2024 AdventHealth 400

Kansas Speedway is a 1.5-mile (2.4 km) tri-oval race track in Kansas City, Kansas. It was built in 2001 and hosts two annual NASCAR race weekends. The NTT IndyCar Series also raced there until 2011. The speedway is owned and operated by the International Speedway Corporation.

• (R) denotes rookie driver.
• (i) denotes driver who is ineligible for series driver points.

The race was scheduled to start at 2 pm Central time but rain fell which caused a nearly 4 hour delay and the green flag fell at around 5:43 Central. Pole sitter Christopher Bell and outside pole sitter Ross Chastain battled for the lead and Bell beat Chastain to lead lap 1. Chastain led lap 2 before he got infront of Bell on lap 3 and held on to it. At around lap 31, green flag pit stops would begin. Chastain would come in on lap 33 giving the lead back to Christopher Bell. Bell would pit on lap 35 giving the lead to Derek Kraus. On lap 42, Ross Chastain took the lead from Kraus. On lap 44, Kyle Larson took the lead but Chastain immeadietly took it back. On lap 49, Larson took the lead again but Chastain immeadietly passed him and Chastain took the lead back. Larson got infront again on lap 50 but couldn't hold the lead and was immeadietly passed by Chastain. Larson led lap 51 before he got infront of Chastain and held on to it. On lap 63, Denny Hamlin went to take the lead and led that lap and the following lap but could not get infront of Larson and Larson took it back on lap 65. On lap 66, Hamlin went to take the lead and led that lap and the following two laps before he got infront of Larson on lap 69. Hamlin would hold off Ross Chastain and win stage 1.

Ross Chastain won the race off of pit road and he led the field to the restart on lap 89. On the restart, Chastain and Christopher Bell fought hard for the lead but Kyle Larson made a 3 wide pass on the both of them and Larson took the lead. Behind Larson, Chastain, Bell, Martin Truex Jr., Chris Buescher, and Ty Gibbs went 5 wide for second place at the start-finish line in which they were all the keep their cars under control to not cause a wreck. At around lap 117, green flag pit stops began once again. Larson would pit on lap 119 giving the lead to Tyler Reddick. Reddick would pit on lap 125 and after everything cycled through, Chris Buescher was the new leader. Buescher was looking to give Ford their first win in all of NASCAR of the season as the manufacturer had none of their teams win in the Truck Series, Xfinity Series, and Cup Series at this point in the season. Buescher would hold on and win stage 2.

Kyle Larson won the race off of pit road with Buescher in second. Unfourtunetly for Buescher, he was penalized for his crew going over the wall too soon and had to start from the rear. To make matters worse, a piece of his windshield tear off landed on the rear part of his roof which could possibly affect his aerodynamics but Buescher elected not to pit. The race would restart on lap 174 and Buescher's tear off would get blown off the car once he picked up speed and out of the way. On lap 176, the first caution for incident and the third of the day would occur when Jimmie Johnson got bumped by Corey LaJoie in turn 1 which caused Johnson to spin to the apron, come up the track, and hit the outside wall. The wreck also collected LaJoie and Austin Hill after LaJoie spun and hit the outside wall along with Hill. Unhappy, Johnson had gotten into the AMR Safety team pickup to drive him to the infield care center but decided to come back out and stared down LaJoie as LaJoie went by Johnson to show him how mad he was. The race would restart on lap 184. On the restart, Kyle Busch took the lead from Kyle Larson. On the next lap, the fourth caution would fly when Austin Cindric spun down the backstretch and collected Bubba Wallace and Michael McDowell that almost had McDowell flip. The race would restart on lap 191. On the next lap, the 5th caution would fly once again when Harrison Burton spun off of turn 2. The race would restart on lap 198. On the restart, Kyle Larson would take the lead from Kyle Busch. At the same time, the 6th caution flew when Joey Logano spun off of turn 4 after he got checked up by Chase Briscoe. Kyle Busch won the race off of pit road but Todd Gilliland, Denny Hamlin, Chris Buescher, Justin Haley, Bubba Wallace, and Michael McDowell did not pit and Gilliland led the field to the restart on lap 206. On the restart, Denny Hamlin took the lead. On lap 208, Chris Buescher went to battle with Hamlin for the lead and led that lap before he got infront of Hamlin on the next lap. On lap 215, Hamlin took the lead back from Buescher. With 40 laps to go, Buescher went to take the lead on Hamlin and led that lap but could not get infront of Hamlin. Hamlin held on to the lead and began to pull away from Buescher. Depending if Hamlin could save enough fuel, it looked like it was going to be Hamlin to win it. But, Martin Truex Jr. came and took 2nd from Buescher with 8 laps to go and began to close in quickly to Hamlin after Truex had recently made a pit stop. It looked like it was going to be a finish between Hamlin and Truex. But with 7 laps to go, the 7th and final caution flew when Kyle Busch spun in turn 2. This would eventually have cars make pitstops and force the race into overtime.

Denny Hamlin won the race off of pit road with Chris Buescher in second and Kyle Larson in third and Hamlin led the field to the restart. On the restart, Larson went to make it a 3 wide pass for the lead but Buescher would get infront of Larson and take the lead while Hamlin began to fall back out of contention. On the last lap, Buescher remained infront even makes blocks on Larson for the lead. But off of turn 2, Larson got a run on Buescher and Larson was able to close in and got to Buescher's outside in turn 3. The two remained side by side with the third and fourth place cars in Chase Elliott and Martin Truex Jr., who restart 10th but closed in since he got four fresh tires on the pit stop, closing in on the two. Both Buescher and Larson remained side by side coming towards the finish line with both of them making contact twice and Buescher and Larson crossed the finish line together in a finish that looked too close to call from the naked eye. At first, the timing and scoring had Buescher ahead of Larson which caused Buescher's crew to start celebrating believing they had won. But upon further replay, it showed that Larson barely got ahead of Buescher across the finish line and they changed the decision saying Larson had won and Buescher finished in second. This would be Larson's second win of the season. The Margin of victory was 0.001 seconds, the closest finish ever recorded in NASCAR Cup Series history and the second closest finish ever recorded in all of NASCAR history behind the 2018 PowerShares QQQ 300 at Daytona in the Xfinity Series that saw Tyler Reddick beat Elliott Sadler by 0.0004 seconds. It was also the third time this season in the Top 3 Series of NASCAR that Ford had finished second in a photo finish. Even more interesting, all three have been to a Chevy car. The two previous photo finish losses for Ford against a Chevy was when Ryan Blaney lost to Daniel Suárez in the Cup Atlanta race by 0.003 seconds and Ryan Sieg lost to Sam Mayer in the Xfinity Texas race by 0.002 seconds. Chase Elliott, Martin Truex Jr., and Denny Hamlin rounded out the top 5 while Christopher Bell, Alex Bowman, Kyle Busch, Noah Gragson, and Michael McDowell rounded out the top 10.[12]

Stage One Laps: 80

Stage Two Laps: 85

Stage Three Laps: 102

• Lead changes: 27 among 10 different drivers
• Cautions/Laps: 7 for 43 laps
• Red flags: 0
• Time of race: 3 hours, 10 minutes, and 42 seconds
• Average speed: 126.481 miles per hour (203.551 km/h)
• Margin of Victory: 0.001 seconds

Fox Sports covered their 13th race at the Kansas Speedway. Mike Joy, Clint Bowyer and three-time Kansas winner Kevin Harvick called the race from the broadcast booth. Jamie Little and Regan Smith handled pit road for the television side, and Larry McReynolds provided insight from the Fox Sports studio in Charlotte. Due to the rain delay, an MLS match originally scheduled for FS1 was moved entirely to FS2 to accommodate the delayed start of the race.

MRN had the radio call for the race which was also simulcasted on Sirius XM NASCAR Radio. Alex Hayden, Jeff Striegle and former crew chief Todd Gordon called the race in the booth when the field raced through the tri-oval. Mike Bagley covered the race from the Sunoco spotters stand outside turn 2 when the field was racing through turns 1 and 2. Kurt Becker called the race from a platform outside turn 4. Steve Post, Kim Coon & Chris Wilner worked pit road for the radio side.