Logger data and results
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Laps being compared
Race the laps
Every lap starts from the line together. Press play or drag the slider to see who is ahead, and by how much.
Speed round the lap
Time against the reference lap
Above the line a lap is behind the reference at that point.
Engine speed
Slowest speed through each corner, top speed and peak g-forces. Best in each column in green.
Each lap of these sessions: the official Speedhive time next to the logger's own.
Each driver's best time through every section, from all their uploads on this track and direction. Select a time to compare that lap.
Upload logger files
Alfano .zip exports from the ADA app, AiM MyChron .xrk or .xrz files, or .gpx tracks from a phone or watch. Several at once is fine, from different drivers and days. Race heats are matched to their driver and heat automatically, from the lap times, the logger's clock and which logger it is.
This upload
Uploaded from this browser
Delete removes a session from the site (press twice). Key link copies a private link that lets you delete it from another device; it deletes nothing. Keep it to yourself.
Good to know
- Uploads are public on this page under the driver's name.
- Race sessions are attributed by lap times: each lap from the logger is lined up against every driver's laps in every heat that day, and a real match agrees to within a few hundredths lap after lap. So a session always goes to the driver whose laps it is, whatever name is typed in, and nobody can post laps as someone else.
- Who it was comes from the lap times, the logger's clock against the heat start times, and whose logger it is (its serial number, from earlier uploads that matched for sure). When that isn't a sure thing, for example two drivers nose to tail, you get the three likeliest drivers with their odds to pick from.
- Sessions that don't match a timed heat (practice) are never filed under anyone without asking: you're asked who was driving.
- Only the GPS trace on the track is kept, not the file.
- Alfano files give speed, position, the logger's own g-forces and engine speed (if wired). GPX files give speed and position; g-forces are then estimated.
- A quick automatic check in your browser keeps bots out.
- Each upload gets a private delete key, kept in this browser. "Key link" above copies it as a link, so you can delete the session later from another device.