There are six competitive waves of competition, with the Open and Masters scoring and awards for Age Groups within each:
*  Open Men -- ALL ages, categories by M/F ages 0-11, 12-14, 15-19, 20-29, 30-39 and a non-awarded 40+
*  Open Women - All ages categories by M/F ages 0-11, 12-14, 15-19, 20-29, 30-39 and a non-awarded 40+
*  Masters Men - ages 40 years and up, categories by M/F ages 40-49, 50-59, 60-69, 70-79, 80+
*  Masters Women - ages 40 years and up categories by M/F ages 40-49, 50-59, 60-69, 70-79, 80+
*  Elite Men - qualified times at 0:04:14 mile (0:03:53 1500m) or under
*  Elite Women - qualified times at 0:04:44 mile (0:04:20 1500m) or under

Masters runners can "Race Down" in the Open category but will not be eligible for the specific Age Groups offered in those events.
Only 40+ year runners are invited to run Masters, any not-yet-40 would not be eligible for the specific Age Groups offered in those events. 

Non-Binary runners are asked to race in the "Men's" waves of the applicable Open, Masters, or Elite races so that all non-binary runners can compete head-to-head for timing-scoring-awards without confusion. 

The super fun Kids Race is a timed but not awarded Half Mile.  The finish line rewards are especially yummy!  Youngsters 12 years old and under on race day are invited to register for this one!