About this event
Quick n’ Dirty MTB’s 12th Annual Filthy 50+ returns to the San Pasqual Staging Area on Halloween, Saturday, October 31, 2026. The community-focused endurance event offers a timed 52.2-mile route with 3,195 feet of climbing, a 30-mile out-and-back, and a one-mile kids course. Adult starts are 8:00 AM for the 50+ and 8:30 AM for both 30-mile groups; the age-11-and-under kids race starts about 8:45 AM. The long route continues from San Dieguito River Park into Black Mountain Park on a reverse-lollipop layout. Pink flags and red arrows mark the course, and four feed-station visits provide hydration, food, Hammer Nutrition products and self-help mechanical supplies. Trails remain open to hikers, equestrians and other riders, so racers must yield and pass courteously. Live BikeSignup inventory remains open and all four Sign Up controls were still selectable on October 28. Final all-fees-included pricing is now active: $175 for 50+ miles, $155 for the adult 30 miles, $120 for the ages 12–15 school division and $25 for the kids race. The published online windows run into race morning—8:05 AM for 50+, 8:35 AM for both 30-mile groups and 10:00 AM for kids—unless a field fills first; only the kids race explicitly advertises onsite entry. The organizer’s October 18 reminder says to sign up before the event sells out, without publishing numeric capacity or remaining inventory. Early packet pickup is Wednesday, October 28 from 4:00–7:00 PM at Cadence Cyclery Encinitas, 190 N Coast Hwy 101; riders may collect packets for friends or family, food is announced, and Quick n’ Dirty’s October 25 update fixes the Garmin/Thule raffle at 6:00 PM with about $2,000 in total retail value. Race-day check-in opens at 6:00 AM, with a conservative 7:30 AM cutoff because organizer and registration-host listings differ by 15 minutes. Electronic timing, event swag, the Halloween costume party, entertainment, vendors, food sales and a charity raffle support the rider program. Quick n’ Dirty’s current first-party post confirms a $5,000 total cash purse; the established division breakdown is $2,500 each for Expert Men Open and Expert Women Open, paid through fifth. No official finish cutoff, total capacity, current spectator gate policy, livestream or 2026 results are published.
At a glance
The 50+ and adult 30-mile events are age 16 and older. The school 30-mile event is ages 12–15. The kids race is ages 11 and under, with Beginner (one year or less riding/racing dirt), Sport (one to two years) and Expert (two-plus years) skill groups for boys and girls. The 50+ includes open, age, single-speed, drop-bar and bodyweight divisions. No license, qualification or invitation requirement is published.
open
San Pasqual Staging Area
In person
Event links
Official 2026 organizer event page
Live BikeSignup registration
Current events, prices and deadlines
Quick n’ Dirty results index
TBG Event Timing calendar
San Dieguito River Park trail information
San Dieguito River Park rules and staging hours
OutdoorSoCal event overview
San Pasqual Staging Area map
Current registration / sellout reminder
Official $5,000 cash-purse announcement
Early packet pickup at Cadence Cyclery Encinitas
Current packet-pickup raffle time and prize-value update
Latest packet-pickup and raffle reminder
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