As of last Monday, Missouri had a 17 RPI. That was before dropping a 5 set thriller to eventual SEC Champion Texas A&M and dominating South Carolina. I'm not sure there will be much movement when the rankings are released tomorrow, which will either explain why Columbia isn't hosting one of these sub-regionals or raise questions as to why they aren't.
Either way, beat RPI #40 Missouri State and add the next chapter to the post-Big 12 book on the Border War. A book that has seen Missouri unbeaten so far.