Track day telemetry overlay
Turn raw onboard footage into a session debrief. Overspeed lays a lap timer, a live delta to your best lap, and a clean racing line over your video, all synced to the data you already logged.
free to try, works right in your browser
−0.42
DELTA
The data that matters
The channels that make this discipline read on screen, synced to your footage.
Lap timer and delta
A broadcast-style timing tower with current lap, last lap, and a live delta to your best. The moment you gain or lose time shows on screen, corner by corner.
The racing line, on the map
Your GPS trace drawn as a clean track map with a moving marker. Spot the line you took into the apex and exactly where you ran wide.
Speed and G-force
Entry speed, minimum corner speed, and lateral G overlaid on the footage, so your onboard finally explains why that lap felt fast.
Works with the gear you already use
Frequently asked questions
Can I sync a RaceChrono CSV to my GoPro footage?
Yes. Import the CSV (or VBO) export from your lap timer, load your GoPro clip as a reference, and line the data up to the video on the timeline. Overspeed maps speed, lap, and GPS automatically.
Does it show a live delta to my best lap?
Yes. Add the lap timer widget and it shows current lap, last lap, and a running delta to your fastest lap from the same session.
Is phone GPS enough, or do I need a dedicated lap timer?
Either works. A dedicated lap timer or VBOX gives the cleanest GPS and lap data, but any CSV with GPS and timestamps will drive the map and speed gauges.
Can I design a custom widget for my track day overlay?
Yes. Describe what you want, like a combined delta and sector-time panel, and the AI Studio builds a custom, fully styled widget. Refine it in plain language and save it to reuse every session.
Make your footage look broadcast-grade
Pick a template or build your own look, drop in your data, and export an overlay ready for your next edit.