SEATTLE (April 8, 2017).

 Monster Energy AMA Supercross, an FIM World Championship, returned to the Pacific Northwest on Saturday with its largest audience ever at CenturyLink Field for Round 14 of the 17-race season. A raucous crowd of 56,063 was on hand for the series' first visit since 2014, where Team Red Bull KTM Factory Racing's Marvin Musquin cruised to his second career win. The battle for the hotly contested 450SX Class title intensified even further as Ryan Dungey and Eli Tomac now sit tied atop the championship standings following adventurous races for each rider. In the return of the Western Regional 250SX Class Championship, Yamalube/Star Racing Yamaha's Aaron Plessinger broke through for his first win of the season.

The drama in the 450SX Class Main Event started immediately off the start when Dungey and his Team Red Bull KTM Factory Racing machine were collected in a first-turn crash with RCH/Yoshimura/Suzuki Factory Racing's Justin Bogle and Autotrader/Monster Energy/Suzuki's Justin Barcia. Dungey remounted at the tail end of the field in 22nd place.

Out front, RMATV/MC-WPS-KTM's Davi Millsaps earned the SupercrossLive.com Holeshot, but was quickly passed by Rockstar Energy Husqvarna Factory Racing's Jason Anderson and Musquin. Anderson took control of the race briefly, but then gave way to Musquin and settled into second ahead of Millsaps. Tomac endured through a tough start of his own and completed the opening lap aboard his Monster Energy Kawasaki in 10th, while Dungey moved up a couple spots to officially start 19th.

A deteriorating track surface allowed Musquin to move out to a comfortable lead in the opening laps while Anderson asserted himself into second and Monster Energy/Yamalube/Chaparral/Yamaha Financial Services/Yamaha Factory Racing rookie Cooper Webb moved past Millsaps into third. While the leaders settled in all eyes were on both Dungey and Tomac, with each fighting their way through the field quickly despite the conditions.

Tomac put himself into podium contention on Lap 4 when he gained three positions to move from seventh to fourth, just behind Webb. The pace of the Kawasaki rider ultimately forced Webb to increase his pace, which allowed both riders to close in on Anderson. Tomac was able to pass Webb for third briefly, but the rookie responded and ultimately took second away from Anderson a short time later on Lap 9. Tomac followed into third but crashed out of the spot the following lap, dropping to fourth just ahead of Millsaps in fifth. As this unfolded Dungey broke into the top 10 in his continued move through the field.

Webb held onto second firmly for a handful of laps but started to lose ground to Anderson. Behind them Tomac was overcoming a deficit of more than six seconds to get both riders back within reach. On Lap 16 Anderson dove to the inside of Webb coming out of a corner, forcing the rookie to alter his line slightly and make a mistake that would take him to the ground and out of contention. Tomac slipped by unscathed to get back into a podium spot in third. Webb's misfortune also benefitted Dungey, who moved into fifth.

Tomac's forward progression culminated on Lap 18 when he passed Anderson for second, which also put him into the points lead as time ran out on the Main Event clock, leading to the final lap of competition.

Musquin handily controlled the Main Event to lead every lap and cross the line 4.7 seconds ahead of the field, which mirrored the effort of his debut victory earlier this season at AT&T Stadium in Arlington, Texas.