After starting 90 minutes late, the GEICO 400 Sprint Cup Series race at Chicagoland Speedway was red flagged at 4:45pm/et on lap 109. The halfway point is lap 134. Jet dryers got on track at just before 7:00pm/et, after the rain slowed, but with cooler temps and damp conditions, drying is going slowly.
As of 8:15pm/et, the track estimates it will take until 10:00pm/et to finish drying the track. NASCAR is hoping to resume the race about that time.
ESPN2 will have TV coverage if the race goes back to green.
If the race is postponed, it will likely start at 12:00pm/et tomorrow.
For more weather info see the Chicago Race Info Page - weather section.(9-15-2013)