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Race Ninja sector analysis showing where a driver is losing lap time around a kart track
Tips & Guides Karting Telemetry

Where am I losing time? How to find the corners that cost you

Every guide says brake later and hit the apex. None of them tell you which corner is actually costing you. Your own footage does. Here's how to read it and find your next few tenths.

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Antony Vickery
· · 4 min
GoPro Hero 11 GPS data turned into lap times and a racing line for karting
GoPro Tips & Guides Telemetry

GoPro Hero 11 GPS for racing: the value pick for telemetry

If you want one camera for racing telemetry without spending a lot, the GoPro Hero 11 Black is hard to beat. It has GPS, the data it records is genuinely good, and now that it's a couple of models old you can find it cheap. What GPS the Hero 11 has The Hero 11 introduced a newer...

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Antony Vickery
· · 2 min
GoPro Hero 12 shown without GPS telemetry, with the Hero 11 and 13 as alternatives
GoPro Tips & Guides Telemetry

Does the GoPro Hero 12 have GPS? (and what to do about it)

Straight answer: no. The GoPro Hero 12 Black has no GPS. And unlike a setting you forgot to switch on, there's nothing you can do about it. GoPro took the hardware out. This catches a lot of racers off guard. You upgrade from a Hero 11 expecting more of everything, and your telem...

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Antony Vickery
· · 2 min
GoPro Hero 13 GPS data turned into a lap time and racing line on a kart circuit
GoPro Tips & Guides Telemetry

Yes, the GoPro Hero 13 has GPS (and you can time laps with it)

Yes. Hero 13 Black has built-in GPS. Hero 12 does not. How 10Hz logging works, which Heros to buy, and how to get free lap times from your footage.

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Antony Vickery
· · 3 min
Race Ninja lap analysis and racing line next to a plain telemetry video overlay
Telemetry GoPro Tips & Guides

Telemetry Overlay alternative for racers: when you want analysis, not just a HUD

If you've been using Telemetry Overlay, or you're weighing it up, here's an honest take on when it's the right tool and when it isn't. Telemetry Overlay is genuinely good at what it does. It reads GPS and sensor data off a GoPro, DJI, Insta360 or dozens of other devices and burns...

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Antony Vickery
· · 2 min
A racing line drawn from GoPro GPS data on a kart track map with two laps compared
Tips & Guides Telemetry Karting

How to read a racing line from your GoPro footage

Everyone talks about the racing line. Far fewer people actually look at their own. The footage on your GoPro already holds it, you just need to draw it out. Because GPS records where you were several times a second, your exact path around the track is sitting in the video file. N...

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Antony Vickery
· · 2 min
A GoPro on a kart alongside a MyChron data logger, comparing lap timing options
Karting Telemetry Tips & Guides

GoPro vs a data logger (AiM/MyChron) for karting: do you still need the hardware?

A MyChron on the steering wheel is almost a rite of passage in karting. But cameras got GPS, software got smart, and a fair question now is whether you still need to buy the logger at all. The honest answer: it depends what you're doing. Here's a straight comparison. What a data...

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Antony Vickery
· · 2 min
DJI Osmo Action with its GPS Bluetooth Remote feeding lap times into Race Ninja
DJI Tips & Guides Telemetry

DJI Osmo Action GPS for racing: what the GPS remote gives you

If you run a DJI Osmo Action, there's one thing to get straight before you rely on it for telemetry. The camera itself has no GPS. To get speed and position data you need DJI's GPS remote. Once you've got that, a DJI is a strong telemetry camera. No built-in GPS, and that's fine...

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Antony Vickery
· · 2 min
GoPro GPS accuracy shown as a racing line and lap times on a kart circuit
GoPro Tips & Guides Telemetry

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...

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Antony Vickery
· · 2 min
GoPro Hero 10 GPS sample rate explained with a kart racing line and lap times
GoPro Tips & Guides Telemetry

GoPro Hero 10 GPS: the 18Hz to 10Hz change explained

Yes, the GoPro Hero 10 Black has GPS, and it works well for lap timing. But there's a quirk worth knowing if you're researching this camera. GoPro changed its GPS sample rate partway through its life, and it confused a lot of people. The 18Hz to 10Hz change The Hero 10 launched r...

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Antony Vickery
· · 2 min
GoPro mounted on a kart with lap times and sector splits pulled from its GPS data
Tips & Guides GoPro Telemetry

How to get lap times from a GoPro (no extra hardware)

Your GoPro is already a lap timer. You just can't see it yet. Every time you record a session, a Hero with GPS switched on logs your position about ten times a second, tucked into the video file right next to the picture. That's the same data a transponder or a data logger captur...

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Antony Vickery
· · 3 min
GoPro camera settings screen showing the GPS option being switched on for lap timing
GoPro Tips & Guides Telemetry

GoPro GPS not working? Fixes, and how to know your data is good enough to race

You filmed a great session, went to check your lap times, and there's no GPS data. Frustrating. The good news is that it's almost always one of a handful of simple causes, and they're all easy to fix. Start here: is GPS actually on? GPS is a setting, and it can be switched off. O...

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Antony Vickery
· · 3 min