USDR is invitation-only. Tell us about yourself and your accomplishments, and we'll follow up if you make the field.
Cars must be built from official AASBD kits and follow AASBD specifications. USDR is an independent invitational and is not affiliated with the All-American Soap Box Derby. See the general AASBD Rule Book (PDF) for full rules.
For the most up-to-date official rules, build plans, and inspection requirements, please visit the official website: www.soapboxderby.org. Rules can change. Always verify the latest version directly from the official source before building or competing.
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