The 2015 FedEx 400 benefiting Autism Speaks was a NASCAR Sprint Cup Series race held on May 31, 2015, at Dover International Speedway in Dover, Delaware. Contested over 405 laps – extended by five laps due to a green-white-checkered finish – on the 1 mile (1.6 km) concrete speedway, it was the 13th race of the 2015 NASCAR Sprint Cup Series season. Jimmie Johnson won the race, his fourth win of the season and tenth at Dover, while Kevin Harvick finished second and Kyle Larson finished third. Kasey Kahne and Aric Almirola rounded out the top five.

Denny Hamlin scored the pole for the race and led 118 laps on his way to a 21st-place finish after being caught up in a late race wreck. Martin Truex Jr. led the most laps for the third consecutive race on his way to a sixth-place finish. The race had 15 lead changes among nine different drivers, as well as seven caution flag periods for 40 laps.

2015 FedEx 400

This was the 74th career victory for Jimmie Johnson, tenth at Dover International Speedway – becoming the fifth driver to win ten or more races at one race track – and 18th at the track for Hendrick Motorsports. This win moved Jimmie Johnson up to third in the points standings. Chevrolet left Dover with a 51-point lead over Ford in the manufacturer standings.

2015 FedEx 400

The FedEx 400 benefiting Autism Speaks was carried by Fox Sports on the cable/satellite Fox Sports 1 network for the American television audience. The radio broadcast for the race was carried by the Motor Racing Network and Sirius XM NASCAR Radio.

2015 FedEx 400

Report

Background

Dover International Speedway (formerly Dover Downs International Speedway) is a race track in Dover, Delaware, United States. Since opening in 1969, it has held at least two NASCAR races. In addition to NASCAR, the track also hosted USAC and the Verizon IndyCar Series. The track features one layout, a concrete oval, with 24° banking in the turns and 9° banking on the straights. The speedway is owned and operated by Dover Motorsports.

The track, nicknamed "The Monster Mile", was built in 1969 by Melvin Joseph of Melvin L. Joseph Construction Company, Inc., with an asphalt surface, but was replaced with concrete in 1995. Six years later in 2001, the track's capacity moved to 135,000 seats, making the track have the largest capacity of sports venue in the mid-Atlantic. In 2002, the name changed to Dover International Speedway from Dover Downs International Speedway after Dover Downs Gaming and Entertainment split, making Dover Motorsports. From 2007 to 2009, the speedway worked on an improvement project called "The Monster Makeover", which expanded facilities at the track and beautified the track. After the 2014 season, the track's capacity was reduced to 95,500 seats.

Kevin Harvick entered Dover with a 41-point lead over Martin Truex Jr. Joey Logano entered 66 back. Joey Logano entered 62 back. Dale Earnhardt Jr. entered 72 back. Jimmie Johnson entered 80 back.

Tires

Goodyear provided teams with a newly constructed left-side tire compound intended to provide more grip. Teams were also given nine sets of tires for the race instead of the normal eleven.

Penalties from Charlotte

Following two consecutive weeks of failing to pass qualifying tech inspection on the first attempt, the No. 48 Hendrick Motorsports Chevrolet and the No. 51 HScott Motorsports Chevrolet teams were to be relegated to having the last pit stall selections after the completion of qualifying. The 48 team, however, appealed the penalty and will pick in the order they qualify.

Entry list

The entry list for the FedEx 400 was released on Monday, May 25 at 12:41 p.m. Eastern time. Forty-five drivers were entered for the race. The only car with a different driver than the previous week's Coca-Cola 600 is Brian Scott. He returned to the seat of the No. 33 Hillman-Circle Sport LLC Chevrolet.

First practice

Jimmie Johnson was the fastest in the first practice session with a time of 21.969 and a speed of .