See what your camera already records
Analyse your footage for lap times, racing lines and coaching where needed.
Start ImprovingFive channels. One upload.
Your action camera is already recording GPS position, accelerometer data, speed, and gyroscope orientation on every lap. Race Ninja reads it directly from the video file and gives you lap times, sector splits, racing lines on satellite imagery, and braking zone markers. Nothing to install, nothing to configure.
Your Perfect Lap
Every driver has sessions where sector 1 was nailed on lap 3, sector 2 peaked on lap 7, and sector 3 came together on lap 5. Your fastest sectors already exist. Just not in the same lap.
Your Perfect Lap stitches those sectors into a single composite video showing you the lap you're already capable of, with a theoretical time built from your real best-of-session data.
Theoretical best from session
See exactly where you gained or lost
Head-to-Head
Compare two laps side by side with synchronised video and racing lines on satellite.
Sector Analysis
Colour-coded sectors, speed zones, and equipment metrics for every lap.
AI Coaching
Session summary with strengths, weaknesses, and specific setup suggestions.
Show the world what you've got
Build videos with telemetry overlays. Download an MP4 ready for Instagram, TikTok, wherever. Share when you want to. Keep private when you don't.
Compare speed, lateral g-force, longitudinal g-force, and performance traces between any two laps.
See exactly where the time goes
Race Ninja breaks every session down sector by sector. See which parts of the track you nail and which ones wobble, where your typical lap leaks time against your best, and how each sector trends as the session goes on. Every chart points you at what to work on next time out.
Fuse your dashboard data
Running an Alfano, AiM, or other kart dashboard? Upload your session file alongside your video and Race Ninja time-syncs them automatically. RPM, EGT, and hardware speed appear on your video overlay, matched lap by lap.
Any track. Any kart. Any car. Anywhere in the world.
Drive somewhere new, upload the footage, and Race Ninja figures out where you were. It detects the circuit, splits your laps, and builds the telemetry. No manual setup.
Works with:
Simple, honest pricing
Choose what fits how you race. No hidden fees.
Subscribe
Best for regular racers. AI coaching, 1080p video, permanent hosting.
From £9.99/mo
Pay As You Go
No commitment. 1080p video, weather, sector detection. 365-day hosting.
£1.59 per analysis
From the blog
Tips, tutorials & updates
Brad Philpot breaks the 17-year Sutton Circuit lap record (and we proved his real time)
We don't often get to say this, so we'll enjoy it. One of our own has just rewritten the record books. Brad Philpot, racing driver and a Racing Director here at Race Ninja, has broken the lap record at Sutton Circuit in Leicester. A record that had stood for seventeen years. And...
3 min read
How accurate is GoPro GPS for lap timing?
It's the fair question to ask before you trust your lap times to a camera. How accurate is GoPro GPS, really? The honest answer is good enough for what most racers need, with a couple of caveats worth understanding. How often it measures Recent GoPros record GPS at 10Hz, ten posi...
2 min read
A faster Windows uploader, and a home for every Race Ninja app
You finish a session, pull the kart in, and the change you just made is still fresh in your head. That's exactly when you want to know whether it worked. Not three hours later on the drive home. The rebuilt Windows uploader is built for that moment. What the uploader does now Dra...
2 min read
Your data stays yours
Every lap you upload is private the moment it lands. It isn't shared with a team. It isn't pooled into anyone else's comparison. It isn't shown to another driver. And it never will be unless you say so.
You decide what happens next. Want your coach or your squad to see a session? Share it. Want to keep a scrappy practice day to yourself? Keep it locked. The choice sits with you on every single lap, and you can change your mind whenever you like.
Your driving is your edge. We're not in the business of handing it to the people you line up against. So nothing leaves your garage on its own. Not your telemetry, not your racing line, not your times.
Private by default
No setting to hunt for. You upload, you analyse, and the data is visible to you and nobody else.
Shared only when you choose
One toggle shows a lap to your team or a rival, or puts it on a public leaderboard. Flip it back whenever you want.