DateExpected
Mid April 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
East River Front Park, 10911 S River Front Pkwy, South Jordan, UT 84095
South Jordan, Salt Lake County
Countdown
April
A full marathon on a flat trail, out and back, with barely any climbing. A friendly way to tick off 42 km, and a small field of about 40.
Key facts
01Cut-off follows a 7.5-hour pace
02Out-and-back course, so you pass other runners on the way
Create a free training plan for the Happy Trails Marathon 42 km
7-day free trial, no card required
The course
The route
South Jordan
Distance42km
Total climb296m
StartElevation
0 kmDrag map to rotate41.2 km
Weather
Mid-April, South Jordan
13°CTypical high
2°CTypical low
-6°CColdest in 20 years
34%Days with rain
Highs around 13°C and lows around 2°C, but it has dropped to -6°C. Rain on 34% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
2025 results
Who finishes, and how
#RiderTimeAvg speed
01Carina Collet03:15:3812.9 km/h
02Rylee Olsen03:54:2810.8 km/h
03Emily Shaffer04:03:1710.4 km/h
26
Women finishers
5:31:40
Median time
7.6 km/h
Median speed
Women · 2025 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
OrganiserHappy Trails Running (race director: Don Hantla)
Websitehappytrailsrace.com
Instagram@happytrailsrunning
Running since2023
Training
Training for the Happy Trails Marathon 42 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Happy Trails Marathon 42 km plan targets
Typical sessions
42 km with 296 m of climbing
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Back-to-back weekend runs for fatigue resistance
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Happy Trails Marathon 42 km plan.
7-day free trial, no card required.
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