Select A Team:

Challenge Day

UCI Anti-Cancer Challenge

October 07, 2023

Saturday, Oct. 7 at UCI Aldrich Park
5K and 10K Run/Walk | 14-, 37-, 60- and 100-Mile Ride | Mountain Bike Ride

Ride, run or walk with us on Challenge Day, and enjoy a family-friendly festival featuring live entertainment, awards, activities and more!

Fundraising Commitments
Child Runner/Walker: $25
Adult Rider/Runner/Walker: $50
VIP Rider/Runner/Walker: $500

For the first time ever, we're offering a mountain bike route on Challenge Day and only 50 VIP riders will have the opportunity to participate. Don’t miss your chance to be one of the first 50 VIP riders to participate in this exclusive mountain bike route!

Due to an overwhelming response to our call for volunteers, all positions are full, with the exception of some ride marshal opportunities.​

There is still time to invite your friends and family to join you on event day.
Online registration for the UCI Anti-Cancer Challenge will close Friday, Oct. 6 at 8 a.m.
On-site registration will be available on Saturday, Oct. 7 starting at 6 a.m.


Wednesday - Friday, Oct. 4 - 6
3 - 6 p.m.

University Advancement Event Space at UCI Research Park
5141 California Avenue, Suite 250
Irvine, CA 92617
(Corner of Bison Ave. and California Ave.)

To ensure a seamless experience when picking up packets for a team/group: Please email us at no later than 5 p.m. on Monday, Oct. 2. In your email, please include your team name or the list of names and the date of your packet pickup. This advance notice will enable us to thoroughly prepare your items, ensuring a smooth pickup process.

Packet pickup will also be available at registration at 6 a.m. on Challenge Day; however we strongly recommend you pick up your packet prior to Oct. 7 to avoid delays.

Saturday, Oct. 7 at UCI Aldrich Park

6:00 a.m. – Registration Open, VIP Lounge and Rider Central Open*
6:30 a.m. – 100-Mile Ride
7:00 a.m. – 60-Mile Ride
8:00 a.m. - Mountain Bike Ride
8:00 a.m. – Festival Opens
8:15 a.m. – 37-Mile Ride
8:45 a.m. – 14-Mile Ride
9:00 a.m. – 5K and 10K Run/Walk Opening Ceremony
9:15 a.m. - 10K Run/Walk
9:20 a.m. – 5K Run/Walk
10:00 a.m. – Finish Line BBQ Open and Live Musical Entertainment
10:45 a.m. – Awards Presentation 
11:00 a.m. – 2:00 p.m. – Live Musical Entertainment
2:00 p.m. – Festival Concludes
*VIP Lounge and Rider Central remain open until last rider returns

Event day schedule is subject to change.

For complimentary parking on Challenge Day, please pre-register your vehicle's license plate by clicking here or the button below.​
Use parking code: ACC@UCI

Once you pre-register your vehicle, parking will be available in Lot 12A, Lot 16, Lot16H and the Anteater Parking Structure.
Please click here to view our parking map
 to help you easily located these designated parking areas.

Click the icons below to view the routes on Strava:


Click the icons below to view the routes on Ride with GPS:



Routes subject to change.

Safety is our top priority. Make sure your bike and helmet are ready, and review our safety tips.

Bike Valet & Gear Check: Check your bike or any gear in at the secure bike valet located at the entrance in the park.

Rider Central: All riders are welcome to rest and enjoy some light refreshments at Rider Central located in the festival near the main stage. 

Your bib color will match your route color. Follow the directional route signs with your color.

Rest stops are every 10-15 miles. Please note the last rest stop closes at 3 p.m.

Please plan to arrive between 8 - 9 a.m. to account for parking and check-in.

10K participants will line up first for their 9:15 a.m. start time, and 5K participants will line up behind them for their 9:20 a.m. start time.

Safety is our top priority. Runners line up according to how they think they will finish - fast runners in the front, slow runners in the back, walkers behind runners. Individuals with strollers will be lined up in the back. This prevents congestion on the course.

Will you be competing to win some fun UCI Anti-Cancer Challenge awards on Challenge Day?

Top Fundraiser
Top Fundraising Team
Largest Team
Best Dressed Team
Most Spirited Team

Questions? Email us at