Marathons in Utah

Utah is the downhill capital of American marathoning — from the bucket-list St. George in October to the canyon-fast Big Cottonwood, almost every race trades flat for gravity. All four are below in date order, each with a live countdown checked against official dates.

Updated 2026-07-13 Sorted by race date. Field sizes and course data are checked against each race's official source.

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About marathons in Utah

One geography, four races. Nearly every Utah course is a high-desert plateau cut by canyons that funnel runners thousands of feet downward to valley finishes. The calendar follows the dry months when the canyons are open and the air is cool: spring brings Salt Lake City in late April and the scenic Ogden descent past Pineview Reservoir in May, while fall delivers granite-fast Big Cottonwood in September and bucket-list St. George in early October. There is no true winter season here — the high country closes in and racing moves indoors elsewhere.

Picking your descent. It comes down to how much drop you want and which season suits you. Big Cottonwood loses more than 5,000 ft and reads as a pure clock-chaser; Ogden's gentler grade gives speed without wrecking the quads; St. George is the destination race you travel for as much as the time. Steeper canyons mean a faster split but a harder toll, so practice sustained downhill running for weeks first, and respect the altitude and dry air — canyon starts can sit in the 40s Fahrenheit and warm quickly lower down, so layer up and hydrate aggressively. All four are Boston-qualifying eligible; dial in your goal with the Boston Qualifying calculator.

Getting there. Salt Lake City International is the hub for all four — Big Cottonwood, Salt Lake City and Ogden sit within an hour, while St. George is a roughly four-hour drive (or a short hop to nearby airports) in the state's far southwest, doorstep to Zion. Use the race-time predictor to set a realistic downhill goal, then build toward it with a training plan.

Frequently Asked Questions

What is the biggest marathon in Utah?

The St. George Marathon, held on the first Saturday in October, is the state's largest and most prestigious race with a field of around 5,000 marathon runners. Demand exceeds available spots most years, so register early — entry is first-come (the lottery was retired in 2017) and opens online each April.

Which Utah marathon is fastest for a Boston qualifier or PB?

The Big Cottonwood Marathon in Murray (mid-September) is the fastest, dropping more than 5,000 feet from near Guardsman Pass through the Wasatch canyon on a USATF-certified course. Ogden (mid-May) is a gentler fast option with about 1,100 feet of net descent. Note that Boston applies a time adjustment to heavily downhill courses when validating qualifying times, so check the current rules before counting on a steep descent — confirm your target with the Boston Qualifying calculator.

When is marathon season in Utah and what's the weather like?

Utah races spring through fall, built around the dry months when the canyons are open: Salt Lake City in late April, Ogden in mid-May, Big Cottonwood in mid-September, and St. George in early October. Expect cool canyon starts — often in the 40s Fahrenheit — that warm quickly at the lower valley finish, plus thin, dry high-desert air. There is no winter marathon season; the high country is snowed in.

How do I enter the popular Utah marathons — ballot or open registration?

All four use first-come online registration rather than a ballot. St. George dropped its lottery in 2017 and now sells out fast once registration opens in April, so sign up the moment its window goes live. Big Cottonwood, Ogden and Salt Lake City take standard online entries that fill more gradually. Lodging near St. George and the canyon-shuttle races books up well ahead, so reserve early.

Which Utah marathon is most scenic, and is it worth traveling for?

St. George is the bucket-list destination race — red-rock high desert in the state's southwest, an hour from Zion National Park, on a fast point-to-point descent. Ogden is the other standout for scenery, running past Pineview Reservoir through the Ogden Valley. Both pair a strong course with a trip worth making; see the most scenic marathons guide for more.

Is St. George a good first marathon for a beginner?

It can be, with caveats. The net-downhill profile is forgiving on pace and the early-October weather is usually cool, but the sustained descent demands trained quads and the high-desert altitude is real for sea-level runners. If it's your first, arrive early to adjust, practice downhill running in your build-up, and start conservatively. For gentler first-timer options elsewhere see the beginner guide.