Stint
Telemetry

Lap timing from your phone or a RaceBox. All the analysis to dig through. A debrief so you know where to look first.

G-G Plot01

Speed095mph

Lat G0.13g

Gap to opt+0.06s

Lap times02

1:49.90

1:55.19

1:49.10

1:50.39

1:49.65

1:45.08

1:46.29

OPT

1:44.80

Lap analysis · L6 vs optimal03

Time delta · vs optimal04

+0.06 s

Braking profile05

Best sectors06

Best sub-sector by lap

00:09:50.00Lap 06

Turn 507

78 in · 59 min · 59 out mph

Brake G0.06g

Long G-0.06g

Lap clock0:35.73

Dist1120m

Peak G1.35g

Sample25Hz

Turns11

DateJun 21

Top speed123mph

Sectors3

TurnT5

Laps7

Length2.12mi

Session21min

Optimal lap1:44.80

Best lap1:45.08

Avg speed073mph

On the table+0.28s

Coasting3.9%

Race engineer · T5*Verbatim

Brake 9 ft earlier into T5 and commit to a firmer peak.−0.08s

Your entry ran wider than the optimal pass, and that extra load was there in the reference lap.

Helmet off. Debrief on.

Every session, Stint measures your best lap against your optimal and writes the debrief — so you know where to look first.

Best lap vs. your Your quickest time through each part of the track, stitched into one lap.

Time on the table

0.00s

Where it went*Time to gain

T5Brake 9 ft earlier into T5 and commit to a firmer peak.Your entry ran wider than the optimal pass, and that extra load was there in the reference lap.0.08s

T6Open T6 a touch earlier on entry and let the car breathe mid-corner.You arrived 2 mph slower, yet still carried 1 mph more minimum speed; the lost time sits in the corner flow.0.09s

T3Brake 13 ft later into T3 and build the initial bite more firmly.Your best lap was earlier and softer on the brakes, while the reference pass stayed cleaner through the middle and left pace on the table.0.06s

*Word for word from Stint’s debrief of this session. Unedited.

From the paddock to the desk.

Your session follows you everywhere. Phone in the car, iPad over lunch, the full desk at home. Each one picks up right where the last left off.

One tap. Then just drive.

Hit record and drive. Stint finds the start/finish line and times every lap and sector on its own. Phone GPS gets you going; a RaceBox at 25 Hz takes the debrief down to the corner.

Race yourself. Live.

A live delta against your best, last, or optimal lap, on screen while you drive.

Insight, while the tires are still warm.

Lap times, splits, and the debrief hit your phone before the next run — in time to change something.

What a RaceBox adds ↓

Uncut telemetry.

Stack a whole day of laps, zero in on any stretch of track, and build the view you want to work in — on a screen with room for all of it.

Lap on lap on lap.

Was that corner a habit or a one-off? Overlay up to nine laps — from this session, another day, or another driver on the track’s Leaderboard.

Any stretch. No stretch.

Judge one corner without the rest of the lap in the way. Narrow to a sector, a turn, or any stretch you drag out, and every chart and reading is recomputed for just that piece.

Built your way.

Sixteen panels and twelve telemetry channels — map, video, traces, tables — that you show, hide, and order yourself. Keyboard shortcuts cover playback, scope, and lap selection.

Total recall.

Every session you have recorded, in one list. Filter by track, car, tire, conditions, or personal bests; search by track or car; sort by date or best lap.

getstint.app/dashboard/session

Every track, every turn.

Reference lines, turns, and sector splits come with each North American track we support, so your data means something from lap one.

View all tracks

Don’t see yours? It’s probably next. Request a track →

Ask us anything.

01I'm new to track days. Will this help me?

Yes. Stint gives you the debrief a good instructor would — plain English, back in the paddock, after every session. Beginners get a short list of what to work on next run, not walls of raw data.

02What GPS devices work with Stint?

Any RaceBox device — Mini, Mini S, or Micro — over Bluetooth, or the GPS already in your iPhone or iPad. A RaceBox is what we recommend: your phone fixes position about once a second, a RaceBox twenty-five times, and corner-level detail needs the higher rate. The essentials still run on phone GPS — lap timing, a live delta, and a debrief sector by sector — just painted with a broader brush.

What the sample rate changes

Phone GPS~1 HzRecommendedRaceBox25 Hz

Lap detection & timing~1.0 s~0.04 s

Live delta vs your bestCoarseYes

Sector splits & optimal lapWith good GPSYes

Race engineer debriefPer sectorPer corner

Turn-by-turn analysis—Yes

Brake markers & racing line—Yes

Coasting segments—Yes

Video sync & data exportYesYes

Stint reads the live stream, not sessions stored on the device. If a Mini S or Micro is left standalone-recording below 25 Hz, it streams at that lower rate — turn standalone recording off for full 25 Hz. · Stint is not affiliated with RaceBox

03How accurate is the lap timing?

Built-in phone GPS samples at ~1 Hz. Stint interpolates each crossing between fixes rather than rounding to them, so phone timing is good to roughly a tenth — fine for tracking your PBs, less ideal for tenths-level comparisons. A RaceBox Mini streams 25 Hz for ~0.04 s precision, finer than the pro-grade GPS loggers most paddocks run — which is why we recommend one. Timing is only half of it: at 1 Hz a corner is two or three points, and interpolating between them just draws a straight line through the apex. At 25 Hz you get a fix roughly every meter — the resolution turn-by-turn work needs to show your actual line, apex and brake point. Automatic start/finish and sector detection work on either.

04Can I export my data?

Yes — all of it, any session, any time, in a format something else can read. Nothing is held back.

Channels · up to 25 Hz

GPS position · Speed · Longitudinal, lateral and vertical G · Lap number, on every sample. Per-lap times and speeds come with the JSON export.

Export formats

CSV: Every sample, one row each — straight into Excel, Sheets, or your own notebook.
GPX: Position and timestamps in a format any mapping or telemetry tool already reads.
JSON: The same samples, plus the session itself: your notes, and a time and speeds for every lap.
MP4: Your video, with or without the data on it, for the group chat.
SQLITE: Your whole history in one download: every session, every sample.

Sessions sync across your devices · Export from phone, tablet, or desk

05Does Stint work offline at the track?

Yes. Download track data ahead of time over wifi or cell, and a full session runs with no signal at all — lap timing, deltas, sector splits, and the full analysis all work offline on the device. You'll still get a debrief offline, generated on-device; the fuller cloud debrief and syncing across your phone, tablet, and the web both need a connection. Back in range, open the app and pull to refresh — the day goes up, and the cloud debrief follows.

Still curious? hello@getstint.app

Helmet off. Debrief on.

From the paddock to the desk.

Uncut telemetry.

Every track, every turn.

Ask us anything.

Your best lapis out there.

Your best lap
is out there.