Easy manual sports timing
RaceClocker is a do-it-yourself tool for manual timing of sports races. Our app offers an easy and fast alternative to chip timing or stopwatches. For race directors, timekeepers or coaches is RaceClocker an excellent solution for high quality timing of your race.
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Made for race directors and timekeepers
This time - linked to an atomic clock - is running on our server, making sure that all devices you use for timing are synched. It results in precise timing from multiple devices concurrently. Timing accuracy is NOT depending on the speed of your connection.Learn more...
News and updates
Substackis where we regularly publish news, articles and announcements of new features around RaceClocker. You can sign up to receive news in email.

Get started for free
You canuse RaceClocker free of charge. Just create an account and get started. It's easy to set up and it works great.

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RaceClocker is free up to 10 participants per race. If you want to use it with more features you can upgrade at any time to RaceClocker Essentials or Premium. Have alook at our pricing.

What race directors say
"My compliments to your product and service. I have used RaceClocker for several events, and I have to say - I LOVE IT! Your program has made timing rowing head races very easy. It is easy to use, accurate, and probably the best feature is live results."
Gregg Hartsuff
Head Coach University of Michigan Men's Rowing
"We have been using RaceClocker for the past 4 editions of our annual ADR Regatta. Over the years we have seen it develop into a reliable and easy to use timing solution at very low cost. Among others live results and split times are what rowers enjoy at our event."
Giovanni Margaroli
Race Director ADR Regatta
"Thanks for a wonderful tool. We started using RaceClocker recently for our annual events as an upgrade from stopwatches, pen and paper and Excel sheets. It works smooth, simple, intuitive, accurate and easy. We spend a lot less time on post-race calculation and the live results are a bonus."
Wouter Op den Velde
DDS Rowing Delft, The Netherlands
RaceClocker key features
Import start list
Upload an Excel file or copy/paste your participant data from any other app to build your start list with no effort. Our import feature supports categories, wave starts and other meta data.
Time anywhere
Start, finish and split points of your race can be at any location. RaceClocker is cloud based and timing is managed from the timing dashboard. Timekeepers in the field can use any smartphone, tablet or laptop either online or offline.
Correct mistakes
RaceClocker includes multiple options to fix timing errors. Accidental timings can be 'undone' or assigned later to another participant. A full history of time stamps is kept. Backup timing data can be manually added at any time.
Time trial, waves and mass start
RaceClocker is great for time trial races where participants start one after another. Or for races where a wave or 'flight' of participants starts at the same time. Mass start races are also supported.
Live results
Results are published in real time so the crowd can follow along, either online or at the club house. Results are optimized for live display at your venue and can easily be published and shared.
Publish and archive
All timing registrations as well as final ranked results can be downloaded as Excel file for your archive or for further processing.
Create, manage and monitor race timing from the Timer Dashboard
Capture start, finish and splits from any laptop, tablet or phone
Publish and share live results during the race