TexasCHLforum.com

There is no legal definition in the TPC (AFAIK), and the only reference I have ever found was a federal definition, as defined by the olympic committee. In that case, whether a specific athlete is professional or amateur is defined by the governing body for that sport.

That said, it is generally agreed that a sport where the players are paid to play as a source of income in contest is considered professional. This includes just about every rodeo (most are PRCA or similarly affiliated), minor league teams (such as AAA baseball or minor league hockey, aka the Austin Ice Bats). Pretty much every fair and rodeo event I'm aware of charges separate admission for the rodeo itself, and the rodeo arena premises are off-limits, but the fair grounds are not (barring 30.06 posting at a non-government owned venue). As far as roller derby, none that I know of consider themselves professional. They are largely player-run and roller derby is not a real source of income. It is more along the lines of an exhibition amateur sport. Admission does not factor in, IMO.