Delays caused by heavy fog over Barber Motorsports Park prevented any IndyCar drivers from setting a time in Saturday morning's third practice session.
The session did not go green until almost 20 minutes after its scheduled start time of 8am local time because the fog delayed the arrival of a medical helicopter. Today's packed program, which includes a Grand-Am race, made it impossible to push the session back, meaning that drivers were only able to squeeze in a single installation lap before the checkered flag was waved.
IndyCar has confirmed that qualifying will go ahead as scheduled later this morning. The truncated practice session was the last before the cars are due to qualify, meaning that the teams will go into qualifying having had just one dry session to sort the cars out after second practice was rained out yesterday afternoon.
The lack of running time is particularly bad news for the Dreyer & Reinbold team, which changed the engine in Oriol Servia's car last night and will now have no opportunity to check the unit properly before qualifying.