The 2015 Lucas Oil Pro Motocross Championship continued on with round four of the series taking place at Muddy Creek Raceway. Although it’s a recent addition to the schedule, the rural Tennessee circuit has a long history in the sport and many top racers have turned laps there during their amateur careers. Getting a National there was no easy feat, as owner’s Victory Sports completely updated the facility to meet the MX Sports requirements just a few years ago. Sure, riders still have complaints about the somewhat narrow lanes or general layout, but it makes for some damn good racing like we saw on Saturday afternoon.

This summer is shaping up to be a good one, even with the absence of Ryan Villopoto, James Stewart, and now Eli Tomac. Both championships have turned into two-man wars for the number one plate, with both expected to go to the last round before we award a final victor. Hell, to make it even better, both are international battles between Europeans (Marvin Musquin from France and Ken Roczen from German) going against Americans (Jeremy Martin and Ryan Dungey, both from Minnesota).

There was a lot to talk about in Tennessee, particularly the visit by USADA anti-doping officials on Friday and Saturday. Blood samples were collected by the top five riders in both championships (well, make it top six in the 450s because Eli Tomac is out with injury) on Friday, while the podium finishers plus one random rider were required to give a post-race urine sample. As simple as a urine test sounds, it proved not to be so easy. The guys were completely drained after the day of racing and low on fluids, which makes giving the necessary 90mL difficult. Why not chug water? The sample cannot be too diluted by water, which can mask some substances in the urine. Then you have to add in the stage fright of having an officer actually watch the urine leave your body to make sure it’s coming from your well, yourself. We’ll have more to discuss from this later in the week.

Being on the East Coast in the summer means humidity, and that was ever-present on Saturday. The air was heavy all day and put the rider’s physicality through a rugged test. It’ll only get worse the deeper we get into the summer.

We’ve got another Kickstart and plenty of content coming throughout the rest of the week, so be sure to come back daily for more updates…