Skip to main content
Run Vibes
Browse races
Antelope Causeway Half Marathon, 10K, 5K & Duathlon logo

Antelope Causeway Half Marathon, 10K, 5K & Duathlon

Fri, Apr 3, 2026, 9:00 AM MDT

Location
Syracuse, UT
Antelope Island State Park - Marina, 4528 West 1700 South, 84075
Type
DUATHLON
Official registrationPast results (if available)

Sign up and verify details on the organizer’s official page.

At a glance

Double-check key details

Kick off your multisport season or enjoy a run along the Antelope Island Causeway in this unique duathlon or running event.

  • Competitive

Great for: runners who like a competitive edge

Less ideal for: walkers-only pacing

Experience the Antelope Causeway Half Marathon, 10K, 5K, or Duathlon in Syracuse, UT. This event offers a unique opportunity to run the Causeway of Antelope Island, noted as the best time of the year for it. It's also positioned as an excellent way to begin your multisport season with a bike-first, then run duathlon, similar to a triathlon without the swim.

What to expect

  • Run or race along the Antelope Island Causeway.
  • Choose from a Half Marathon, 10K, 5K, or a bike-first, then run Duathlon.
  • Prepare for rolling terrain at a moderate altitude.

Standout details

  • Antelope Island Causeway setting
  • Duathlon option (bike first, then run)
  • Kick off multisport race season
  • Half Marathon, 10K, 5K options

Auto-drafted from the public listing — confirm details on the official event page before signing up.

Distances & registration

11 options

Registration for all distances is through the official signup link above.

  • 3.1 Miles

    Fri, Apr 3, 9:00 AM MDT · From $38.10

    Opens Apr 14, 2025, 10:42 AM MDT · Closes Dec 26, 2025, 6:59 PM MST

  • 6.2 Miles

    Fri, Apr 3, 9:00 AM MDT · From $38.10

    Opens Jun 1, 2025, 10:42 AM MDT · Closes Dec 26, 2025, 6:59 PM MST

  • 13.1 Miles

    Fri, Apr 3, 9:00 AM MDT · From $64.60

    Opens Jun 1, 2025, 10:42 AM MDT · Closes Dec 26, 2025, 6:59 PM MST

+ 8 more options
  • 15.1 Miles

    Fri, Apr 3, 9:00 AM MDT · From $54.00

    Opens Apr 12, 2025, 9:01 AM MDT · Closes Dec 26, 2025, 6:59 PM MST

  • 15.1 Miles

    Fri, Apr 3, 9:00 AM MDT · From $91.10

    Opens Jul 1, 2025, 9:25 AM MDT · Closes Dec 26, 2025, 6:59 PM MST

  • 24 Miles

    Fri, Apr 3, 9:00 AM MDT · From $38.10

    Opens Jul 1, 2025, 12:05 PM MDT · Closes Dec 26, 2025, 6:59 PM MST

  • 30.2 Miles

    Fri, Apr 3, 9:00 AM MDT · From $59.30

    Opens Aug 1, 2025, 12:05 PM MDT · Closes Dec 26, 2025, 6:59 PM MST

  • 30.2 Miles

    Fri, Apr 3, 9:00 AM MDT · From $96.40

    Opens Mar 28, 2025, 9:25 AM MDT · Closes Dec 26, 2025, 6:59 PM MST

  • Virtual Race

    Fri, Apr 3, 9:00 AM MDT · From $38.10

    Opens Jan 3, 2025, 5:37 AM MST · Closes Apr 2, 2026, 7:59 AM MDT

  • Bike Only 11 Miles

    Fri, Apr 3, 9:00 AM MDT · From $38.10

    Opens Mar 15, 2025, 11:49 AM MDT · Closes Dec 26, 2025, 6:59 PM MST

  • Half Marathon - Pacer Invitation Only

    Fri, Apr 3, 9:00 AM MDT · From $1,041.00

    Opens Mar 18, 2025, 8:03 AM MDT · Closes Apr 2, 2026, 2:00 PM MDT

The course

  • Rolling
  • Timed race
From the organizer

Run the Causeway of Antelope Island the best time of the year. Do a Half, 10K, 5K or Duathlon.

This is a great race to kick of the Multisport race season with a bike first the run on the Antelope Island. Similar to a triathlon without the swim.

Also in this area

Easier options nearby

Lower-difficulty races in the same state.