Blake,
We are between seasons right now thus why no one has replied promptly. The tscec.org website will have quite a bit of information. The 14-15 season will start in about September and go until approx April with about two enduros per mo on avg. Races are run pretty much all over Texas as well as OK and LA and three different divisions to make it easier geographically to catch races in your "vicinity". You can compete in any of the divisions or catch individual races whenever. Hope this is somewhat helpful. I'm not as familiar with the XCD side of TSCEC.
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Whiskeyta Falls, TX