SoapboxDerbyNet
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Live · soapboxderbynet.com

The whole race day,
on one screen.

Follow your racer, watch the brackets unfold, and catch every finish. SoapboxDerbyNet is the race system that connects timers, displays, and phones across the venue — coordinated by hardware that just works.

Soap box derby illustration: kids racing wooden cars down a tree-lined street

What's inside

A full race-day operations stack.

Everything from the start gate to the awards table, talking to each other in real time.

Hardware-coordinated timing

Start gates, finish gates, and signs all talk over MQTT. No missed heats, no scribbling on clipboards.

Tournament formats that fit

Round-robins, single- and double-elimination, configurable per class. Brackets generated from the schedule you actually run.

Live kiosks & LED signs

On-deck, standings, and emergency announcements broadcast to every screen and sign across the venue.

Spectator stats & My Races

Public, token-gated pages so families can follow a pinny from the bleachers, the car park, or three time zones over.

Works on-site, syncs to the cloud

The race-day Pi runs the show even with no internet. This server is the always-on twin — for the spectator feed and remote standings.

Open source, built on DerbyNet

Forked from DerbyNet by Jeff Piazza, extended for soapbox derby. MIT licensed.

Spin up a sandbox and poke around.

Each sandbox is an isolated database on this server. Try the coordinator UI, generate a schedule, push a virtual heat through — nothing you do touches anyone else's data.

Open the Race Console