In a season mired with a multitude of on-track frustrations and a long winless drought, AJ Allmendinger cashed back in an emphatic style and became the first competitor to be guaranteed a championship berth in the 2024 NASCAR Xfinity Series finale by winning the Alsco Uniforms 302 at Las Vegas Motor Speedway on Saturday, October 19.

The 42-year-old Allmendinger from Los Gatos, California, led three times for a race-high 102 of 201 scheduled laps in an event where he started in sixth place and racked up 16 stage points with two top-five results recorded during the event’s two stage periods. Then after cycling his way into the lead for the first time at the start of the final stage period with 105 laps remaining, Allmendinger proceeded to dominate as he led the following 52 laps before navigating his way through a late cycle of green flag pit stops that enabled him to reassume the lead with 50 laps remaining.

Amid two late-race caution periods and ensuing restarts, Allmendinger fended off late charges from Ryan Sieg, including the final one during a two-lap shootout to the finish, to score his first Xfinity Series victory of the 2024 season and race his way into the Championship 4 round, where he will be one of four Playoff contenders to contend for this year’s series championship.

With on-track qualifying that determined the starting lineup occurring on Friday, October 18, Brandon Jones notched his fourth Xfinity pole position of the 2024 season after he posted a pole-winning lap at 183.430 mph in 29.439 seconds. Joining him on the front row was Playoff contender Cole Custer, who clocked in his best qualifying lap at 183.187 mph in 29.478 seconds.

Prior to the event, Sheldon Creed dropped to the rear of the field due to an engine change made to his No. 18 Joe Gibbs Racing Toyota entry. Kyle Weatherman also dropped to the rear of the field for unapproved adjustments made to his No. 91 DGM Racing Chevrolet entry.

When the green flag waved and the race started, Brandon Jones gained the early upper hand from the inside lane as he muscled his No. 9 Menards Chevrolet Camaro away from Cole Custer with a push from Playoff contender Chandler Smith entering the first two turns. With Chandler Smith following suit in second ahead of Custer and Playoff contenders Sammy Smith and Sam Mayer for the following two turns, Jones proceeded to lead the first lap.

Over the next three laps, Jones retained his advantage as high as three-tenths of a second while Custer reassumed second place from Chandler Smith. Sammy Smith and Mayer would continue to follow suit in the top five ahead of Riley Herbst while Playoff contender AJ Allmendinger retained seventh place ahead of Taylor Gray, Playoff contender Jesse Love, Playoff contender Justin Allgaier, Parker Kligerman and Ryan Sieg.

Then on the fourth lap, the event’s first caution flew due to an incident involving Leland Honeyman and JJ Yeley, when they collided with one another against the backstretch’s outside wall. During the event’s first caution period, select names including Daniel Dye and Joey Gase pitted while the rest led by Jones remained on the track

When the race restarted under green on the eighth lap, Sammy Smith made a three-wide move beneath teammate Jones and Custer through the frontstretch and he would muscle ahead with the lead through the first two turns. As Smith led a side-by-side duel between Custer and Jones through the backstretch, the field behind fanned out to multiple lanes as Chandler Smith muscled his way up to fourth place. Through the frontstretch, Allgaier would make a bold four-wide move towards the frontstretch’s apron in his bid to move up the leaderboard.

Through the first 10 scheduled laps and amid a series of on-track battles, Sammy Smith retained the lead by a tenth of a second over Custer while Jones followed suit in third place by nine-tenths of a second. Behind, Allmendinger and Chandler Smith would battle for fourth place in front of Herbst and Allgaier as Sammy Smith retained a narrow advantage over Custer. Chandler Smith then nearly got loose in front of Allgaier through Turns 3 and 4 during the following lap, but he kept his car straight despite dropping to seventh place. With Allmendinger, Herbst and Allgaier all moving in front of Chandler Smith, Custer would then overtake Sammy Smith for the lead on Lap 13 and Custer would proceed to lead by nearly half a second by Lap 15.

By Lap 20, Custer stretched his advantage to a second over Sammy Smith as third-place Jones also trailed by a second. Behind, Allgaier trailed by two seconds in fourth place along with fifth-place Allmendinger while Herbst, Chandler Smith, Aric Almirola, Ryan Sieg and Taylor Gray were in the top 10 ahead of Jesse Love, Austin Hill, Sam Mayer, Parker Kligerman and Parker Retzlaff.

Ten laps later, Custer continued to lead by nine-tenths of a second over Jones followed by Allgaier, who trailed in third place by a second, while Herbst and Sammy Smith followed suit in the top five. As Shane van Gisbergen pitted under green due to an engine issue and eventually was taken to the garage, Custer retained the lead by three-tenths of a second over a hard-charging Jones while Allgaier trailed by eight-tenths of a second over the next four laps.

On Lap 34, however, the caution returned due to an incident involving Dylan Lupton towards the outside wall in Turn 2. During the caution period, some led by Custer and including Allgaier, Love, Hill and Mayer pitted while the rest led by Jones remained on the track. Amid the pit stops, Anthony Alfredo was penalized for an uncontrolled tire violation.

The start of the next restart period on Lap 39 featured Herbst briefly muscling ahead of Jones with the lead from the inside lane ahead of Allmendinger and Chandler Smith before Allmendinger made his move beneath Herbst entering the first two turns. Allmendinger, however, almost slid up into Herbst through the turns, which also caused Chandler Smith to briefly step out of the gas to avoid hitting Allmendinger as he was pinned in a four-wide battle with Jones, Sammy Smith, Taylor Gray and a bevy of competitors through the backstretch. With Allmendinger battling Jones for the runner-up spot and Chandler Smith retaining fourth ahead of teammate Almirola and the rest of the field, Herbst proceeded to lead the following lap.

In the midst of the battles within the field, Custer used the four fresh tires to charge his way from the top 14 to back into the top five and he would proceed to battle Allmendinger and Jones for the runner-up spot by Lap 42 as Herbst retained the lead. Custer would then reassume the lead by Lap 43 and Allgaier would follow suit on his four fresh tires while Herbst dropped to third place in front of Allmendinger.

When the first stage period concluded on Lap 45, Custer fended off a hard-charging Allgaier to claim his fourth Xfinity stage victory of the 2024 season. Allgaier settled in second ahead of Herbst, Allmendinger and Creed while Ryan Sieg, Love, Hill, Jones and Mayer were scored in the top 10. With six of eight Playoff contenders accumulating the event’s first round of stage points, the remaining Playoff contenders including Chandler Smith and Sammy Smith were scored in 15th and 16th, respectively, while Almirola fell back to 12th place.

Under the stage break, some led by Herbst and including Allmendinger pitted while the rest led by Custer and Allgaier remained on the track. Amid the pit stops, Almirola was penalized for a vehicle interference.

The second stage period started on Lap 51 as Custer and Allgaier occupied the front row. At the start, Custer and Allgaier dueled for the lead through the first two turns as the field fanned out from the frontstretch through the backstretch. After dueling with Custer through the backstretch, Allgaier would proceed to muscle his No. 7 BRANDT Chevrolet Camaro ahead with the lead through Turns 3 and 4, where he would lead the following lap. As Allgaier led Custer, Creed was trying to fend off Ryan Sieg for third place while Mayer, Love, Allmendinger, Chandler Smith, Hill and Retzlaff followed suit in the top 10.

Just past the Lap 55 mark, Allgaier stretched his advantage to more than a second over Custer while Creed, Ryan Sieg and Mayer followed suit in the top five. Behind, Allmendinger, who pitted during the first stage break period, was up to sixth place on four fresh tires as Herbst, Hill and Sammy Smith battled fiercely for 10th place. Amid the battles, Allgaier would add another second to his advantage as he led by more than two seconds by Lap 60.

At the Lap 70 mark, Allgaier continued to extend his advantage as he was leading by more than three seconds over Custer while Allmendinger also trailed by more than three seconds in third place. As Ryan Sieg and Chandler Smith were racing in the top five, Jones would challenge Smith for fifth place as Love, Herbst, Creed and Sammy Smith all trailed in the top 10 by 10 seconds. Meanwhile, Mayer had fallen to 11th place while Hill was mired back in 17th place.

Ten laps later, Allgaier stabilized his advantage to three seconds over Allmendinger while Ryan Sieg trailed in third place by nearly five seconds. With Jones and Chandler Smith up into the top five, Custer dropped to sixth place ahead of Love while Almirola occupied eighth place ahead of Herbst and Sammy Smith.

When the second stage period concluded on Lap 90, Allgaier, who was mired behind lapped traffic, cruised to his 16th Xfinity stage victory of the 2024 season. Allmendinger followed suit in second place by three-tenths of a second while Ryan Sieg, Jones, Chandler Smith, Custer, Almirola, Love, Herbst and Taylor Gray were scored in the top 10. With five of eight Playoff contenders racking up the event’s second round of stage points, the remaining Playoff contenders that include Sammy Smith, Mayer and Hill were mired back in 12th, 13th and 15th, respectively.

During the stage break, the entire lead lap field led by Allgaier pitted. Following the pit stops, Allmendinger exited pit road first ahead of Allgaier, Custer, Chandler Smith and Herbst while Almirola, Ryan Sieg, Creed, Love and Jones followed suit in the top 10.

With 105 laps remaining, the final stage period commenced under green as Allmendinger and Allgaier occupied the front row. At the start, however, the caution quickly returned due to Taylor Gray, who restarted in 11th place, getting hit by Sammy Smith and spinning his No. 19 Operation 300 Toyota Supra towards the middle of the frontstretch amid an accordion effect towards the front of the field. In the process of the spin, Gray’s sliding Toyota barely avoided the Chevrolet entries of Kligerman and Hill before it came to a rest backward across the outside wall as the rest of the field scattered to avoid hitting Gray.

During the caution period, select names including Richard Childress Racing’s Love and Hill pitted while the rest led by Allmendinger remained on the track.

The start of the next restart period with 99 laps remaining featured Allmendinger fending off Allgaier to lead the field through the first two turns as Chandler Smith challenged Allgaier for the runner-up spot. The latter would fend off the former for the runner-up spot as Allmendinger led the ensuing lap. With Allmendinger leading, Custer and Almirola battled for fourth place in front of Ryan Sieg, Jones and Herbst before Custer, Sieg and Jones all blew past Almirola for fourth through sixth, respectively, with 96 laps remaining.

With 90 laps remaining, Allmendinger was leading by two-tenths of a second over Allgaier while third-place Chandler Smith trailed by one-and-a-half seconds. Behind, Ryan Sieg and Custer trailed by two seconds in the top five while Jones, Almirola, Herbst, Creed and Kligerman were racing in the top 10 ahead of Mayer. In addition, Love was mired in 16th place and racing two spots ahead of teammate Hill while Sammy Smith was down in 22nd place.

Ten laps later, Allmendinger retained the lead by four-tenths of a second over Allgaier despite the latter attempting to have the former slow down and help remove debris from Allgaier’s front grille while Allmendinger declined the offer to help. Meanwhile, third-place Chandler Smith trailed in third place by nearly two seconds as Ryan Sieg and Almirola were in the top five.

Soon after, Allgaier, who was trying to use lapped competitors to remove debris, radioed concerning an alternator issue with his car. Amid the issues, Allgaier used the lapped competitor of Akinori Ogata to remove the debris off his front grille. With the debris gone, Allgaier trailed the leader Allmendinger by more than a second with less than 75 laps remaining. In the process, Chandler Smith continued to trail the lead in his No. 81 QuickTie Toyota Supra by two seconds in third place.

With 60 laps remaining, Allmendinger stretched his advantage to more than two seconds over Allgaier while Ryan Sieg was up to third place and trailing the lead by four seconds. As Chandler Smith dropped to fourth place in front of Kligerman, Almirola was in sixth place and racing ahead of Custer, Herbst, Jones and Love.

A few laps later, green flag pit stops commenced as a bevy of names including Chandler Smith, Custer, Herbst and Corey Heim pitted. More names including Allgaier, Almirola, Mayer and Jeb Burton would also pit as the leader Allmendinger would then pit with 55 laps remaining. Gray, Jones, Hill and Anthony Alfredo would also pit as Kligerman, who inherited a brief lead, pitted under green with nearly 53 laps remaining. As more names including Ryan Sieg, Creed, Daniel Dye, Jeremy Clements, Matt DiBenedetto and Kyle Weatherman pitted, Gray was penalized for speeding on pit road.

Back on the track, Love, who inherited a brief lead, pitted under green with 51 laps remaining along with Josh Williams, whose fueler had a bevy of fuel spilling out of the fuel can and in the pit box while trying to fuel the car. This allowed Allmendinger to cycle back into the lead with 50 laps remaining as he was leading by more than two seconds over Allgaier. In the ensuing pit cycle, Chandler Smith, Sammy Smith and Sieg cycled into the top five ahead of Custer.

With less than 40 laps remaining, Allmendinger continued to lead by nearly three seconds over Allgaier while Ryan Sieg, Chandler Smith and Herbst were scored in the top five ahead of Custer, Kligerman, Jones, Almirola and Love. With five of eight Playoff contenders racing in the top 10 on the track, Mayer and Hill were mired in 12th and 13th, respectively, while Sammy Smith, who pitted under green, was down in 27th place and scored multiple laps down.

Then with 31 laps remaining, the caution flew due to Kyle Sieg spinning his No. 39 The Thomas Group Ford Mustang entering the frontstretch. At the moment of caution, Allmendinger was leading by four seconds over Ryan Sieg while 14 of 38 starters were scored on the lead lap. During the caution period, the lead lap field led by Allmendinger pitted for service. Following the pit stops, Allmendinger retained the lead after he exited pit road first ahead of Sieg, Chandler Smith, Herbst, Allgaier and Kligerman.

At the start of the ensuing restart period with 25 laps remaining, Allmendinger muscled ahead with the lead from the inside lane as Chandler Smith followed suit. With Smith assuming the runner-up spot, Sieg dueled with Kligerman for third place as Herbst tried to throw a three-wide move beneath both for the spot. Amid the battles, Sieg muscled his No. 28 Sci Aps Ford Mustang ahead of both to retain the spot as Allmendinger led the following lap. During the next lap, Sieg tried to close in on Chandler Smith for the runner-up spot and Kligerman was challenged by Allgaier and Herbst for fourth place while Allmendinger retained the lead.

With 20 laps remaining, Allmendinger continued to lead by eight-tenths of a second over Ryan Sieg, who reassumed the runner-up spot by Chandler Smith a few laps earlier, as Allgaier moved up to fourth place in front of Kligerman and Herbst. Behind, Custer, Jones, Love and Creed were racing in the top 10 as Sieg trimmed Allmendinger’s advantage to four-tenths of a second over the next three laps. Sieg would then trail Allmendinger by two-tenths of a second with 15 laps remaining.

Down to the final 10 laps of the event, Allmendinger led by a tenth of a second over a hard-charging Ryan Sieg. Sieg then drew himself into a side-by-side battle with Allmendinger through the frontstretch for the following lap, which was led by Sieg by a hair. Sieg, however, got loose through the first two turns, which allowed Allmendinger to muscle back ahead with a reasonable gap. Amid his slip-up, Sieg retained the runner-up spot as he trailed Allmendinger by half a second over the next lap while Allgaier trailed in third place by a second.

Then with seven laps remaining, the caution flew due to Sammy Smith stalling his No. 8 Pilot Flying J Chevrolet Camaro due to a power issue in the backstretch. By then, Allmendinger was leading by three-tenths of a second over Ryan Sieg while Allgaier was trailing the lead by less than a second.

The start of the next restart period with two laps remaining featured Allmendinger receiving a push from Allgaier from the inside lane as he muscled his No. 16 Modern Day Garage Chevrolet Camaro ahead and retained the lead through the frontstretch. Allmendinger would proceed to lead through the first two turns and the backstretch while Ryan Sieg, Allgaier, Chandler Smith and the rest of the field followed suit.

When the white flag waved and the final lap started, Allmendinger remained in the lead by a tenth of a second over Ryan Sieg while Allgaier followed suit by three-tenths of a second. Sieg would slightly close in to Allmendinger’s rear bumper between the first two turns and the backstretch despite the latter retaining the top spot. Sieg then tried to reduce the gap even more for a final charge through Turns 3 and 4, but it would not be enough as Allmendinger cycled back to the frontstretch and claimed his first elusive checkered flag of the 2024 Xfinity Series season by a tenth of a second over Sieg.

With the victory, AJ Allmendinger, who is set to return to the NASCAR Cup Series division with Kaulig Racing in 2025, notched his 18th career win in the Xfinity Series, his second at Las Vegas and his first since winning at Nashville Superspeedway in June 2023. He also recorded the 17th Xfinity victory of the season for the Chevrolet nameplate, the fourth for Kaulig Racing and the first for the organization’s No. 16 entry led by crew chief Alex Yontz.

Above all, Allmendinger became the first Playoff contender to secure one of four berths into this year’s Championship 4 round, where he will contend for his first Xfinity Series championship at Phoenix Raceway in three weeks.

“I absolutely love these guys and girls at Kaulig Racing,” Allmendinger, who made the Championship 4 round for the second time in his career, said on the CW Network. “It’s been such an up and down [season], but what I love about them is we stick together. We keep fighting. First of all, happy birthday, [team owner] Matt Kaulig! The boss’ birthday! I told you I was getting you a trophy! Let’s go, man! I love you! [My family] see how much I care and I put it on myself. What a way to get to Phoenix after a year that we’ve had. Let’s go win a championship! Let’s go!”

As Allmendinger celebrated both a victory and a championship berth in Victory Lane with his team, Ryan Sieg, who made his 364th career start in the Xfinity Series at Las Vegas, was left disappointed on pit road after settling in a career-best second place for the fifth time in his career and for a second week in a row.

“[It] Just sucks to finish second again with a great car like we had earlier in Texas,” Sieg said. “One of these days, it’s gonna go our way. We brought a car as fast as Xfinity Internet, but we didn’t get in Victory Lane.”

Justin Allgaier, who led 42 laps and won the second stage period, came home in third place ahead of Playoff contender Chandler Smith and Parker Kligerman. Playoff rookie Jesse Love finished in sixth place while Riley Herbst, Stage 1 winner Cole Custer, Sheldon Creed and Austin Hill finished in the top 10.

With six of eight Playoff contenders finishing in the top 10 on the track, the remaining Playoff contenders that included Sam Mayer and Sammy Smith settled in 14th and 32nd, respectively.

There were 13 lead changes for nine different leaders. The race featured seven cautions for 31 laps. In addition, 24 of 38 starters finished on the lead lap.

Results.

1. AJ Allmendinger, 102 laps led

2. Ryan Sieg, two laps led

3. Justin Allgaier, 42 laps led, Stage 2 winner

4. Chandler Smith

5. Parker Kligerman, one lap led

6. Jesse Love, three laps led

7. Riley Herbst, four laps led

8. Cole Custer, 31 laps led, Stage 1 winner

9. Sheldon Creed

10. Austin Hill

11. Corey Heim

12. Daniel Dye

13. Aric Almirola

14. Sam Mayer

15. Josh Williams

16. Matt DiBenedetto

17. Brandon Jones, 11 laps led

18. Jeremy Clements

19. Anthony Alfredo

20. Kyle Weatherman

21. Brennan Poole

22. Parker Retzlaff

23. Myatt Snider

24. Jeb Burton

25. JJ Yeley, two laps down

26. Kyle Sieg, two laps down

27. Dylan Lupton, three laps down

28. Ryan Ellis, three laps down

29. Garrett Smithley, three laps down

30. Joey Gase, three laps down

31. Blaine Perkins, three laps down

32. Sammy Smith, four laps down, five laps led

33. Taylor Gray, four laps down

34. Ryan Vargas, four laps down

35. Akinori Ogata, five laps down

36. Dawson Cram, eight laps down

37. Leland Honeyman – OUT, Electrical

38. Shane van Gisbergen – OUT, Fuel Pump

*Bold indicates Playoff competitors

Playoff standings

1. AJ Allmendinger – Advanced

2. Justin Allgaier +32

3. Cole Custer +16

4. Chandler Smith +8

5. Austin Hill -8

6. Jesse Love -13

7. Sam Mayer -23

8. Sammy Smith -53

The second Round of 8 event in the 2024 NASCAR Xfinity Series Playoffs is set to occur at Homestead-Miami Speedway in Homestead, Florida, for the Credit One NASCAR Amex Credit Card 300. The event is scheduled to occur next Saturday, October 26, and air at 4 p.m. ET on the CW Network.