08/20/2026
Looking forward to working with all of our colorado high schools, middle Schools & officials again this "2026" fall sports season!
ASO
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ASO is the primary assigner of referees for high school sporting events in the state of Colorado.
08/20/2026
07/19/2026
Colorado Summit wins vs. Thorns !! So exciting for our state !
07/09/2026
One of the all-time great sports officials in Colorado.
Michael's Mile: Meet Bob McCaslin, an umpire who is gaining local legend status Michael's Mile: Meet Bob McCaslin, an umpire who is gaining local legend status and shows no signs of slowing down.
06/21/2026
05/04/2026
#2026
04/03/2026
Lets Go Rockies!!
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Address
Centennial, CO
80015
Opening Hours
| Monday | 9am - 5pm |
| Tuesday | 9am - 5pm |
| Wednesday | 9am - 5pm |
| Thursday | 9am - 5pm |
| Friday | 9am - 5pm |