The Barkin' Dog Duathlon is the first race in the 2012 Mile High Duathlon Series. All abilities are welcome! Enter one race, or Du all three!

AGE GROUP: Solo Athletes will compete against other solo athletes in their specific age/gender group, unless they choose to enter one of the special categories listed below. Male and female age groups for the Mile-High Duathlon Series are broken down as follows: Age 12-13, Age 14-15, 16-19, 20-24, 25-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60-64, 65-69, 70-74, 75-79, 80-84, 85-89.

ELITE: Athletes desiring to compete for the prize money awarded to top finishers must register as Elite. A PRO LICENSE IS NOT REQUIRED to enter the elite wave, however competitors in the Elite wave will not be eligible for age group awards.

CLYDESDALE & ATHENA: Male Athletes Weighing 200 pounds or more may choose to compete in the Clydesdale division in place of their age group. Awards are presented to Clydesdales age 39 & under, and age 40 & over. Women weighing 150 pounds or more may choose to enter the Athena division in place of their age group.

FAT TIRE (mountain bike) DIVISION: Many newcomers to multisport as well as a dozen or so of our regular participants, choose to compete on their mountain bikes. In fact, we often see nearly 10 percent of our participants on their mountain bikes at each of the three races in the series. Athletes who race on a mountain bike or hybrid with a minimum tire width of 1.9 can choose to compete in the Fat Tire Division in place of their standard age group. Yes, you will still ride on the same paved route as the road bikers, but this division will even the playing field.

RELAY TEAMS: Relay teams, composed of 1 runner and one cyclist may participate in one of three categories - Male, Female, or Coed. Single Sport Athletes -- Let's See What You've Got. Pair up with your favorite runner or cyclist and compete! Awards are presented to the top-3 relay teams in each category at each of the individual series events.

TANDEM DIVISION: This fun, new division is in response to many tandem couples who inquire about the series every year. In the tandem division, one or both team members will complete the run courses, and both will team-up for the ride.