Telemetry and lap analysis guides
Export steps for MyChron, AiM, RaceBox, VBOX, RaceChrono and 6 more loggers, plus how to compare laps and what GPS data can and cannot show.

Start with your recording
A worked lap comparison at Norwell
Read a measured lap comparison on Purple Sector’s public Norwell sample: lap times and speed, the timing basis, and what the evidence cannot prove.
Which telemetry file should I upload?
Find the file to export from your MyChron, AiM, VBOX, RaceBox, MoTeC, Garmin Catalyst or phone lap timer, with the steps and known limits for each.
How to compare laps with telemetry
Compare laps by position, read the time difference, and check braking, entry and exit evidence without mistaking a GPS difference for a driving change.
What GPS telemetry can and cannot tell you
Understand GPS lap timing, track recognition and estimated braking in Purple Sector, and why GPS-only recordings cannot establish measured pedal technique.
How Purple Sector AI coaching uses your data
How Purple Sector computes lap measurements, supplies evidence to AI Coach and labels estimates, with missing channels, sample reports and privacy.
Choose and compare
Race Studio 3 on a Mac
Race Studio 3 runs only on 64-bit Windows. On a Mac, use Windows on an Intel Mac, a Windows PC, or open MyChron and AiM .xrk files in a browser instead.
How to read MyChron data
Read a MyChron session in six steps: lap times, the time gap, the speed trace, minimum corner speed, RPM and water temp. Works on Mac or PC, in a browser.
Lap timer apps compared
Lap timer apps compared for track days: Australian prices, phones, external GPS, export formats and video for RaceChrono, TrackAddict, Harry's and RaceBox.
Garmin Catalyst vs RaceBox vs AiM Solo 2 for track days
Catalyst 2, RaceBox Mini, Mini S and AiM Solo 2 for track days: 25 Hz GPS on all, Australian prices, what each records and how you get the data off.
Kart data loggers compared
MyChron 6, MyChron 5/5S, Alfano 7, Unipro UniGo, RaceBox and phone apps for karting: GPS rate, inputs, prices and which software opens each file.
XRK to CSV: get MyChron data into a spreadsheet
Convert a MyChron or AiM .xrk or .xrz file to CSV: Race Studio 3 on Windows, or every channel and lap in one CSV from your browser, free.
MyChron software and apps compared
Race Studio 3, AiM's RaceStudio 3 app, PURPL, Purple Sector, Tenth Finder, Kart Track and LapSnap for MyChron data: phones, computers, AI coaching, prices.
AiM Solo 2 software and apps
Race Studio 3 is AiM's Solo 2 software, for 64-bit Windows. The other options on a Mac or phone: AiM's app, AimMac, Pushlapp, LapSnap and a browser tool.
Motorcycle lap timers and data loggers compared
SpeedAngle APEX, Starlane Stealth-5, AiM Solo 2, RaceBox Mini S and phone apps for track days: GPS rate, lean angle, software, prices and getting data off.
Track day telemetry for beginners
What to record on a track day, then how to read it: the lap list, the time gap, speed at each corner and the optimal lap. One change per session.
Optimal lap time (theoretical best lap), explained
An optimal lap adds your quickest time through each sector, from any lap. How Race Studio 3, RaceBox, VBOX and others work it out, and where it misleads.
How to analyse RaceBox data
Read RaceBox data step by step: lap list, two laps side by side, speed through the corners, then a time gap at every turn from a VBO export on a PC or Mac.
RaceChrono data analysis
Read a RaceChrono session step by step: mark bad laps invalid, compare to a reference lap, read the delta and speed graphs, then open a VBO on a PC or Mac.
How to read AiM Solo 2 data
Read AiM Solo 2 data step by step: download over Wi-Fi, the lap list, Time Compare, speed at each corner and the split report's theoretical lap.
Circuits turn by turn
Every turn in order: direction, shape and spacing, names where a source gives one, and published driving notes.
- Mount Panorama, turn by turn
- Phillip Island, turn by turn
- Sydney Motorsport Park Gardner GP, turn by turn
- The Bend International, turn by turn
- Queensland Raceway, turn by turn
- Lakeside Park, turn by turn
- One Raceway, turn by turn
- Albert Park, turn by turn
- Sandown Raceway, turn by turn
- Adelaide Street Circuit, turn by turn
- Ruapuna Grand Prix Circuit, turn by turn
- Hampton Downs International, turn by turn
- Wanneroo Raceway, turn by turn
- Winton National circuit, turn by turn
- Calder Park Raceway, turn by turn
- Ipswich Kart Club B Track, turn by turn
- Morgan Park Raceway, turn by turn
- Hidden Valley Raceway, turn by turn
- Symmons Plains Raceway, turn by turn
- Baskerville Raceway, turn by turn
- Mallala Motor Sport Park, turn by turn
- Highlands Circuit One, turn by turn
- Manfeild Circuit Chris Amon, turn by turn
- Taupō International Motorsport Park, turn by turn
- Teretonga Park, turn by turn
- Luddenham Raceway, turn by turn
- Collie Motorplex, turn by turn
- Pheasant Wood Circuit, turn by turn
- Wilby Motorsport Park, turn by turn
Guides by logger
Export steps, limits and GPS rates for the device on your dash.
Popular circuits
Layouts, lengths and turn numbers for each circuit.