The 2026 Antelope Island Half Marathon has concluded.

Antelope Island Half Marathon

Race complete
Antelope Island, UT, USA · October 9, 2026·
clear-day58°·66° high·Windy·Dry
8
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Race Day Weather

clear-day
58°at start
82° high
Windy
Dry
Your goal
0:00:00

Comfortable temps, big temp swing, moderate wind

Mild 58°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 82°F by later miles, so expect fading conditions as the race progresses. Moderate winds around 16mph may affect pacing on open sections of the course.

clear-night9
clear-night10
clear-day10
clear-day8
clear-day7
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clear-day5
clear-day4
partly-cloudy-day5
partly-cloudy-day5
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partly-cloudy-day5

Pace Calculator

13.1mi
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Race Plan

Get your personalized Antelope Island Half Marathon race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

Race Info

The Antelope Island Marathon Half Marathon runs 13.1 miles on Antelope Island, the largest island in the Great Salt Lake. It starts and finishes near the marina and follows the same out-and-back route as the marathon, turning around at mile 6.55. The road rolls over several small hills, with the lake to the east and the island's mountains to the west, and bison are a common sight along the way.

Race weekend

Friday, October 9
7:00 AMMarathon (26.2 mi)
8:15 AMHalf Marathon (13.1 mi)
9:00 AM10K (6.2 mi)
9:00 AM5K (3.1 mi)
Area Map

Course Map

FAQ

When is the 2026 Antelope Island Half Marathon?

The 2026 Antelope Island Half Marathon will be held on Friday October 9, 2026.

What will the weather be like for the 2026 Antelope Island Half Marathon?

The forecast calls for a high of 82°F and a low of 58°F with a 0% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 10 years of data
Avg Temp
52°F
L:48° H:56°
RunScore
9
Conditions
Rain Freq
10%
1 of 10 yrs
Wind8mph
Dew33°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-day
58°/66°-
8
2025
partly-cloudy-day
61°/65°-
7
2024
clear-day
61°/69°-
9
2023
clear-day
49°/56°-
10
2022
clear-day
52°/62°-
9
2021
rain
46°/48°Light
9
2020
clear-day
54°/65°-
9
2019
clear-day
28°/38°-
10
2018
clear-day
40°/48°-
10
2017
clear-day
34°/38°-
10