"666" is, according the the bible, the mark of the beast. Thacker couldn't bring herself to run while wearing "666" because of her faith. So, she and her coach tried to get a different number. They asked three different officials. They were told no three different times.

"I didn't want to risk my relationship with God and try to take that number," said Thacker.

http://www.lex18.com/news/whitley-c…