Truck Series Debut
Kvapil made his first NASCAR national-series start on September 17, 2026, in the UNOH 250 at Bristol Motor Speedway. He drove the No. 76 Freedom Racing Enterprises Chevrolet, sponsored by Nor-Cal Equipment Rentals.
Qualifying was cancelled and Kvapil started 34th. He completed 166 laps before an engine failure ended his night. He was scored 35th of 36 trucks.
Late Model Stock
Kvapil drives the No. 88 JR Motorsports Chevrolet on the CARS Late Model Stock Tour, with his father, Travis Kvapil, as crew chief. He won the 2023 CARS Tour Pro Late Model championship and won the 2025 Late Model Stock season finale at North Wilkesboro Speedway.
In 2026 he won the Late Model Stock opener at Southern National Motorsports Park on February 28, charging from 29th, and won the Tootsie's Music City Showdown at Nashville Fairgrounds Speedway on April 11. He led the Late Model Stock standings when he made his Truck Series debut.
Family
Kvapil is the son of Travis Kvapil, the 2003 NASCAR Craftsman Truck Series champion. His older brother, Carson Kvapil, drives the No. 1 JR Motorsports Chevrolet in the NASCAR O'Reilly Auto Parts Series.