The 2026 OnlyBulls Green Flag 150 at St. Petersburg was a NASCAR Craftsman Truck Series race held on Saturday, February 28, 2026, at the St. Petersburg street circuit in St. Petersburg, Florida. Contested over 80 laps on the 1.80-mile-long (2.897 km) asphalt street circuit, it was the third race of the 2026 NASCAR Craftsman Truck Series season, and the inaugural running of the event.
In an action-packed race, Layne Riggs, driving for Front Row Motorsports, dominated the later portions of the event by winning the second stage and leading a race-high 41 laps after starting from the rear of the field. He eventually held off a charging Ben Rhodes and Ty Majeski in the final few laps on fuel mileage to earn his sixth career NASCAR Craftsman Truck Series win, and his first of the season. Majeski finished second, while Rhodes finished third. Chandler Smith and Kaden Honeycutt rounded out the top five, while Landen Lewis, Andrés Pérez de Lara, Daniel Hemric, Colin Braun, and James Hinchcliffe rounded out the top ten.
The St. Petersburg street circuit is a 1.800-mile long street circuit in St. Petersburg, Florida. The track is notable for hosting the Grand Prix of St. Petersburg, the IndyCar Series season-opening race annually. On August 20, 2025, St. Petersburg was announced as a race on the 2026 schedule, as a doubleheader with the IndyCar Series.
This race will be historic, as this will be the first time the Craftsman Truck Series will race on a street course. Many IndyCar regulars, such as three-time Indianapolis 500 winner Dario Franchitti made his return to the series since 2007, as well as James Hinchcliffe, who made his debut race in the Truck Series.
OnlyBulls was announced as the title sponsor for the race on February 18.
The first and only practice session was held on Friday, February 27, at 4:00 PM EST. Originally scheduled for 50 minutes, the session was cut short due to inclement weather.
Kaden Honeycutt, driving for Tricon Garage, set the fastest time in the session, with a lap of 1:18.922 seconds, and a speed of .
Qualifying was originally scheduled to be held on Friday, February 27, at 5:05 PM EST, but was cancelled due to inclement weather. Connor Mosack, driving for Spire Motorsports, was awarded the pole position as a result of NASCAR's pandemic formula with a score of 1.300.
No drivers failed to qualify.
Stage One Laps: 20
Stage Two Laps: 20
Stage Three Laps: 40