2005 Metcalfe raced in the AMA 125cc West Region Supercross series, earning top-five finishes at San Francisco and the Feb. 5 Anaheim, Calif., race... Raced in the AMA 125cc Motocross Championship, earning his season-best 10th-place overall finish at San Bernardino, Calif... Won the U.S. Open of Supercross 125cc title... Raced with Boost Mobile Yamaha team.

2004 Metcalfe raced in the AMA 125cc East Region Supercross series, his best result a fourth-place at Indianapolis... Contested the AMA 125cc Motocross Championship, earning a top-10 overall finish at Southwick, Mass... Raced with Red Bull KTM team.

2003 Metcalfe raced in the AMA 125cc East Region Supercross series, earning a third-place at Houston... He raced in the AMA 125cc U.S. Motocross Championship, best result was fifth-place overall at New Berlin, N.Y... Raced with Red Bull KTM team.