I really think it is a higher percentage than what you have, but I bet someone could find the number on what clubs are 50-60 miles from Wichita.
Here it goes...
Of the 1460 state qualifiers (SQ's) this year, 23% (340) are within 60 mi of Wichita. Of that same 1460, 17% (249) are within 30 mi of Wichita.
Holding the tournament in Topeka makes the average state qualifier this year travel 156 mi -- 227,000 mi travelled by state qualifiers alone. If the tournament were held in Wichita this year, the average wrestler would travel 137 mi -- 200,000 mi travelled by state qualifiers. So, that is about 20 less miles to travel to Wichita for the average state qualifier this year, and 27000 less miles travelled by state qualifiers total.
Assumptions (some people don't like them, but I do):
1) SQ's live reasonably close to each club's mailing address
2) SQ's will travel along the routes outlined by mapping software
3) SQ's will stay at hotels that are evenly distributed throughout each site's city (Wichita or Topeka)
4) Trackwrestling is correct on each club's qualifiers -- clubs such as 'Caney' and 'Caney Wardogs' that each qualified 4 wrestlers are actually 2 clubs
5) I haven't fat-fingered too many things
Conclusion: Smith Center is the center of the U.S.
If you want to see my data, let me know.