9th Annual Battle of The Fenders 300 Lap Enduro

Saturday December 13, 2025

Gates Open - 8:00 AM | Racing Begins - 11:00 AM

PIT SIDE TICKETS AVAILABLE AT GATE ONLY

LATEST NEWS

2026 Proposed Rule Updates Outline

Attention Drivers! View the summary of proposed rule changes for 2026. All Feedback is due no later than Friday, December 19, 2025 at 12pm. Feedback must be emailed to tech@coloradospeedway.com . Click Here to Download Proposed Rule Changes

CNS Staff

Battle of the Fenders Rescheduled for December 13, 2025

We heard your voices loud and clear! We're gonna give the 9th annual Battle of the Fenders One More Shot this Saturday December 13, 2025. Practice will take place December 12th (Gates at noon; track hot from 1pm-5pm). Saturday December 13 gates open at 8:00am and green flag at 11:00am. Tires and fuel will be available Registration has re-opened click the link to register: https://pci.jotform.com/form/252925039197162 All tickets are sold in person. No online tickets. We look f

CNS Staff

Battle of the Fenders Canceled December 5-6, 2025

To our Drivers, Crews, Fans, and Employees - we hate to announce that the 9th Battle of the Fenders 300 is canceled for this weekend - as is practice for today. The forecast for Wednesday called for 1" of snow, and we got 6". We have been scraping and shoveling for the last 48 hours, and Shawn Sulley spent all day helping to clear snow with his plow, but as you can see below - that last inch of ice will not budge. The forecast called for a sunny day today, but the clouds have

CNS Staff

Announcing the 2026 Colorado National Speedway Schedule

Attention CNS Faithful: below, your first look at the 2026 Event Schedule. Please note: this is a DRAFT and subject to change. With than in mind, we welcome your feedback - positive or constructive - by email to tech@coloradospeedway.com . Close observers will note the new "DF" designation - which stands for Double Feature. Page 2 is a brief explanation of what the Double Feature nights will look like. Yes, they will count for Double NASCAR Regional and Colorado National Spe

CNS Staff

BATTLE OF THE FENDERS SATURDAY, DECEMBER 6, 2025 EVENT DETAILS

Race Fans - this Saturday, December 6th is going to be a great day for the Battle of the Fenders! Join us for 300 laps of fender banging action as Super Stocks and Figure 8's battle Dirt Cars, 4 Cylinder Cars, 6 Cylinder Cars, and maybe even a Pickup Truck or two... it's one of the most exciting events of the year! Drivers you still have time to register for the race by clicking here. Here are the details for the event: - Doors open at 8:00am on the Pit Side ONLY - no grandst

CNS Staff

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BRETT YACKEY - 2025 CHAMPION COLORADO NATIONAL SPEEDWAY

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RACE NIGHT SCHEDULE

APRIL - SEPTEMBER

Pit Gate & Tech Opens: 1:00pm

Practice Begins: 3:00pm

Driver's Meeting: 5:15pm

Qualifying: 5:30pm

National Anthem: 6:20pm

Racing Begins: 6:30pm Sharp

HALLOWEEN RACE:

Pit Gate & Tech Opens: 10:00am

Practice Begins: 11:30am

Driver's Meeting: 12:45pm

Qualifying: 1:00pm

Trick or Treat: 2:00pm

Clear Infield: 3:05pm

National Anthem: 3:15pm

Racing Begins: 3:30pm Sharp

COLORADO NATIONAL SPEEDWAY

AFFORDABLE FAMILY FUN AT COLORADO'S ONLY NASCAR TRACK

Photo taken during our 2024 SOLD OUT Sprint Car Spectacular

Colorado National Speedway has been thrilling fans since 1965, when visionaries Gene & Gerta Heffley carved a one-mile dirt oval track out of a field with a spectacular view of the Rocky Mountains. Later on, CNS was a high banked half-mile dirt track before being reconfigured and paved in 1989. Since then, Colorado National Speedway has been a part of the NASCAR Weekly Racing program, and has hosted major race events such as the NASCAR Craftsman Truck Series from 1995 – 1997.

This summer, CNS is excited to celebrate our 60th consecutive season and continue the tradition of short track racing in Colorado with epic events: the 4th of July Winged Sprint Car Spectacular, Father's Day Super Sunday Monster Truck Show, ARCA Menards Series, CARS Tour West, Legend Summer Nationals, North American Big Rigs & more. CNS also plays host to an incredible weekly racing program featuring some of the best drivers in the Rocky Mountain Region competing regularly across 11 different divisions. Check out our event schedule to find out what is upcoming, and grab your tickets to experience a thrilling night of action at Colorado's premier NASCAR short track, Colorado National Speedway!