Kailub Russell Captures 2013 XC1 National Championship At AMSOIL Ironman GNCC. Heading into the final round of the 2013 AMSOIL Grand National Cross Country Series, only two points separated Factory FMF/KTM teammates Kailub Russell and Charlie Mullins in the National Championship standings. The 19th running of the AMSOIL Ironman GNCC set the stage for an epic finale as it was a winner-take-all affair at the AMSOIL Ironman GNCC finale and it was Russell who prevailed, clinching his first career XC1 Overall National Championship after three-hours of close racing competition.