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Race along the Santa Ana River Trail in this fast and friendly 5k or 10k event. Great for newcomers to running and seasoned pros alike, runners are encouraged to done their best red, white and blue in support of the 13th Marine Expeditionary Unit. Sign up for the great atmosphere.

Anaheim Semper 5K & 10K Run routes



This is an out-and-back 5K (3.1 miles) course along the beautiful Santa Ana River. This course is primarily on the unpaved Santa Ana River Trail (SART) that parallels the paved SART bikeway east of Riverdale Park in Anaheim. The course travels east from the park, initially on the bikeway that coninues on the unpaved SART to the 5K turnaround at the approximately 1.55 mile point, just before Imperial Highway. The course follows the same path on the return, and enters Riverdale Park through the gate at its northeast end and continues approximately 100 feet to the finish line inside the park.


This is a double out-and-back 10K (6.2 miles) course consisting of 1.55 miles (3.1 miles) east of Riverdale Park and 1.55 miles out-and-back (3.1 miles) west of Riverdale Park on the Santa Ana River Trail (SART). The first half of the course coincides with the 5K course described above, but passes the turnoff into Riverdale Park to the 5K finish line and continues west on the SART to the turnaround just past Orange Olive Road. The course follows the same path on the return, and enters Riverdale Park through the gate at its northeast end and continues approximately 100 feet to the finish line inside the park.

NB: This is not a closed course.

Kids fun run:

The Kid's Fun Run for children 9 and under is an approximately 1 km course inside Riverdale Park with start and finish lines near the 5K&10K finish-line expo area. Please note that parents can run with their child(ren) but cannot register for the Kid's Fun Run.

Event Details

What’s Included
  • Finisher's Medal
  • Ticket to participate in the "Opportunity Raffle"
  • Awards: 10K & 5K MALE & FEMALE:

    1ST - $100.00

    2ND - $75.00

    3RD - $50.00
  • Costume contest
  • Water stations
  • Course marshalled
  • Free t-shirt
Raceday Logistics

Packet Pick Up:

Get your bib, t-shirt, and goodie bag before the race:

Where: East Anaheim Community Center (8201 E Santa Ana Canyon Rd, Anaheim Hills)

When: Thursday, May 16th

Hours: 12:00 PM to 7:00 PM

You can also pick up your race packet at Riverdale Park on the morning of the event starting at 6:00 AM; however, availability of all t-shirt sizes may be limited on race day and is not guaranteed. Please bring proof of registration (copy of your confirmation email) with you to expedite the pick-up process.

Race Day Schedule:

6:00 - 7:15AM:
Late registration / packet pick-up for 5K and 10K
7:00 - 10:00AM: Silent auction open for bids
8:00 AM: 5K & 10K start (Subject to change)
8:15 - 10:00AM: Vendor Expo
9:15AM: Raffle & Overall race winners announce Pass out Age Group Awards
9:30AM: Kids fun run start
10:15AM: Silent Auction check out

Finish line expo:

There will be an expo at the finish line, with freebies and handouts from a variety of area merchants. There will also be a DJ to keep you entertained throughout the day.


Frequently Asked Questions

Is there a place to drop off my bag at the Anaheim Semper 5k/10k?
Yes, there will be baggage drop available for all race entrants.
Can I send someone to collect my race bib?
Yes, both friends and family can collect race bibs and t-shirts. However, if it is a friend with a different address then please ensure they have your written consent and drivers license.
Can I participate in the Anaheim Semper 5k/10k with a stroller?
Yes, strollers are allowed on the course but please ensure that if you are slower than a runner/walker then you start at the back.
Have a question? Get answers from our team.

Is your question about booking your place? See our Help Center

Anaheim Semper 5K & 10K Run weather forecast

Clear throughout the day.

Predicted highs
Predicted lows

Meet the organizerIcon

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The Anaheim Marine Adoption Committee is comprised of community volunteers to support the adopted Marines of the 13th Marine Expeditionary Unit (MEU). The Anaheim City Council adopted the 13th MEU in 2007 to show and provide community support. The volunteer committee organizes various fundraisers throughout the year to support the Marines and Sailors of the 13th MEU.

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