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The DIY Reaction Light System for Your Training
Professional reaction training for sports clubs, schools and home use. Affordable, infinitely flexible and completely app-free.
Discover the Games
From reaction tests to team training – tap a game for more details.
Target Touch
Reaction
Whac-a-Mole
Simon Says
Memory
Hunt
Shuttle Run
Bomb
Zombie
Tabata
Domination
Sorting
Red Green
Musical
Why Puck Racer?
⚙ Affordable & DIY
Complete hardware under 20 € per puck. Open-source PCB, numerous 3D-printable adapters and a great project to build yourself.
⚡ Professional Training
Over 27 games, detailed statistics, training plans and CSV export. Developed with PE teachers and coaches.
🔒 Private & Independent
No subscription, no cloud, no app. Runs in any browser on any device. Your data stays with you.
📡 ESP-NOW Radio Technology
Over 50 m range, automatic channel selection and reconnect. No internet needed – the pucks communicate directly.
🌐 7 Languages
The interface is available in German, English, French, Spanish, Italian, Chinese, ....
🔋 4+ Hours Battery
Rechargeable 18650 battery with intelligent protection circuit. OTA updates for coordinator and pucks via the web interface.
Ready to Get Started?
Try the interactive demo or learn how to build your own system.