GK Racing (formerlyClay Greenfield Motorsports andAlger Motorsports) is an American professionalstock car racing team that competes part-time in theNASCAR Craftsman Truck Series, fielding the No. 95Chevrolet Silverado forClay Greenfield, who is also a co-owner of the team. The other co-owners of the team are Greenfield's wife Tandra, a formerNFL cheerleader, and Jordan and Theresa Kiss, who own Backyard Blues Pools, one of the team's sponsors.^[1] The team was previously co-owned byBilly Alger, who drove for the team in what is now theARCA Menards Series.

The team debuted as Alger Motorsports, running a part-time schedule in the2011 NASCAR Camping World Truck Series season. After failing to qualify at Daytona, the team debuted inthe spring race atTexas.Wayne Edwards drove the team's No. 68 truck atChicago but failed to qualify.

In 2012, the team fielded the No. 68 forClay Greenfield.

In 2013, the team was renamed to Clay Greenfield Motorsports. The team started out strong by earning the fastest time at theDaytona International Raceway during practice. Greenfield's 2013 season was most memorable in the last chance qualifier at theEldora Speedway when he put up a hard fight againstNorm Benning to qualify for the race.^[2] The season concluded with six starts with a best finish of thirteenth. The next few seasons were based on a part-time effort whenever funding was available as starts have mainly been attempted at superspeedways.

The team also fielded a part-timeARCA Racing Series team, the No. 70Chevrolet SS, for team co-owner Billy Alger in2015 and2016. Sometime after this, Alger would leave the team, making Greenfield its sole owner.

Greenfield's team intended on running eight races in2020. However, the team ended up running nearly the full season, which was due to the fact that after the two month break in the season due to theCOVID-19 pandemic, the field size for the series was expanded from 32 to 40 trucks due to the absence of qualifying. Also that year, CGM hiredNASCAR on Fox studio commentatorJeff Hammond to come out of retirement and crew chief the truck in its part-time schedule of races.^[3]Bobby Reuse was also scheduled to drive the No. 68 at the Daytona RC in a partnership withJordan Anderson Racing, but failed to do so due to the chassis not properly admitted.

For2021, Greenfield announced that his team would run the full season in the Truck Series for the first time. However, Greenfield himself would only run three races while the team seeks funded drivers who bring sponsorship to run the remaining nineteen after the team's primary sponsor, Rackley Roofing, left the team to partner withWillie Allen to form a new team,Rackley WAR.^[4] CGM only ended up attempting four races that year, all with Greenfield driving.

The team did not attempt any races in 2022 and Greenfield drove part-time forCook Racing Technologies in their No. 84 truck instead with his own team's former crew chief, Tucker Wingo, also moving over to crew chief him at that team.

In 2012, the team fielded the No. 86 forScott Riggs andBlake Koch in astart and park effort.

In 2023, Greenfield re-started his own team with new co-owners Jordan and Theresa Kiss, who own Backyard Blues Pools, one of the team's sponsors and also one of Greenfield's sponsors when he drove the No. 84 truck for Cook Racing Enterprises. As a result, the team was renamed GK Racing, which stands for each of their last initials.^[1]

The team also fielded a part-timeARCA Racing Series team, the No. 70Chevrolet SS, for team co-owner Billy Alger in2015 and2016. Sometime after this, Alger would leave the team, making Greenfield its sole owner.

• GK Racing owner statistics at Racing-Reference

• NASCAR teams

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• Short description matches Wikidata