First CST Contingency Plan Awards Cash Prizes in ATVMX SeriesApril 24, 2018CST is going full-throttle with its first-ever contingency program, offering generous cash prizes for winners and podium finishers in AMSOIL GNCC Racing, WORCS, the ATV MX National Championships, and the AMA District 37 Big6 Grand Prix Series.
Wienen Takes First Overall in TexasApril 18, 2018This past weekend the AMA ATV MX Pro National Championship series took to Underground MX in Kemp, Texas for another round of racing where Wienen Motorsports' Chad Wienen took home his second overall win of the season, with a 2-1 finish on the day.
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Photo Gallery: Underground YouthApril 18, 2018Images from Underground youth races.
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Photo Gallery: Underground AmateurApril 18, 2018Images from Underground amateur races.
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Photo Gallery: Underground ProApril 18, 2018Images from the Underground MX pro races.
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ATVision: Rd 3 Underground MXApril 17, 2018Video highlights from round 3, Underground ATVMX National.
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Chad Wienen Earns Second Win at Underground ATVMX NationalApril 16, 2018Round three of the 2018 ATV Motocross National Championship (ATVMX) Series presented by CST Tires, an AMA National Championship, headed deep into the lonestar state for a showdown that would rival any old western tale ever told. With a crazy swing in temperatures preceded by a night filled with high winds and heavy rains, the racers would be very skeptical as to how well the track at Underground MX would shape up.
![Joel Hetrick Looks to Earn Second-Straight Win as ATV Motocross National Championship Travels to Underground MX Park]()
Joel Hetrick Looks to Earn Second-Straight Win as ATV Motocross National Championship Travels to Underground MX ParkApril 12, 2018The 2018 ATV Motocross National Championship (ATVMX) presented by CST Tires, an AMA National Championship, continues in the Lonestar State this weekend, April 14 and 15. America’s longest running ATV series heads to Underground MX Park (UGMX) in Kemp, Texas for the third race of the 10-round circuit.
Competition Bulletin 2018-4: Foreign Rider Eligibility RequirementApril 10, 2018Foreign Rider Eligibility Requirement
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Site Lap: Don't Mess With TexasApril 4, 2018Next weekend, April 14-15, the ATVMX Racin' Nation heads to Underground MX for the 2018 Texas Memorial ATV National! I guess it's true what they say, everything is bigger in Texas... Because the Purse Payout for this round is BIG (see total purse breakdown by clicking HERE).
![MAVTV Television Schedule Announced for 2018 ATV Motocross National Championship]()
MAVTV Television Schedule Announced for 2018 ATV Motocross National ChampionshipMarch 30, 2018The ATV Motocross National Championship (ATVMX) presented by CST Tires, an AMA National Championship is pleased to announce the 2018 MAVTV cable television broadcast schedule.
Nick Moser Victorious in South of the Border ATV MotocrossMarch 30, 2018Kyler Lenz Motorsports/Amped Apparel rider Nick Moser swept the motos in the 25+ class and scored the overall victory during the AMA ATV Motocross National Championship race at South of the Border MX in Hamer, SC. Sam Rowe was running competitively in the Pro class when an overheating issue took him out of contention.
