Justin Myrl Allgaier[2][3] (born June 6, 1986) is an American professional stock car racing driver.

[citation needed] He began stock car racing at thirteen in the UMP Late Model Series, where he competed for three seasons.

At the age of sixteen, he made his debut in the ARCA Re/Max Series at the Illinois State Fairgrounds Racetrack, driving the No.

He also won two features in a midget car at Angell Park Speedway and placed 3rd in the Chili Bowl behind Tony Stewart and J. J. Yeley.

Because of the acquisition of Penske Racing sponsor Alltel by Cellco Partners, a joint venture of Verizon and Vodafone, their Sprint Cup sponsorship was legislated out of the sport by NASCAR's agreement with Sprint in that series to prohibit sponsorship by other wireless telephone companies.

During the 2009 NAPA 200 in Montreal, Allgaier had the fastest car early in the race and while running sixth, tried to make a pass on Canadian road ace Ron Fellows and Kyle Busch.

In 2010, Allgaier had a similar season but would win his first Nationwide Series race at Bristol Motor Speedway on March 20 and improve to fourth in the standings at the end of the year.

12 due to lack of sponsorship, and Allgaier would remain in the Nationwide Series, moving to Turner Motorsports where he would drive the team's new No.

In the inaugural STP 300 at Chicagoland Speedway after passing Carl Edwards who ran out of fuel on the last lap, Allgaier won the race.

[11] In January 2014, it was announced that Allgaier would compete full-time for Rookie of the Year in the 2014 NASCAR Sprint Cup Series, driving for the now-renamed HScott Motorsports in the No.

On October 2, 2015, it was announced that Allgaier parted ways with HScott Motorsports, and was replaced in 2016 by Clint Bowyer.

Allgaier finished 30th in the Cup Series standings, one spot short of matching his career-best season result.

46 Chevrolet at the Bass Pro Shops NRA Night Race, replacing former HScott teammate Michael Annett after he suffered from flu-like systems.

[16][17] Even though he went winless throughout the whole season, he ended up finishing 3rd in the final standings behind Elliott Sadler and eventual champion Daniel Suárez.

He led late in the DC Solar 200 at Phoenix and took the lead from Austin Dillon with less than 30 laps to go and held off Ryan Blaney on a final restart to win his first race in five years.

Allgaier finished seventh in his sole Porsche GT3 Cup Brasil start, at the season-ending Autodromo Jose Carlos Pace Interlagos 500 km round as a co-driver for Paludo.

At Watkins Glen International in August, Ross Chastain sent Allgaier spinning off track in the bus stop section of the circuit.

[20] Again, Allgaier made starts in the Porsche GT3 Cup Brasil Endurance rounds as Paludo's co-driver when dates did not conflict.

At Goiânia, Allgaier led during his stint midway through the 300 km race, but after handing the car back to Paludo for the final stint, Confederação Brasileira de Automobilismo officials black-flagged the team for Allgaier violating track limits when only two tires were below the pit entrance line; series rules require all four tires below it.

[23] Although he recorded stage wins at Las Vegas,[24] Phoenix,[25] Bristol,[26] and Pocono, he struggled with poor luck throughout the first half of the season.

[31] He finished out the season 6th in points, but due to good runs in the final races and misfortunes of his competitors, he made the Championship 4 for the sixth time in his career.

However, after an 8th-place finish at Phoenix, he picked up his first win at Atlanta Motor Speedway beating out Cup champion Martin Truex Jr.

[34] In June, Allgaier joined the Stadium Super Trucks' practice and qualifying at Mid-Ohio Sports Car Course (where they were supporting the Xfinity Series).

[35] On June 27, Allgaier was called on again as a substitute replacement in a Cup Series race, this time for Justin Haley in the Spire Motorsports No.

[37] Allgaier beat Sheldon Creed by 0.005 seconds in double overtime at the Daytona night race.

[44] Allgaier finished second to Riley Herbst at Phoenix and claimed his first Xfinity Series championship after 14 years of struggle.

[45] On May 26, Allgaier was called on as a relief driver in the Cup Series again, starting the Coca-Cola 600 in place of Kyle Larson in the Hendrick Motorsports No.

[47] On January 15, 2025, JR Motorsports announced that they would be making their Cup Series debut in the Daytona 500, with Allgaier behind the wheel of the No.

[50] After winning the 2024 NASCAR Xfinity Series championship, December 14 is recognized as "Justin Allgaier Day" in Springfield, Illinois.

* Season still in progress 1 Ineligible for series points (key) (Bold – Pole position awarded by qualifying time.