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Out with the Old 1/2 Marathon, 10K, and 5K

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Las Vegas, Nevada, United States

calendar_today 20 Dec, 2025

directions_run Running

About the Event

Keep running and stay fit this holiday season by joining us for Calico Racing’s “Out with the Old” 1/2 Marathon, 10K, and 5K at Sunset Park! This budget friendly race celebrates past Calico Racing events and offers a deep discount on entry fees in exchange for recycled (left over) event shirts, medals, and awards. Las Vegas’s original! With a low price, easy logistics, and fun times, why not sneak in this final year end event- you’ll be back to your holiday shopping and parties in no time, and guilt free!

We’ll be offering 5K, 10K, and 1/2 Marathon Distances.

Races Offered

5K

Dec 20, 2025

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Distance — 5K

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Type — Running

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-66 days remaining

10K

Dec 20, 2025

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Distance — 10K

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Type — Running

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-66 days remaining

Half-Marathon

Dec 20, 2025

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Distance — Half-Marathon

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Type — Running

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-66 days remaining

Weather Overview

These values represent the 3-year monthly averages for December in Las Vegas.

Temp (°C)

Feels Like (°C)

thermostat 4.3° / 15.5°

wb_sunny 0.5° / 11.9°

Wind (km/h)

Humidity (%)

air 5.6 /

water_drop 38.1%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 4.3° / 15.5°

wb_sunny 0.5° / 11.9°

air 5.6 km/h

water_drop 38.1%

About Las Vegas

Learn more about the host city, Las Vegas.

Situated in the midst of the southern Nevada desert, Las Vegas is the largest city in the state of Nevada. Nicknamed Sin City, Las Vegas and its surrounding communities are famed for their mega-casino resorts, often lavishly decorated with names and themes meant to evoke romance, mystery, and exotic destinations. Along the brightly-lit Strip through the center of the city, visitors will find all manner of amusements and entertainment: circuses, stage shows, thrill rides, erotica, exotic animals, fine dining restaurants, nightclubs, shopping, and elaborate fountain displays, to say nothing of the age-old allure of gambling and drinking.