Made for race directors and timekeepers

RaceClock

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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.

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

Ultimate Multi Tool-mtk V5.1 Link

The Ultimate Multi Tool (UMT) - MTK V5.1 is a specialized software module designed for mobile technicians to service MediaTek (MTK) based smartphones. It is widely considered an "outstanding tool" for professional use due to its compact yet highly functional design and its ability to handle complex firmware and security tasks. Key Features & Capabilities

Rating: 4.5/5

From a cybersecurity perspective, the existence of tools like v5.1 exposes a systemic vulnerability in the Android supply chain. If a physical adversary can gain access to a locked MTK device, the Ultimate Multi Tool can often bypass screen locks and data partitions, especially on older or poorly patched firmware. This undermines the entire premise of device encryption as a final defense. Furthermore, the distribution channels for this software are notoriously risky. Downloaded from file-hosting forums, modding communities, or YouTube description links, the executable is frequently bundled with trojans, keyloggers, or cryptocurrency miners. The user seeking to repair a phone may unwittingly install a Remote Access Trojan (RAT) on their own computer. The tool’s requirement to disable antivirus software and run with administrator privileges compounds this danger, creating a perfect storm of exploitation. Thus, v5.1 poses a double-edged threat: it compromises the security of the target mobile device while simultaneously jeopardizing the integrity of the technician’s PC. ultimate multi tool-mtk v5.1

Repair Functions: Restoring damaged IMEI numbers or repairing Bluetooth connectivity issues. The Ultimate Multi Tool (UMT) - MTK V5

He picked up the phone. It was ringing. An encrypted line. If a physical adversary can gain access to

Flashing & Firmware: Supports reading and writing flash memory to restore dead or malfunctioning devices.