Latest updates, photos, videos from Iowa Speedway
10:14 p.m. ET: And it's Brad Keselowski coming home with the win!
10:12 p.m. ET: Follow the end of the race here.
10:10 p.m. ET: What a star.
Lap 236 - @KyleLarsonRacin up to 5th and running the fastest lap times of the top 5!
10:05 p.m. ET: Should be a great finish.
Back to green! Hornish and Vickers battle for second as Keselowski leads the field #NASCAR
10:01 p.m. ET: Hold everything.
Lap 223: Caution out as Harriman spins on frontstretch. #NASCAR
9:58 p.m. ET: And he may be uncatchable.
9:55 p.m. ET: From one race winner to another?
NICE MOVE BOSSMAN BRAD
9:47 p.m. ET: Dillon's big lead erased, most cars expected to fuel up.
Left rear tire goes down on Pastrana, spins out, sparks fly, caution thrown.
9:42 p.m. ET: Nearing the 200-lap mark. It's going to get interesting.
60 laps to go - most drivers are about 10-15 laps short on fuel. Some being told to save fuel
9:29 p.m. ET: A nice showing for Regan Smith, too.
3 car has checked out to a two-second lead since the restart. @ReganSmith hanging 2nd about one second ahead of 3rd.
9:25 p.m. ET: Watch out for the kid.
Lap 147 - @KyleLarsonRacin's hot rod is starting to come to life, up to p7 and moving forward!
9:22 p.m. ET: The Drive for Diversity driver also competed in the K&N Pro Series race last night.
(Ryan) Gifford get a lap back, grabbing the beneficiary spot in his @NASCAR_NNS debut.
9:18 p.m. ET: Another opportunity for the leaders to pit.
Second caution, Reed Sorenson slowed down on the track. Some fluid might have gotten down.
9:14 p.m. ET: Can Dillon hold on this time?
9:11 p.m. ET: Annett may be the most popular driver in the field, at least for this race. He's an Iowa native.
9:06 p.m. ET: Drew Herring's spin brough out the first caution. Watch the video below.
8:56 p.m. ET: Remember what NASCAR.com's Pat DeCola tweeted earlier? (It was simple: Watch out for Austin Dillon)
Lap 85: Dillon goes low and takes the lead from Smith. Smith, Vickers, Hornish and Scott round out Top 5. #NASCAR
8:54 p.m. ET: "Parker" is, of course, Parker Kligerman.
Lap 80 Parker up to P10 said adjustment helped the center but has made him loose on entry now.
8:51 p.m. ET: No way Larson finishes that low, in our opinion.
Turner Scott Motorsp @TSMotorsports
8:46 p.m. ET: The official report.
Caution 1 - Herring spin in Turn 2. Laps 55-59 for race total of 5 caution laps. K. Wallace was beneficiary #NASCAR
8:44 p.m. ET: Tough break for BK. Then again, he might be the most talented driver in the field and has time to come back.
Keselowski with an outside tire violation. He will start at the tail of the field #NASCAR
8:42 p.m. ET: That caution was for pole-sitter Drew Herring's spin. He's driving the No. 54 Toyota, which leads the owner standings.
8:40 p.m. ET: First yellow of the night, and most everyone heads down pit road.
Caution 1: Spin in Turn 2 #NASCAR
8:36 p.m. ET: Herring has slipped a bit now. That's a fearsome foursome running out front.
Lap 44: Herring has fallen back to 5th. Smith continues to lead followed by Scott, Keselowski and Dillon. #NASCAR
8:34 p.m. ET: The 54 is still in good shape.
8:26 p.m. ET: That "#DoubleDuty" hashtag refers to Pastrana's planned participation in the X Games tomorrow.
8:23 p.m. ET: Dominated the last race here, too, before finishing second.
8:21 p.m. ET: Remember, Regan has been the points leader most of the season.
8:16 p.m. ET: We have gone green! Click here to follow the live leaderboard.
8:12 p.m. ET: Yes sir! (Or ma'am)
Tonight's race: 218.75 miles (250 laps). We are rolling. Three pace laps, then we go green!
8:09 p.m. ET: OK, this is just funny.
8:02 p.m. ET: The national anthem has been sung. Time to go racing!
8 p.m. ET: What about the sunglasses?
7:54 p.m. ET: Nice pictures from Mr. DeCola tonight.
7:52 p.m. ET: Looks like a beautiful Midwest evening.
7:48 p.m. ET: This won't be still for long.
7:45 p.m. ET: Good interview with Travis Pastrana on ESPN. Pastrana will run the X Games paint scheme tonight. Click here for this week's Paint Scheme Preview.
7:39 p.m. ET: Driver introductions are beginning at Iowa Speedway. Coverage of the race is on ESPN.
7:33 p.m. ET: Austin Dillon paced the first two practices and qualified eighth. He led more than 200 laps in the first 250-lap event at Iowa this year.
7:18 p.m. ET: And if you're wondering what defending NASCAR Sprint Cup Series champion Brad Keselowski is doing racing in Iowa the night before a key Cup race in Pocono ... well, just read this story from NASCAR.com's David Caraviello.
7:13 p.m. ET: In the words of Muhammad Ali ... the champ is here.
7:05 p.m. ET: Wallace had to qualify based on his time (he'll start ninth). Moffitt finished ninth in Friday night's K&N Pro Series race.
7 p.m. ET: Pit stall assignments have been finalized. Click here to see the full grid.
6:41 p.m. ET: See, we told you Drew Herring won the Coors Light Pole.
6:28 p.m. ET: Pat DeCola is on the ground in Iowa tonight for NASCAR.com. Click here to follow him on Twitter.
6:17 p.m. ET: Earlier tonight, Drew Herring won the Coors Light Pole, the first of his career. See the full lineup here.
6:11 p.m. ET: Good evening, and welcome to Minute-by-Minute updates from Iowa Speedway. Tonight's NASCAR Nationwide Series race is the U.S. Cellular 250 presented by Enlist Weed Control System.