Justin Cooper (born August 31, 1997) is an American professional motorcycle racer who competes in AMA Supercross and Motocross. He is the 2021 AMA Supercross 250cc West champion & was a member of the winning USA team at the 2022 Motocross Des Nations.
Career Justin Cooper began racing while growing up in Cold Spring Harbor, New York, where seasonal weather limited year-round training. Unlike many top amateur riders, he did not relocate for winter training and attended college briefly after high school. Cooper won four AMA Amateur National Motocross Championships at the Loretta Lynn’s Ranch. His 2017 titles in the Open Pro Sport and 250 A classes gained attention and led to his professional debut with CycleTrader.com/Rock River Yamaha at the final rounds of the 2017 Lucas Oil AMA Pro Motocross Championship.
In 2021, Cooper won the 250SX West Region championship in the Monster Energy Supercross series, while riding for Monster Energy Yamaha Star Racing. The same year, He also competed in the Lucas Oil Pro Motocross Championship 250 Class, finishing second overall behind Jett Lawrence.
In the 2025 Monster Energy AMA Supercross season, Cooper finished third overall in the 450SX class, accumulating 281 points over the 17-round series without securing a main event win. Cooper recorded multiple top-five finishes, including a second place in Indianapolis and a third place in the final round in Salt Lake City.
AMA Supercross/Motocross results Year Rnd1 Rnd2 Rnd3 Rnd4 Rnd5 Rnd6 Rnd7 Rnd8 Rnd9 Rnd10 Rnd11 Rnd12 Rnd13 Rnd14 Rnd15 Rnd16 Rnd17 AverageFinish PodiumPercent Place 2017 250 MX OUT OUT OUT OUT OUT OUT OUT OUT OUT 5 11 11 - - - - - 9.00 - 21st 2018 250 SX-W 9 OUT OUT OUT OUT OUT - - - - - OUT OUT - - OUT OUT 9.00 - 26th 2018 250 MX 5 6 3 3 10 15 5 2 7 8 7 5 - - - - - 6.33 25% 3rd 2019 250 SX-E - - - - - 3 2 4 5 3 3 - - 3 - 3 8 3.78 67% 2nd 2019 250 MX 2 2 2 9 1 3 3 7 3 4 3 2 - - - - - 3.41 75% 3rd 2020 250 SX-W 1 2 2 9 3 3 - - - - - - - 4 6 - 7 4.11 56% 2nd 2020 250 MX 8 11 4 9 7 5 2 1 12 - - - - - - - - 6.56 22% 5th ~2021 250 SX-W - - - - - - - 1 4 4 5 1 2 1 2 - 9 3.22 55% 1st 2021 250 MX 3 1 3 2 3 3 3 2 3 3 3 1 - - - - - 2.50 100% 2nd 2022 250 MX 12 2 4 5 7 3 4 2 2 5 6 3 - - - - - 4.58 42% 4th 2023 450 SX OUT OUT OUT 7 7 10 9 6 OUT OUT OUT OUT OUT OUT OUT OUT OUT 7.80 0% 22nd 2023 250 MX 5 2 2 OUT 3 2 2 2 3 2 4 - - - - - - 2.70 80% 2nd 2024 450 SX 8DNQ 14 8 9 11 7 6 5 10 8 9 8 6 10 6 2 7.81 6% 6th 2024 450 MX 6 4 3 5 4 5 3 5 6 10 5 - - - - - - 5.09 18% 4th 2025 450 SX 7 11 6 13 4 5 4 4 2 6 6 11 6 4 3 3 3 5.76 24% 3rd 2025 450 MX 5 3 4 5 4 3 10 6 4 5 3 - - - - - - 4.73 27% 4th 2026 450 SX 6 ANA 6 SDI 10 ANA 9 HOU 4 GLE 3 SEA 5 ARL 12 DAY 4 IND 4 BIR 4 DET 2 STL 7 NAS 3 CLE 13 PHI 13 DEN 2 SLC 6.29 24% 5th 2026 450 MX 4 FOX 13 HAN OUT THU OUT HIG OUT RED OUT SOU OUT SPR OUT WAS 9 UNA OUT BUD OUT IRN - - - - - - 8.67 - 19th SMX Results Year Rnd1 Rnd2 Rnd3 AverageFinish PodiumPercent Place 2023 250 SMX 9 CON 12 CHI 4 LAC 8.33 - 6th 2024 450 SMX 6 CON 23 FOR 6 LVE 11.67 - 8th 2025 450 SMX 11 CON 8 STL 5 LVE 8.00 - 5th 2026 450 SMX OUT COL OUT LOS OUT RID - - -
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