I'm curious on how the contest went, and hope that Indiana will continue to host a Beach Wrestling State Championships on an annual basis. If so, let me know about it (robertteet@yahoo.com) and I'll make sure to post in on the SandWrestling .com website and facebook page.
The pinning rules look like the early version of the rules, nowadays a wrestler is pinned if they land on their back. The shoulders don't need to be down. "Slippery substance" wrestlers can be instructed to dry off, usually a result of sweating in the heat or applying sun blocker. Quick drying sun blockers are available.
Hope everyone had fun, and I know of some wrestlers from Michigan and Ohio that take beach wrestling seriously and might just come out to next year's event.