Professional bicyclists race through the streets of downtown Wilmington at speeds that reach 35mph during the Wilmington Grand Prix, one of the premier criterium-style bike races on USA Cycling’s National Racing Calendar. On Sunday, the Wilmington Gran Fondo allows pros and amateur cyclists the opportunity to ride a 100-kilometer course through 13 cultural attractions of the Brandywine Valley. (Not up for 100K? Ride with the governor along a similar but shorter 24-kilometer route.)