Seems Cody made the switch to the Beta two stroke and was able to outlast Jarvis.
http://www.cyclenews.com/articles/off-road/2013/02/03/webb-outlast-jarvis-to-win-king-of-the-motos/
http://www.cyclenews.com/articles/off-road/2013/02/03/webb-outlast-jarvis-to-win-king-of-the-motos/