Haiden Deegan Re-Signs with Monster Energy Yamaha Star Racing: 250SX, Then 450 Pro Motocross in 2026
Well, we finally have confirmation of what 2026 will look like for Haiden Deegan. The second-generation racer has signed a new, multi-year deal with the Monster Energy Yamaha Star Racing team and the PR announced his full plans for next year. Deegan will race Monster Energy AMA Supercross in the 250SX division—probably the 250SX West Division so he can run the #1 plate—before he makes the jump full-time to the premier class for the AMA Pro Motocross Championship and the SuperMotocross World Championship (SMX) Playoffs.
A lot of people have been wondering when Deegan will move to the 450cc class and contest current 450 points leader Jett Lawrence. Now, we know.
Also, a part of the announcement is that Deegan will be out of the 450 tent in supercross. Rumors are he might be in a different gear brand than team-sponsored THOR, which might be a part of this.
The two-time 250SMX Champion has three more rounds this summer in Pro Motocross as he looks to earn back-to-back 250 Pro Motocross titles. Is there a chance he races the YZ450F at the Budds Creek National finale if he wraps up his title at the penultimate round?
The following press release is from Yamaha:
Deegan Re-Signs with Monster Energy Yamaha Star Racing
Monster Energy Yamaha Star Racing’s Haiden Deegan to join the 450 team in 2026
MARIETTA, Ga. – Monster Energy Yamaha Star Racing is pleased to announce a multi-year deal with Haiden Deegan that will see him continue with their championship-winning program. The Californian has enjoyed success aboard the team’s YZ250F – going from a title-winning A-class amateur to a multi-time champion in the pro ranks – and looks to continue that success next year as he embarks on his rookie season aboard the YZ450F. In 2026, he will join the 450 team, starting the year off by making another Monster Energy AMA Supercross 250SX title run under the 450 tent, and then launching his premier class title campaign with them in Pro Motocross and the SMX World Championship Finals.
Since joining the team’s amateur program in the fall of 2021, Deegan has been a proven title contender, winning multiple national titles and going on to enjoy a stellar pro debut season with Rookie of the Year honors in both supercross and motocross, and his first 250SMX title. In just three years, the 19-year-old has amassed an impressive number of titles and race wins aboard the team’s YZ250F. In addition to earning back-to-back 250SMX titles (2023-2024), he secured the 2024 Pro Motocross 250MX Championship and the 2025 250SX West Championship a round early. He currently has seven 250SX wins, 12 250MX overall wins, and three 250SMX wins.
With three rounds remaining of the outdoor season before the SuperMotocross World Championship Finals, it’s already been a storied season for Deegan. After sealing the deal on his first 250SX title with four wins and a total of nine podium finishes, he went on to launch a formidable title defense outdoors. The reigning 250MX and 250SMX Champion has earned five overall victories and 10 moto wins thus far, giving him a comfortable 45-point lead in the 250MX Championship and a 103-point lead in the 250SMX Combined Points. As the 2025 season comes to a close, Deegan has his sights set on securing the crown in both championships to cap off a successful tenure with the 250 team.
Jim Roach – Yamaha Racing Department Manager for YMUS
“Yamaha Racing is excited to announce that Haiden Deegan has signed a multi-year contract to continue with the Monster Energy Yamaha Star Racing team. Since joining the team, Haiden has earned significant achievements, and we look forward to continuing that success as he graduates to the 450 team.”
Rich Simmons – Monster Energy Yamaha Star Racing 450 Team Manager
“We’re looking forward to having Haiden on the 450 next summer and look to continue the success he’s had in the 250 class.”
Haiden Deegan – Monster Energy Yamaha Star Racing #38
“I am pumped to re-sign with Monster Energy Yamaha Star Racing. The plan will be to race the 250 in Supercross, and then make the move to the 450 class for Motocross and SMX. I’m grateful for the opportunity and more fired up than ever. Let’s keep grinding.”
