Transition 2021 Cascadia Dirt Cup

The Northwest's Premier Enduro 

Mountain Bike Race Series

showcasing and supporting
Cascadia's world-class trails.



2021 Season Lineup 

⚡️CDC Round w/ E-Bike Race  

⚡️Post Canyon Enduro

CDC Round 1 | Season Opener

JUNE 26, 2021
Hood River, Oregon

Tiger Mountain Enduro

CDC Round 2:

JULY 24, 2021 

Issaquah, Washington

⚡️North Mountain Enduro

CDC Round 3:

AUGUST 21, 2021

Darrington, Washington


CDC Round 4:

SEPTEMBER 18, 2021

Yacolt, Washington

⚡️North Slope Enduro 

CDC Round 5 | Grand Finale

October 2, 2021

Olympia, Washington

Registration Details

$95 Single Race Entry
$70 Enduro Lite Entry

All registration processing fees are rolled into the registration price





Professionally organized event
Well-marked course
RFID timing with fast, accurate results
On-course mechanical support
One free entry into post-race raffle
Stocked feed stations
Hearty, post race meal 
Refreshing post-race beer (21+) 

*Subject to change if protocols are in place for Covid-19


Medals 5 deep for all categories; Pro Purse
payout 3-deep at $500, $250, $100; 
Must be
present on podium to receive payment.

Pro Men / Pro Women 


E-Bike Open Women* / E-Bike Open Men*

*E-Bike category at Post Canyon, North Mt & North Slope Only
Jr Expert Girls 12-14 / Jr Expert Boys 12-14
Jr Expert Girls 15-17 / Jr Expert Boys 15-17

Expert Women 18-39 / Expert Women 40+

Expert Men 18-29 / Expert Men 30-39 

Expert Men 40-49 / Expert Men 50-59 

Expert Men 60+

Hard Tail Open



E-Bike Sport Women* / E-Bike Sport Men*

*E-Bike category at Post Canyon, North Mt & North Slope Only
Jr Sport Girls 12-14 / Jr Sport Boys 12-14

Jr Sport Girls 15-17 / Jr Sport Boys 15-17

Sport Women 18-39 / Sport Women 40+

Sport Men 18-29 / Sport Men 30-39
Sport Men 40-49 / Sport Men 50+

Sport Men 60+

Enduro Lite Open Women | Enduro Lite Open Men

**Enduro Lite racers complete the condensed Enduro Lite course



E-Bike racers have the choice or racing in these two categories:

The E-Bike Open racers will compete on the CDC Pro/Expert course;

The E-Bike Sport racers will compete on the CDC Sport Course;

All E-Bike courses may share an additional stage, designated as the Power Stage, a technical climbing stage, subject to appropriate trail availability and permitting requirements for each venue. 


Enduro Lite categories are a short course option geared toward youth, beginners or racers unable to commit to a full course/day of racing. The short course will be a 2-3 stage condensed version of the full course. Riders should be able to complete a comparable ride of approximately ten miles in length and up to 2000 feet of elevation gain to participate. Awards ceremony is typically held within 60 minutes of the last Enduro Lite racer finishing the race.



We Want You! Enlistment opens soon for the 

Cascadia Dirt Cup Volunteer Army . It's all thrills and no drills, powered by high fives plus food, beverages and lucky raffle tickets (fingers crossed!) 




Vendor Village
Interested in showcasing your company's products and services at a race? Contact Us

Volunteer Sign Ups open Spring 2021

So, what's this whole enduro thing all about anyway? A few of the links we like to share to explain Enduro MTB racing:

Video Series by Christopher San Agustin, Founder of Broken & Coastal Magazine, documenting his experience as a first time racer in the 2019 Cascadia Dirt Cup.

Tiger Mt  | Post Canyon  | Yacolt  | Capitol Forest  |  Chuckanut

Beginner's Guide to Enduro: What the hell is it? 

Enduro: Who, What, When, Where… and Why?

YouTuber Daily MTB Rider: My First Ever Enduro,
And I Registered As An Expert?!   Part 1  /  Part 2

Starting Enduro Racing? 10 things you need to know.



Race Cascadia Rules

Here's a copy of our rules to keep everyone honest, all in the interest of promoting safety, set standards and good sportsmanship so everyone can finish well and have fun. Each racer is responsible for knowing and following these rules.  Failure to comply with these written rules or any other rules communicated to racers at the event may result in penalties or disqualification. Race Cascadia organizers will make any decisions regarding any alleged or potential violation when reported or observed.  



Racers self-seed at the Cascadia Dirt Cup. It is each racer's responsibility to race in the appropriately challenging category within their skill level. Use the following category descriptions as a guide to help find your sweet spot where you feel competent on course and competitive with racers in your category.

PRO RIDERS are the elite athletes of our sport. They are extremely competent at jumping, drops, cornering and technical rock / trail features. A pro rider can ride any trail in any condition at race speed without hesitation.

EXPERT RIDERS are comfortable with most obstacles they encounter on a trail. They are comfortable with steep and loose terrain and technical rock gardens. They ride most trail features but may occasionally take an alternate line.

SPORT RIDERS are experienced mountain bikers but may be happier traveling down a trail at slower speeds. They may be newer to racing, and eager to compete against other racers at similar skill level. Sport racers can ride many trails but will not hesitate to take an alternate line around more technical sections/features above their skill level.

LITE RIDERS compete on a shorter, 2-3 stage condensed course geared toward youth, beginners or racers unable to commit to a full course/day of racing. Riders should be able to complete a comparable ride of approximately 10 miles in length and up to 2000’ of elevation gain to participate. Lite riders are often still working on the fundamentals of riding and do not hesitate to walk technical sections that they feel are above their riding ability.

In the spirit of fair competition, riders are encouraged to cat up to the next proficiency level when they would have placed in the top 5 of that higher category. The race director may suggest or require category changes in either direction for individual racers if circumstances warrant it.​ A racer may also change from one category to another category right up until race day check-in for any event. However, series points earned in one category will not transfer to another category. 



We will be using the touchless Sportident SIAC+ timing system.  Timing chip will go on the racers right wrist only.  No watch or GPS on right wrist.  Please wear on outside of clothing. Lost or unreturned chip will result in a $100 replacement fee and must be paid in full on-site to receive backup times for inclusion in the results for the race, overall series points, and to participate in future events.