Race program · 2026 seasonSetup · Race day · Derby history

Three cars in a close Akron heatColumbus Metropolitan Library via DPLA and Wikimedia Commons · No Known CopyrightPhoto record + credits

The speed issue

Soapbox Speed Lab

Build straighter.Race smarter.

Practical setup guides, race records, and a private workshop for teams chasing safe, legal, repeatable speed.

Start with the Setup Lab Find your next race

Independent race knowledge. Official rules, plans, inspectors, and event sources remain the authority.

IN THIS ISSUE

Start with the job in front of the team.

Four direct routes through the program. Each keeps the rule source, measurement state, and next decision visible.

A long row of hand-built Soap Box Derby cars and racers waiting beside a large scale under inspection tents in 1953 — **Cars queue for the 1953 weigh-in**Columbus Metropolitan Library via DPLA and Wikimedia Commons · No Known CopyrightPhoto record + credits

RACE WEEKEND

The next flags on the calendar.

These are the next youth-racing listings in the saved schedule, ordered by date. Open the published host source before registering, traveling, or relying on a format.

Aug 8–92026

ISBD invitational + Rally

Buc-N-Eer Invitational and Akron Rally

Derby Downs, Akron, OH · Official city listing

Published source

Aug 82026

ISBD Rally

Ogallala August Rally

Ogallala, NE · Official host listing

Published source

Aug 22–232026

ISBD Rally

Owensboro Rally Race

Owensboro, KY · Official ISBD schedule

Published source

Open the complete race schedule Save the race calendar

A young racer and a Shell representative inspect a long wooden Soap Box Derby car on a raised stand in 1953 — **A 1953 car goes through inspection**Columbus Metropolitan Library via DPLA and Wikimedia Commons · No Known CopyrightPhoto record + credits

FROM THE WORKSHOP

Speed is a chain of evidence.

A competitive car preserves energy only when every upstream reference can be repeated. Record the untouched car, work in dependency order, and reopen each affected check after a change.

Run the complete setup workflow

Fictional Race Shop pit coach in a red helmet beside a gravity race car — Illustrated pit coach · guidance comes from the team's saved records, not a magic setting.

MY RACE SHOP

Your notes should outlast the weekend, and your memory.

Keep one active car, the last setup state, every run, wheel swap, weather note, lane, and track observation together in a private team workspace.

CarBaseline + wheel set
RunsHeat + lane + weather
TestsOne change at a time
TrackRoute + surface evidence

Open My Race Shop

DERBY NATION

The people and places behind the finish line.

Published records stay tied to their source. Similar names remain separate, and hometowns are not turned into invented race-city affiliations.

THE ARCHIVE

Cars, crowds, and ninety years of becoming faster.

Every reproduced image keeps its source record, creator information, rights statement, and web-copy note.

Young 1952 Soap Box Derby city champions in star-pattern uniforms cheering from a crowded railing outside Akron's Rubber Bowl — **Race Week, 1952**Columbus Metropolitan Library via DPLA and Wikimedia Commons · No Known Copyright

Busy indoor 1938 Soap Box Derby paddock filled with handmade cars, young racers, families, and officials in Boston — **Boston paddock, 1938**John B. Sanroma / Boston Public Library · No Copyright–US

Poster arranging 72 illustrated classic Soap Box Derby car profiles in chronological rows from 1933 through 1999 — **Evolution of design**Bill Wrigley via Wikimedia Commons · CC BY-SA 4.0

Open the full photo archive Read the Derby Tech research desk Explore Ultimate Speed history

POCKET RULE GUIDE

The current official rule stack controls.

Authorized written clarification resolves ambiguity. Soapbox Speed Lab explains measurements; it never grants permission to alter a controlled part.