Contested over 138 of the scheduled 200 laps on the 2 mile (3.2 km) D-shaped speedway, it was the 15th race of the 2015 NASCAR Sprint Cup Series season.

Kevin Harvick led a race high of 63 laps before a flat tire and rain relegated him to a 29th-place finish.

This was the 27th career victory for Kurt Busch, third at Michigan International Speedway and first at the track for Stewart-Haas Racing.

Michigan International Speedway (MIS) is a two-mile (3.2 km) moderate-banked D-shaped speedway located off U.S. Freeway 12 on more than 1,400 acres (5.7 km2)[13] approximately four-mile (6.4 km) south of the village of Brooklyn, in the scenic Irish Hills area of southeastern Michigan.

Michigan is the fastest track in NASCAR due to its wide, sweeping corners and long straightaways; typical qualifying speeds are in excess of 200 MPH (320 km/h) and corner entry speeds are anywhere from 215 to 220 mph (346 to 354 km/h) after the 2012 repaving of the track.

The entry list for the Quicken Loans 400 was released on Tuesday, June 9 at 9:09 a.m. Eastern time.

21 Wood Brothers Racing Ford driven by Ryan Blaney were entered the week before at Pocono.

[14] His teammate Kurt Busch slapped the wall exiting turn 2 with 30 minutes remaining in the session and switched to his backup car.

[18] “Our Great Clips Chevrolet has had speed all three runs, so I knew we’d have a shot today, so that was cool,” Kahne said.

The track is going to change a lot, though, come Sunday, with all the racing going on this weekend and then our practices tomorrow.

So, track position will play a big role in being there at the end of the race.”[18] "Kasey [Kahne] put up a little better lap than I did, but it was still a solid run," Kevin Harvick said after qualifying second.

I am proud of everyone at Team Penske, Ford and Roush Yates engines for that.”[18] Brendan Gaughan was the lone driver who failed to qualify for the race.

Kasey Kahne led the field to the green flag, but lost the lead to Carl Edwards on the first lap.

The rain started coming down harder all around the track and the field was brought back down pit road again.

He too failed on his gamble, pitted for gas three laps later and gave the lead to Kurt Busch.

“Yeah, we could see weather coming there off of (Turn) 4 and just praying that it would get here in time for me to stay out and be in the lead when the rain did hit,” Larson said.

The field was brought down pit road and the race was red flagged for the fourth time with 62 laps to go.

[27] Eventually, NASCAR called the race due to darkness being near and no sign of the weather letting up and Kurt Busch scored his 27th career win and third at Michigan, similar to the rain-shortened Coke Zero 400 last year when Aric Almirola scored his first career win at Daytona.

We judge it on how much time do we have left – daylight – you don’t have lights in Michigan, and more importantly, what does the weather look like.

The fans had stuck it out for a long time and then when you looked at the radar and the possibility of continued lightning and rain, we thought it was the most prudent decision to make at that time to call it a day.’’ “(Crew chief) Tony Gibson led these guys through a back-up car, the pit crew was there giving it its best,” Kurt Busch said.

“You know, it didn't give you a whole lot of opportunities to understand your car and know exactly how to adjust your car and what to work on, so we were still dealing with some issues that we wanted to improve when the final shower came.”[30] “We were able to use the strategy to our benefit and come out of here with a top-10 effort and that feels great for this team,” Trevor Bayne said of his season-best finish of ninth.

“We have been working hard to get up better results all season and to get this ninth place finish today is a confidence and momentum builder.”[30] In his weekly Monday appearance on the Sirius XM NASCAR Radio program The Morning Drive, NASCAR Executive Vice-President and Chief Racing Officer Steve O'Donnell explained to Mike Bagley and Pete Pistone the process and reasoning to why the race was called before its scheduled conclusion.

Mike Joy, Larry McReynolds and two time Michigan winner Darrell Waltrip had the booth to call the race.

Jamie Little, Chris Neville and Matt Yocum handled the pit road duties for the television side.

Alex Hayden, Winston Kelley and Steve Post worked pit road for MRN.