
The Circuit 2026 presented by Summit Racing –
April 30-May 3
Registration Opens Jan 16 for returning TC25 Racers (and their copilots if they want to race this time). PLUS, we are allowing Short Circuit 2025 racers register early as well. Public Registration on Jan 17 at 8am Eastern.
Host: Tulsa Raceway Park – Second Track: Thunder Valley Raceway Park
The Circuit: 3 Days, 300 Miles, in your RACECAR!
Street Cars Only!
Event entry of $350 includes Pre-Party Dinner, 2 event shirts, one event decal kit, Party Entry for Racer and Co-Pilot, 3 days of track entry fee for both driver and one passenger, and one tech card to both Tulsa Raceway Park and Mo-Kan Dragway.
A portion of the proceeds from the event will be donated directly to a Tulsa, OK Children’s Charity.
Registration: January 16
We are welcoming 200 racecars!
RETURNING RACERS (and if their 2025 Co-Pilot wants to race TC26) will receive discounted entry. Entry for Returning Racers will be $250. Returning Racers (and potential Co-Pilots turned Racers) will also get Early Entry, open for 24 hours (8am to 8am).
Early List submissions will be open the following 4 hours (8am until Noon) Entry: $350. The “Early List” will open soon.
Public Registration will open at Noon for the few remaining spots. Entry: $350.
Additional Crew available for $50 each. No transfers or reselling of entry allowed.
Road Trippers – Be a part of the fun, without the headache of racing! Special Windshield Decals, Special Up-Front Parking, Snacks/Drinks, Track Entry. $200 for Driver and 1 Copilot. Additional riders – $50 each.
Event Schedule
Early Tech on Thursday. 12-4PM – $50, directly donated to the charity, limit of 60 teams
Thursday
12-4pm – Early Tech and Trailer Drop (anyone can drop trailer)
6-10pm – Dinner open to Road Trippers, Racer and Copilots, at local restaurant. You want to be here! *extra meal $20, available at registration.
Friday
8:00am – Gates open
Tech is open from 9am until 2pm. Driver Meeting at 9:45am. Track is Hot from 10am to 4pm. Timeslips due by 5pm.
Saturday
10:00am – Gates open
Track Hot from Noon – 5pm.
The Circuit Party – 6pm-10pm
Participants can expect a night of fun and friendly competition to unwind after two days of racing.
Sunday
Track open from 10am until 3pm.
Awards at 3:30pm.
We are not regulating the vehicles your family or friends may be following along with. We welcome and encourage you to bring them to this event. If your race vehicle must go onto a trailer or be towed in any manner at any time, you will be disqualified. It must run 100% of the time under its own power. Exception: pushing by hand is accepted if you run out of gas.
VEHICLE RULES FOR ALL CLASSES
*All entries must have current and legal vehicle registration and insurance with paperwork that matches the VIN and license plate on the car.
*No rental cars allowed.
*Vehicles in competition must have functional headlights, taillights, brake lights, turn signals, HORN, and a rearview mirror. Trailer must have safety chains and working brake lights.
*Equipment rules apply to both the street and track portions of the event.
*All tire rules apply only on the drag strip and not for the street drive.
*All vehicles must meet NHRA safety rules for the e.t. and speed they are capable of, and drivers must be IHRA or NHRA licensed if required. The Circuit officials will not accept time slips that are quicker or faster than the car or driver’s tech’d legal e.t. and mph. Running quicker than the safety equipment or driver’s race license allows is cause for disqualification at the discretion of the race director.
*Engine Swaps are allowed as emergency replacement only. Racers Can Not swap engines to race.
*”Beam Break” is allowed and will result in a 20 Second ET.
*In Naturally Aspirated classes, the engine may not use power adders of any kind.
*In Power Adder classes, the engine must use a supercharger, turbocharger, nitrous oxide, or some combination thereof.
*In Small-Block classes, engine displacement must be 430 ci and below, and the engine may not be a Mopar 426-based Hemi, a Chrysler early Hemi, a big-block Mopar, a big-block Chevy, a big-block Ford, or an FE Ford.
*In Big-Block classes, engine displacement must be 431 ci and above. All Mopar 426-based Hemis, Chrysler early Hemis, big-block Mopars, big-block Chevys, big-block Fords, and FE Fords will run in Big-Block classes regardless of displacement.
*It’s the responsibility of the racer to know and comply with the rules; passing tech inspection does not constitute a right to remain in competition if rules violations are discovered later.
*Vehicles must compete in the slowest class for which they are eligible.
*Vehicles with rule variations may be classified at the race director’s discretion.
*Entries that are disqualified from competition are not eligible for a refund of registration fees.
*The Circuit uses a .400 Pro Tree for all classes.
*Trailer rule: Single axle…
NO SUPPORT VEHICLES (Not Road Trippers)
•Vehicles in competition may not be led or followed at any distance by support vehicles of any kind. A support vehicle is one used to supply, or with the intent of supplying, any rescue efforts or to carry anything for a competitor, including luggage, tools, fuel, repair parts or spares, and helpers or crew.
•All vehicles must be driven under their own power during the entire competition and may not be towed, trailered, pushed, or hauled at any time. The exception is in the event of an emergency in which a vehicle needs to be removed from the roadway or other dangerous situation, in which case assistance may be used to move the car a short distance to a safe area, for example, to the next highway exit.
•Violation of the support-vehicle and crew rules is cause for immediate disqualification at the race director’s discretion.
RV/Campers – We encourage racers to bring the family. If a racer is using a camper/RV for sleeping, you must treat it as a hotel room (unless towing with racecar). You can not store clothes, fuel, or supplies of any kind during open track or drive time. Racers MUST carry all needs with them in their car/trailer. Racers MUST park far away from camper/RV. We will have designated parking for Campers/RVs.








