Fellow defending champion Sexton leads the way in eastern region.
Supercross series regular sustains spinal injury during training.
'Offence mentality' for Geico Honda rider with championship on the line.
Select appearances could be on the cards for next year.
450SX red plate-holder will have to wait longer in bid to clinch title.
Final round of 250SX a must-win for Monster Energy Star Yamaha rider.
Salt Lake City 6 another classic in penultimate round of Supercross.
Commanding ride from defending champion sets up title defence.
Defending champion Sexton leads the way as 250SX East series resumes.
450SX leader could wrap series up with a round to spare on Wednesday.
Strong showing at SLC5 for Rocky Mountain KTM WPS rider.
Monster Energy Pro Circuit Kawasaki rider turns attention to outdoors.
World championship newcomer signed for another two seasons.
250SX West lead narrowed down to seven points with one round to go.
Battle for fourth overall in the standings continues with Barcia.
Supercross title rivals come together off the start on Sunday.
Young Australian recalls remarkable ride to third place at SLC5.
Tomac takes another step closer toward maiden Supercross crown.
Rookie Jett Lawrence breaks through for first 250SX West podium.
Red plate-holder Ferrandis fastest qualifier overall in 250SX West.
Problems continue for Team Honda HRC contender in Utah.
Supercross potential clear despite mixed showing for Australian.
Broken front-end the cause of non-finish on Wednesday.
Error costs Geico Honda newcomer of 250SX West higher finish.
250SX West champion still taking title defence one race at a time.
Up-trending conclusion to the season in Utah has been impressive.
Supercross championship leader salvages third at round 14.
KTM-mounted champion climbs to second in the 450SX standings.
Runner-up result increases advantage of red plate-holder Ferrandis.
