Find where the time went.
RacerSense Telemetry reads the laps iRacing and your MyChron already record, and shows you - corner by corner - where your lap time went, against your own best or a team mate's.
Windows 10 or 11, 64-bit. Version 1.0.227, built 22 October 2026. About 93 MB.
Sample data. Below the line is ahead of you.
Three minutes. Then it keeps itself up to date.
Download it
An installer, about 93 MB, with everything inside it - no .NET runtime to install and nothing to unzip. You only ever download it once: after that the app updates itself.
Check it is ours
The installer and the app are signed by Jamieson Enterprises Limited, verified by Microsoft. To see it: right-click the installer, Properties, then the Digital Signatures tab.
The certificate is new, and SmartScreen judges new ones by how many people have run them. For a while you may still see "Windows protected your PC": click More info, check the publisher says Jamieson Enterprises Limited, then Run anyway. If it says Unknown publisher, do not run it - tell us.
If your browser holds the download back, open your downloads (Ctrl+J) and choose Keep. To check the file byte for byte, in PowerShell in the folder you saved it to:
Get-FileHash .\RacerSense.Telemetry-win-Setup.exe -Algorithm SHA256
It should print A8E2745F420B697D903DBC0C74049DC64B43A40CB92483B8826F1DEF00032A45
Install and open it
Double-click the installer. It installs for your Windows account only - no admin password - puts RacerSense Telemetry on the Desktop and in the Start menu, and opens on your latest day.
It looks in Documents\iRacing\telemetry first. Recordings somewhere else - a MyChron folder, a team's shared Google Drive - go in under Settings › Folders.... Nothing there? Turn telemetry on in iRacing with Alt+L, or set it to always record.
Add your licence for the driver report
The driver report is written on our server, so the app needs the licence we sent you - no account, no card. Open Settings › Report access..., paste it and save. It is kept on that machine only, encrypted for your Windows account.
Everything else - days, runs, charts, the map, History and Setups - works without one.
Your laps, finally explained.
Sessions
A day and its runs in one place, with what changed since the run before - down to which setup file was loaded.
Charts and corners
Every lap against distance, a track map you can point at, and any stretch pulled out by dragging across a chart.
Team mates
Up to four of their laps beside yours, each in its own colour, picked straight from your shared folder.
Suspension and dampers
Ride height, damper travel and speed round the lap, and a damper histogram for every corner.
Driver report
Where the time went, what to work on and a drill for next time, in plain language. You can ask it questions.
Setups and History
Every setting you ran at a track with the pace it gave, and whether you are getting quicker week to week.
Good to know
What leaves my PC?
Nothing, until you ask for a driver report. Then that session's numbers - lap times, corner speeds, braking points, the setup - are sent to be written up. No personal details and no iRacing account.
Does iRacing need to be running?
No. It reads sessions you have already driven, so you can go through them the next morning.
How do I update it?
You don't. Each time it opens it checks, downloads in the background, and offers Restart to update. It never restarts on its own.
Something went wrong
There will be a crash.log in Documents\RacerSense\. Send it to us - it usually says exactly what happened.
Tell us what you think
Anything that confused you, looked wrong, or that you expected to find and didn't.