RELATED: Complete Sunday schedule | Chicagoland starting lineup
Race day info
What: 15th annual myAFibRisk.com 400.
Where: Chicagoland Speedway, 1.5-mile oval in Joliet, Illinois. | Learn more about the track
Green flag time: 3:16 p.m. ET (NBCSN, MRN, SiriusXM NASCAR Radio).
Forecast: Sunny, high of 71 degrees, 0 percent chance of rain, according to the National Weather Service.
National anthem: By tenor Jim Cornelison (@Anthem_Singer), longtime singer of "The Star-Spangled Banner" for the NHL's Chicago Blackhawks.
Grand marshals: Billie Jean King, 39-time Grand Slam champion in women's tennis; Jerry West, 14-time NBA All-Star.
Distance: 267 laps, 400.5 miles.
Pit road speed: 45 mph.
Caution car speed: 55 mph.
Fuel window: 54 laps.
On the front row
(no qualifying speed; starting lineup determined by NASCAR Rule Book, based on speeds in first practice)
1. Kevin Harvick, Stewart-Haas Racing No. 4 Chevrolet.
2. Joey Logano, Team Penske No. 22 Ford.
RELATED: See the full lineup
Fastest in practice
First practice: Kevin Harvick, Stewart-Haas Racing No. 4 Chevrolet (188.317 mph). | Results
Second practice: Martin Truex Jr., Furniture Row Racing No. 78 Chevrolet (183.312 mph). | Results
Final practice: Martin Truex Jr., Furniture Row Racing No. 78 Chevrolet (184.849 mph). | Results
Key story lines
1. Jeff Gordon opens postseason with longevity record in sight
2. What teams, drivers learned from Chase's new format in Year 1
3. NASCAR officials add camera, official dedicated to restart enforcement
4. Finding balance, Logano looking 'at the big picture in life'
Former winners in the field
Tony Stewart (3); Kevin Harvick, Brad Keselowski (2); Kyle Busch, Dale Earnhardt Jr., Jeff Gordon, Matt Kenseth, Ryan Newman (1).
They said it
"The best I know how to deal with things is to speak with your performance and with your car. I am not the wittiest guy out there so I decided to just drive the car and shut up. You just block it out and you drive your car." -- Joey Logano, on defending series champion Kevin Harvick's pre-Chase gamesmanship.