Out with the Old Half Marathon

DEC
19
2026
A year-end race at Sunset Regional Park offering 5K, 10K and half marathon on mostly flat, paved History Walk trails with recycled shirts and medals.
Sat 19 Dec 2026
13 miles 10 kilometers 5 kilometers

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Out with the Old

Out with the Old is a year-end Calico Racing event held at Sunset Regional Park on the paved History Walk trails in Las Vegas. The path is mostly flat with slight inclines and declines, fully separated from vehicular traffic and described as walker and stroller friendly. The course passes views of the Las Vegas Strip, Frenchman's Mountain, landing aircraft, and local wildlife.

Distances offered:

  • 5K: one 3.1 mile lap on the History Walk paved trails
  • 10K: two laps of the 5K course
  • 1/2 Marathon: three identical laps of 4.37 miles each, total 13.11 miles

All race entries include a recycled technical shirt or comparable item, a recycled finishers' medal, post-race refreshments, access to aid stations, and eligibility for awards. Aid stations are spaced about 1 to 2 miles apart and provide cupped water and Gatorade.

Registration fees vary by registration period and on-site registration is cash only. Packet pickup is race day only at the start line near the History Walk. Parking is available at Sunset Regional Park and is best accessed from the south entrance on Eastern Avenue adjacent to the History Walk.

Award categories include overall and overall grand masters (age 50+); no age-group awards are given. Uncollected awards may be mailed for a shipping charge if requested within one week after the race. Visit the organization's website for the most recent information.

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