That break came early when points leader Ken Roczen failed to qualify for the main event, with Tomac ultimately picking up 15 points after a sixth-place finish.The potential was there for Tomac to possibly leave Utah with the points lead, but one section of the track bedeviled the Coloradan all day long.Eli Tomac (GEICO Honda CRF250R Supercross) says: “I started the race second but just blew the race in the whoops. It was a section that just got me almost every time around. There were a couple of passes where I got through them ok, but there were others where I got wild and out of control.”Tomac, who leads the championship with four victories, said that in order to avoid catastrophe, he dialed back the aggression until he felt more in control.Eli Tomac says: “I was like, ‘I can’t completely throw this thing away.’ I just started doubling and hopping and skipping.”Tomac fell back as far as 10th, but collected himself and rallied to cross the line sixth.The championship will now be decided next weekend at Sam Boyd Stadium in Las Vegas.Tomac’s teammate Zach Osborne also had a roller-coaster ride in the main event. Osborne was a solid second in his heat and earned the holeshot to start the main event. But he would give up the lead to a hard-charging (and eventual winner) Jason Anderson and settled into a spot where he was still competing for the podium.However, late in the race, the whoops section did their damage to Osborne as he fell into the Tough Blocks and eventually finished 12th.Zach Osbourne (GEICO Honda CRF250R Supercross) says: “I had a great day, actually. Up until I fell in the main everything was going really well. That kind of turned the whole deal. I just need to soldier-up and fight for a great finish in Vegas. I have nothing to lose and I plan to just go for it and try to get up on the podium.”The Monster Energy AMA Supercross season finale will be May 4 at Sam Boyd Stadium in Las Vegas with GEICO Honda riders having the possibility winning both the 250SX East and 250SX West titles.