Pro OC Division - The Pro OC Division is an arena for the Elite and professional overclockers to compete. There are ?no holds barred?, so to speak, and there are (almost) no limitations on the type of hardware that can be used. This means that overclockers are invited to use the fastest, most expensive hardware on the planet including Nvidia Titan cards, and for the first time, Intel Skylake-X processors (including Core i9 chips of up to 10 cores). The only restriction is on multi-chip systems. Single CPUs and GPUs are allowed only. Here are the benchmarks that have been devised for Round 3.
According to this it looks like Titan Xp is fine but nothing bigger than a 7900X
I personally hope it stays that way.