The 23rd annual Cheaha Challenge Gran Fondo starts on the Jacksonville State University campus on Sunday. JSU and the City of Jacksonville will co-host the Challenge, which begins and ends at Pete Mathews Coliseum for the second straight year. 2015 Ride Director Brooke Nelson says it is a great attraction. Nelson adds the Cheaha Challenge Gran Fondo Century & ULTRA provide a variety of distance choices and the ULTRA provides 124 miles. She says the ULTRA is for experienced riders only. Nelson says online registration for the Cheaha Challenge Gran Fondo is open on USA Cycling. Complete race details are available on the Cheaha Challenge website at cheahachallenge.com.