I was thinking that the tunes you listed have to do with clogging, flat-footing or buck dancing contests and not fiddle contests. It could also be club clogging/square dance competitions. If so, these are played at a 140+ bpm tempo. (More likely 150-160 bpm!) The music for many of these types of contests is recorded - no live bands.
If it were contest fiddling, I would expect, along with Steve, that there would be many other common tunes, e.g. Sally Johnson, Leather Britches, Bill Cheatham, Cotton Patch Rag (or some other rag), Over The Waves Waltz, Festival Waltz, Anniversary Waltz or some other popular waltz.