Filthy 50+ - MTB Ride with Benefits logo
Mountain Bike

Filthy 50+ - MTB Ride with Benefits

Date
October 31, 2026
Distance
30+ mi
Price
$20–$135
Register →

From the Organizer

The 12th Annual Filthy 50+ will take you through various areas of San Dieguito River Park and Black Mountain Park. Fast and flowy for all skill levels. The 30 mile riders will head out and turn around at the 15 mile mark and the 50+ mile riders will continue on to the Black Mountain Park area where you will encounter a lollipop and new trails to go with it! The course will be fully marked with Pink Flags and Red Arrows. Fully stocked feed stations will be placed throughout the ride to keep you fueled up.

There will be a kid’s ride supported by Team Quick n’ Dirty at 8:45am. Awards will be given out immediately following the kids ride. Registration for the kid’s ride will be online and onsite. 

When riding the course please be aware that the trails will be open to the public so please pay attention to other riders, hikers, and horseback riders. Please pay special attention when riding the switchbacks portion of the course and use courtesy when passing. Thanks!

WHEN:

Saturday, October 31, 2026

  • Start times will be:
    • 8:00am for 50 mile
    • 8:30 for 30 mile
    • 8:45 for Kids Race

WHERE:

REGISTRATION:

  • REGISTER EARLY - IT WILL SELL OUT!
  • Registration closes the day before the race -or- when registration is full. If registration is full, the waitlists will open.
    Check-in will be open from 6:00 to 7:30 on day of event

COURSES:

FEED STATIONS:

Please stop if you need to refuel. There will be plenty of Hammer Nutrition products available. The mile marker and addresses are below if your support crew want to do hand-ups.

#1– 11 Miles & #4– 42 Miles (12653 Sunset Dr Escondido, CA  92025)
#2– 21 Miles & #3– 32 Miles (San Dieguito River Park San Diego, CA 92127)

FILTHY 50+ REGISTERED RIDERS WILL RECEIVE:

  • Swag bag provided by Hammer Nutrition
  • Commemorative FILTHY 50+ event item
  • QnD Costume Party sponsor by 805 Beer!
  • Awards for the Top 3 Finishers in each class for the 50+ mile ride
  • Awards for the Top 3 Males and Top 3 Female finisher of the 30 mile ride
  • Electronic Timing and Results.
  • Fully stocked Feed Stations at strategic locations. Feed Stations will include: hydration by Hydro, fruit, food, and Hammer Nutrition Products. The station will also include a self-help mechanic area. (Each Feed Station can be accessed in both directions).

ENTERTAINMENT:

  • Live entertainment at the Filthy 50 Oasis
  • Kids area with a Kids ride!
  • Food will be available at an additional cost
  • Vendor Village
  • Prize raffle with a portion of the proceeds going to SDRP Bike Patrol.

The primary goal of the Filthy 50+ Fun Ride with Benefits is to bring the mountain biking community together and to celebrate what we all love to do, RIDE OUR BIKES! Additionally, we want to bring awareness concerning the trails we ride on, as well as give back to the organizations that keep us riding on those trails. As part of the Filthy 50+ we urge you to help us give back by donating to the SDRP Bike Patrol.

Events

50 MILES$135
30 MILES - SCHOOL BOY/GIRL$85
30 MILES - ADULT$120
KIDS RACE$20

Weather

Typical Conditions

It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.

Typical High

82°

Typical Low

48°

Chance of Rain

9%

Based on US Climate Normals data from San Pasqual Animal Pk, 3 mi from the venue.

Sunrise 7:06 AMSunset 5:58 PMDaylight 10h 53m

Host City

About Escondido, CA

Population

149,913

as of 2023

City Elevation

656 ft

Nearest Airport

CLD

McClellan-Palomar Airport · 11 mi

Major Hub

SAN

San Diego International Airport · 28 mi

Time Zone

Pacific Time

From Endurance Grid

A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.

Race Location

Your Next Start Line

What Are You
Waiting For?

Every finish line starts with a single decision. Claim your spot at Filthy 50+ - MTB Ride with Benefits, put it on the calendar, and turn “someday” into a start date.

136

Days to train

Race
Filthy 50+ - MTB Ride with Benefits
Date
October 31, 2026

From Endurance Grid

About This Sport

Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.

Mountain biking takes place on singletrack and natural terrain where reading the trail matters as much as fitness — cornering, braking, and instinct on dirt are skills that only come from time in the saddle.

Events range from beginner-friendly cross-country races to technical enduros, and the trail community is one of the most welcoming in endurance sport.

Mountain Bike

XC races, enduros, and fat bike events across U.S. trails. Technical, physical, and completely different from anything on pavement.

Frequently Asked Questions (FAQs)

What is the Filthy 50+ - MTB Ride with Benefits?
Filthy 50+ - MTB Ride with Benefits is a mountain bike race held in Escondido, California on October 31, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more mountain bike races near you or explore our sports guides to learn what race day actually feels like.
When and where is the Filthy 50+ - MTB Ride with Benefits?
Saturday, October 31, 2026 in Escondido, California at 18194 Bandy Canyon Rd. Check the event page for exact start times and wave schedules.
How do I register for the Filthy 50+ - MTB Ride with Benefits?
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

Filthy 50+ - MTB Ride with Benefits

Oct 31, 2026

Register →