I competed last weekend in the beginner's Muay Thai Nationals. Knees and elbows to the head are not allowed, but everything else, including elbows and knees to the body, sweeps, and clinching is allowed.
It's supposed to be light, but almost everyone fights at near max power, and the referees rarely warn or deduct points for it.
Anyways, I'm in the red. Enjoy and let me know what you guys think :)
P.S. I don't really know which round is round 1 and which is round 2, forgot to mark the footage