Josh Grant’s rookie year came in 2004 when he rode his Amsoil Honda to tenth overall in the Motocross Lites series. Along the way, the eighteen-year-old racer earned three podium finishes. The following year was another consistent one, as he finished a solid eighth overall in the East Coast Lites Supercross series. His best finish of the series came at the physically grueling Daytona Supercross where he battled to the very last corner to earn second place. Grant would close out the year with a seventh overall in the Motocross Lites division, once again competing with the Amsoil Honda satellite team. The 2006 season established Grant as a definite title threat. He would again choose the East Coast Lites series as his battleground, and would finish a respectable third overall
The 2007 season marked Grant’s third year as a pro and he continued to show that he knew what it took to stay up front. Many expected a Supercross Lites title from Grant in 2008 and, although he was definitely a pre-season favorite, he got off to a slow start. However, once the season got going, Grant returned to his old self as he challenged front-runners Ryan Villopoto and teammate and eventual champion Trey Canard.
Grant won the 2009 AMA Supercross season opener in Anaheim, Calif. The win was his first in the premier division and the first supercross victory for the Muscle Milk/Toyota Team. On July 4, 2009, he won his first overall 450 Class motocross victory at the Buchanan, Mich. round of the series
During the 2010 motocross, Grant won a moto at Thunder Valley, but missed the last three races of the season due to an injury to his left shoulder. Earlier in the year, Grant was forced to sit out the Supercross season with an injury to his other shoulder.
Grant found himself on a new team once again in 2012, riding aboard a Kawasaki for Jeff Ward Racing. For the 2013 season, he reunites with JGRMX and former teammate, Justin Brayton.
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