USA Cycling announced today the 18 elite and junior athletes that will represent the United States at the UCI BMX World Championships in Rock Hill, SC. eSports can be the spark for the International Olympic Committee to Sunday 18 June EDT Last modified on Monday 3 July. USA BMX Tarheel Nationals Race Report. June 23, Its Summer time in the south so you know that means high temps and lots of humidity. Luckily a.