Dominatethe track.

The most precise karting GPS lap timer on the market. Every tenth counts.

Karting GPS app: millisecond timing, sector analysis, lap comparison on any circuit.

Why OnRace for karting?

In karting, races are won by hundredths of a second. OnRace gives you the same analysis tools as professional teams — in your pocket, for free.

Whether you're a weekend leisure driver or preparing a championship, OnRace records every lap, every sector and every data point to help you improve faster.

Compatible with all karts: Rotax, KZ, OK, KZ2, Baby, Cadet, X30. No extra hardware needed — just your smartphone.

Karting Features

Everything you need to improve

GPS timing to the millisecond

Satellite accuracy on every lap. Automatic start line detection, no input required.

Sector analysis

Split the circuit into sectors. See at a glance where you gain or lose time vs your best lap.

Lap comparison

Overlay two laps to spot differences to the metre. Find areas for improvement instantly.

Live leaderboards

Compare your times with the OnRace community. Browse best laps by track and category.

Top speed & G-force

Top speed on every straight, G-forces in every corner. Pro data, now for everyone.

Instant sharing

Share your full session with one link. Your coach or mechanic can review your data on any device.

How does it work?

01

Download OnRace

Free on App Store and Google Play. Ready in under a minute.

02

Arrive at the circuit

Select your circuit from our database. Not available yet? Contact us to get it added.

03

Start recording

Tap Record. The app logs every lap in the background while you focus on driving.

04

Analyse & improve

Review lap times, sectors and comparisons. Share with your team.

Frequently asked questions — Karting

Ready to dominate the track?

Download OnRace for free and start analysing your lap times from your next karting session.