Indianapolis Motor Speedway today at 9.00am local (Eastern) time, with first practice scheduled to run until 11:15am. But early morning rain soaked the 2.5-mile oval.
After rain showers washed out the morning session, the track dried and teams were allowed to bring their cars to pitlane at 1:50pm local time for what should have been practice two.
But just as drivers were about to hit the track at 2:15pm for their installation laps, the rain returned and cars were sent back to their garages just before 2:30pm.
Another rain shower then soaked the track, and IndyCar officially gave up hope at 4:10pm local time over the track drying in time to get any running in.
The weather forecast is much better for the rest of the week, with sunny conditions expected tomorrow once the rain bands have blown through.
Source: Autosport