The Thrilla Cyclocross Series will be a donation only event. Click here to make a donation

There will be no entry fees charged for participation in individual races or the series, however, participants and spectators are encouraged to donate to assist with covering the cost of the event, in lieu of race entry fees. Everyone will still need to register through OBRA or day of.

The Horner Cycling Foundation’s mission is to make their cycling program and events accessible to all households and participants, regardless of a participant’s ability to pay. All donations will be used to cover expenses related to the event, with any additional funds used to fund on-going programs and events with the Horner Cycling Foundation. 

For those interested in donating, please click here, and we will send you a tax donation receipt.  You will be able to donate at the races as well and we will have tax donation slips onsite.

Additionally, a limited number of cyclocross bikes will be available through the HCF bike library for participants needing a bike to use at the event, at no charge. Thank you for your support and participation! 

Race Dates:

  • September 12th – 
  • September 19th – 
  • September 26th – 
  • October 3rd – 

Race Times:

  • 4:20 – 4:30 pm: Kiddie Cross 3-8 years old.
  • 4:30 pm: Junior Race 9-11 years old. 20 minutes – 1 to 2 laps
  • Pre-ride
  • 5:15 pm: 30 minute race –
    • Cat 4
    • Cat 4 Masters 35+,
    • Masters 50+
    • Masters 70+
    • Masters m80+
    • Beginner
    • Clydesdale/Athena
    • Junior 3/4/5
  • 6 pm: 45 minute race –
    • Cat 1/2
    • Cat 1/2 Masters 35+
    • Cat 3
    • Cat 3 Masters 35+
    • Single Speed


Every adult that wins their category will receive a 6 pack of Deschutes Brewery Beer at the next race.
Winners younger than 21, will receive other swag.


The Athletic Club of Bend
61615 Athletic Club Drive
Bend, OR 97703


The Horner Cycling Foundation




  • Can I do both races?
    • Yes, just let us know the category you are racing.

  • Can I jump in and do the Category 4 race even though I’m a Cat 3? I will go slow. I just can’t do the later race because of a previous engagement.
    • The answer is, “I’m really sorry but maybe you should plan better. No, you cannot race in a lower category than you are even if you aren’t in it to win it.”

  • I’ve been killing it out there and winning races. I think I will upgrade right now to a Cat 2.
    • Oh, I’m sorry. But you can’t do that. You need to go through OBRA. Just email them and they determine whether you can be upgraded. You can self-select any of the lower categories.

Make a Donation

More Info:

Cyclocross is the sport of racing bicycles over rough terrain that usually requires carrying the bicycle over obstacles.
Cross bikes are not required. Helmets required.
OBRA 1-day membership or Annual membership required. You can purchase at the race or at
Online Registration:
Online Reg closes at noon on every race day.
Day of Registration: 3:30 p.m.-5:45 p.m. (must register no
later than 15 minutes before your race start).
Pre-Ride: 3:30 p.m.-5:05 p.m.

The Course:

It’s a lap around the Athletic Club of Bend, clockwise. Each lap is 2 miles. You complete as many laps as you can in 30 minutes or 45 minutes, depending on which race you sign up for. The course is mostly single-track, loose dirt, 2 barriers, sand pit (sometimes mud pit), a little pavement and a few steep climbs. It’s a perfect course for any rider whether you are a first timer or a pro.

Thank you to our sponsors!