https://www.zephyrhillswater.com/The Professional Road Running Organization (PRRO) is an alliance of race directors who together organize and promote the PRRO Circuit, a nationwide series of premier non-marathon road racing events. The Circuit features highly competitive elite fields at each event as top athletes seek to qualify for the PRRO Super Bonus paid out at the annual PRRO Championship, which rotates among all of the events. The current Circuit features more than $330,000 in prize money overall, with $109,500 available for U.S. athletes.