The 2017 Lilly Diabetes 250 was the 18th stock car race of the 2017 NASCAR Xfinity Series season and the sixth iteration of the event. The race was held on Saturday, July 22, 2017, in Speedway, Indiana, at Indianapolis Motor Speedway a 2.500 miles (4.023 km) permanent, rectangular-shaped, low-banked racetrack. The race took the scheduled 100 laps to complete. In an exciting battle with 5 laps to go, William Byron, driving for JR Motorsports, held off a charging Paul Menard for his third career NASCAR Xfinity Series win.^[1] To fill out the podium, Joey Logano of Team Penske would finish third, respectively.

The race was held at Indianapolis Motor Speedway, which is an automobile racing circuit located in Speedway, Indiana (an enclave suburb of Indianapolis) in the United States. It is the home of the Indianapolis 500 and the Verizon 200,^[2] and formerly the home of the United States Grand Prix. It is located on the corner of 16th Street and Georgetown Road, approximately six miles (9.7 km) west of Downtown Indianapolis.

Constructed in 1909, it is the second purpose-built, banked oval racing circuit after Brooklands and the first to be called a 'speedway'. It is the third-oldest permanent automobile race track in the world, behind Brooklands and the Milwaukee Mile. With a permanent seating capacity of 257,325, it is the highest-capacity sports venue in the world.^[3]

Qualifying was held on Saturday, July 22, at 12:45 PM EST.^[4] Since Indianapolis Motor Speedway is at least 2 miles (3.2 km), the qualifying system was a single car, single lap, two round system where in the first round, everyone would set a time to determine positions 13–40. Then, the fastest 12 qualifiers would move on to the second round to determine positions 1–12.^[7]

Elliott Sadler of JR Motorsports won the pole with a lap of 54.452 and an average speed of 165.283 mph (265.997 km/h).^[8]

Stage 1 Laps: 30

Stage 2 Laps: 30

Stage 3 Laps: 40