The National Hot Rod Diesel Association - The largest and longest-running diesel motorsport organization in the world.
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Frequently Asked Questions
Find answers to common questions about NHRDA events, racing classes, membership, and more.
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Events
Visit our Events page to view the current schedule. Each event listing includes registration details and links. You can also contact us directly at race@nhrda.com or (855) 658-4353 for registration assistance.
NHRDA does not issue refunds for cancelled events. However, spectator wristbands remain valid for one year at any NHRDA event, and competitors receive points or rescheduling options if qualifying has not begun. Please review our Terms & Conditions for complete rainout policy details.
NHRDA hosts events at premier racetracks across the United States and Canada. Major venues include Firebird Motorsport Park (AZ), Tulsa Raceway Park (OK), Yellowstone Dragstrip (MT), and Texas Motorplex (TX). Check our Events page for the complete 2026 schedule and venue information.
Racing Classes
NHRDA offers 9 racing classes:
- Professional: Top Diesel, Pro Mod, Pro Street, Hot Rod Semi
- Sportsman & Index: Sportsman, Super Diesel (7.70), 6.70 Index, Super Street, Big Rig Bracket
The right class depends on your vehicle build, modifications, and performance capabilities. Sportsman classes are ideal for street trucks with basic modifications, while Professional classes are for highly modified race vehicles. Review the class specifications or contact us for guidance on which class best fits your truck.
All current NHRDA national records are listed on our Records page, including ET and MPH records for each class along with historical progression data showing how records have evolved over time.
No one under 16 years of age may operate any vehicle at NHRDA events. Age requirements for competition vary by class - consult the official rulebook for specific requirements and any restrictions for junior racers.
Registration & Entry
Bring your driver's license, vehicle registration, and proof of insurance. If you're a competitor, you'll also need to complete a W9 form for prize payouts. Download the W9 form and complete it before the event to save time.
Yes, day-of registration is typically available, but we strongly recommend pre-registering online to guarantee your spot and expedite check-in. Some events may have limited capacity, and pre-registration ensures your entry.
Entry fees vary by event and class. Specific pricing is listed on each event's registration page. Contact us at race@nhrda.com for current pricing information.
Membership
While membership is not always required for individual event participation, an NHRDA membership is necessary to compete for championship points and year-end awards. Membership also provides benefits like discounted entry fees and early event registration.
Contact us at race@nhrda.com or (855) 658-4353 for membership information and registration. Our team will guide you through the process and answer any questions about membership benefits.
NHRDA members earn points based on their performance at sanctioned events throughout the season. Points accumulate across multiple events, and championships are awarded at the World Finals. View current standings on our Point Standings page.
Spectators
Yes, spectator tickets are required for all NHRDA events. Tickets can be purchased online in advance or at the gate on event day. Pricing and ticket information is available on each event's page.
Absolutely! NHRDA events are family-friendly. Children under a certain age (varies by event) may receive free admission. Please supervise children at all times and ensure they wear proper hearing protection near the track.
Most venues allow coolers with food and non-alcoholic beverages. However, policies vary by facility. Check with the specific venue or contact us for details about the event you plan to attend.
Many NHRDA events offer camping facilities at or near the venue. Camping availability, pricing, and amenities vary by location. Check the specific event page or contact the venue directly for camping information and reservations.
General Questions
NHRDA offers various sponsorship opportunities for manufacturers, shops, and brands looking to reach the diesel performance community. Contact us at race@nhrda.com or (855) 658-4353 to discuss partnership options.
Yes! Follow NHRDA on Facebook, Instagram, and YouTube for event updates, race results, photos, videos, and the latest diesel drag racing news. Links to our social media pages are in the footer of this website.
The NHRDA World Finals is the championship event held each fall where top performers compete for national titles and year-end awards. It's the culmination of the racing season and features the best diesel drag racing action of the year. Check our Events page for the current World Finals schedule.
Event results are posted on our News page following each event. You can also check our social media channels for quick updates and live coverage during events.
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