[5] After finishing twelfth overall, which included a tenth place in the second race, Brown made his full-time debut with the team during the COVID-19 pandemic-impacted 2020 season.
He missed the opening two rounds of the 250SX East class of the 2020 AMA Supercross Championship due to injuring a nerve underneath his shoulder blade.
At the fifth round of the 2020 AMA National Motocross Championship, Brown sustained a knee injury which left him ending his first full season on the side-lines.
[10] He stayed injury free and completed a full season of the AMA Motocross Championship in 2022, scoring four top-ten overall results to finish tenth in the final standings.
Brown missed the last two rounds of the 2023 AMA Supercross Championship due to a hand injury and finished the 250SX West class eighth in the final standings.
At the season ending 2024 SuperMotocross World Championship final rounds, Brown was able to take his first professional victory at the last event in Las Vegas.