R3-California Dirt MTB Series, Scotts Flat Lake MTB ST/XC
Nevada City, CA
Sat, Oct 3, 2026
In 3 days · Sat, Oct 3, 2026
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Saturday, October 3rd, 2026
23333 Scotts Flat Rd, Nevada City CA
50–75°F · low rain risk
See last 10 years
On this date: rain 2 of the last 10 years
2025
42–56°F
rain
2024
63–90°F
dry
2023
44–69°F
dry
2022
48–79°F
dry
2021
49–81°F
dry
2020
57–90°F
dry
2019
37–63°F
dry
2018
52–65°F
rain
2017
42–65°F
dry
2016
40–48°F
dry
Best months to race in California →
Race-day forecast · Saturday, Oct 3
Cloudy · 65–91°F
Saturday, Oct 3starts near 65°F · 0% chance of rain · wind up to 9 mph
About this race
Welcome to CA Dirt MTB Series, Race 3 - Scotts Flat Lake
Complete California DIRT MTB Series at CaliforniaDirtMTB
(Venue Map, Start Times, Series Tech Guide and Series Overall Points)
Registration Information
BikeReg Registration Opens 9/18/26, 9pm … Closes-10/02/26, 7am
Location: Scotts Flat Lake CG, 23333 Scotts Flat Rd., Nevada City, CA (25 min. drive from Nevada City)
(Additional $10 - Race Day Walk-Up Registration or Race Plate Replacement)
Race Day Details
- USA Cycling rules: USA Cycling rulebook and Safe Sport Program applies to California Dirt MTB Series.
- Pre-Race Arrival: On race day, arrive 10-15 min. before your Wave/Cat # for pre-race announcements.
- Check-In: 10/02/26 Fri. 3pm-5pm Check-In/Pre-Ride.
- Race Schedule: 10/03/26 Sat. STXC 2pm Check-In/Pre-Ride is ~0.62 mile / 85' elev./lap.
Race Schedule
- STXC Event: 4pm STXC Starts, 20 minutes (No Pre-riding when STXC starts at 4pm).
- Sunset: 6:43pm.
- XC Event: 10/04/26 Sun. XC is ~3.1 mile / 425' elev./lap.
- Wave Schedule: 8am Wave 1 for Cat 3, 2 laps: 9am Wave 2 for Cat 2/Clydesdales, 4 laps: 11am Wave 3 for PRO/Cat 1/Single Speed, 5 laps.
Awards and Results
- Finish Notifications: If you cannot finish your race, inform the USA Cycling official in the timing booth.
- Results Review: Contest results period is 10 minutes: for issues, speak to the USA Cycling official, George, or Jet (not the timer).
- Podium Time: After USA Cycling official approves results for each wave, it's podium time with MC- The Beard, George Dunkum!
- Race Results: Race results will be uploaded to USA Cycling results and BikeReg results the following week.
Important Notes
- Registration Requirements: BikeReg registration, USAC 1-day or annual license, and waiver required.
- Jersey Series Winners: Requires completing 3 races and annual USAC license holder.
- Reserve Camping: Reserve your campsite. If you want to be close to the course, inform reservation personnel you are mountain bike racing.
- Parking Fees: $10 Event Parking per Day per Vehicle at BikeReg for Saturday and Sunday.
Race Recommendations
- What to Bring: Water, Bike, Helmet, Gloves, Eyewear, Camping Chair, Hat, Bug Spray, Cowbell, etc.
- Race Day Registration: Race day registration is CASH ONLY. Additional $10 for On-Site Race Day registration.
- Sunday Lunch: Lunch starts at 11am, taqueria style taco bar by Armando Rodriguez IG @elborlotemexicanfood!
- Volunteering: Interested in volunteering? Log into BikeReg for R3 and scroll to Volunteer Sign Ups and read descriptions.
Refund Policy
Refund may apply toward another 2026 or 2027 race registration, or donation for YBONC Programs. Forward us the racer's BikeReg confirmation email (no IM or calls) and we will reply with a registration coupon code to apply. Email us at [email protected].
Follow Us
For race week announcements and last-minute changes, follow us on social media:
Facebook: CaliforniaDirtMTBSeries
Instagram: cadirtmtb
Contact Information
USA Cycling/NCNCA Official: Matt Martinez.
Steps to Register
How to Register for an Event – athleteReg
Race Information
Thank you and safe travels everyone!
The CA Dirt MTB Staff
Course map
Train with a club
Run clubs near Nevada City to train with before race day.
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