Heading to Spectrum at the Oregon Convention Center? Please plan extra travel time. Beginning September 11, 2026, southbound I-5 will be closed between I-405 and I-84 for up to five weeks. Expect significant delays on nearby roads and alternate routes.
Check TripCheck before you leave, follow posted detours, and consider public transit. Visit ODOT’s project page for the latest closure updates.
Getting to Spectrum: I-5 Travel Alert
Heading to Spectrum at the Oregon Convention Center? Please plan extra travel time. Beginning September 11, 2026, southbound I-5 will be closed between I-405 and I-84 for up to five weeks. Expect significant delays on nearby roads and alternate routes.
Check TripCheck before you leave, follow posted detours, and consider public transit. Visit ODOT’s project page for the latest closure updates.
Each competitor must build his or her own race car.
All cars must conform to the following specifications:
Length – maximum 18". Cars cannot extend beyond, over, or above the start gate pin (pin is 1-1/2" high). A 1/2" wide bumper in the center of the car both on the front and the back is required to make contact with the pin. See illustration.
Width – maximum 6".
Height – maximum 6".
Weight – maximum 1 lb. 8 oz.
Race cars can only be gravity powered.
Race cars must use at least three maintenance supply parts (wood does not count).
Glass may not be used on race cars.
Approved yellow competition wheels provided by the affiliate for the current competition season must be used and may not be altered or modified (2 large and 2 small).
Competition Instructions
Test the car on the track to make final adjustments before check-in.
Check your car in with a race judge.
Race cars that pass the check-in process are placed in quarantine and can no longer be tested or modified.
Race cars that fail the check-in process will not be allowed to race.
Competitors will be called to the racetrack by their number.
Cars are raced twice, once down each lane.
In the event the car does not cross the finish line under its own power, a time of 10 seconds will be marked for each incomplete run.
If, during a race on either lane, a part on a car, including a wheel, falls off, a time of 10 seconds will be marked for the incomplete run.
Total competition time is the sum of the two runs.