Lap timing that tells you the truth.
Lap timing for club track days. Bring the files from the logger you already own and get every lap timed, or put the day’s timing on the clubhouse screen. Free for racers, permanently.
Or drop a file on Import laps and see your laps first. Nothing leaves your browser until you save.
Run a circuit? What venues get
Import, or record live
Files from the logger you already own — SpeedAngle, VBOX, RaceChrono, down to a hand-made CSV with a position and a timestamp — or live from a RaceBox through the Apex Android app, which is not in the Play Store yet.
Lap times you can trust
The same lap engine runs on your phone and on our servers, so the two cannot disagree. On real outings it matched a commercial lap timer to about 8 ms.
Share on your terms
Private, friends, or public — chosen per outing. The venue gets your times; the trace of where you went stays yours.
Ask us for the Android app: it is not in the Play Store yet, so this opens a mail to support@apexracetiming.com, and a person answers it. What the app needs, and how installing it goes.
Find the circuit you drive.
Every venue on Apex, with the tracks it runs, the configurations you can actually drive, and the ranked and practice boards for each. No account needed to look.
Every lap you have ever driven, in one place.
- Where the time went — the lap on the circuit, coloured by speed, with a ribbon showing where you gained and lost, imported laps included.
- Your best, from any day — put a lap beside your best at this circuit from another outing, or beside a friend’s where they have shared it with you.
- Rolling best and consistency — the quickest lap-length stretch you drove, and how close your laps were to each other.
- A picture when you share — a public outing’s link previews with your name, your best and the circuit’s outline.
Today · 14 laps1:04.612
Today · 11 laps1:05.108
Today · 6 laps1:06.940
A pit wall for the clubhouse, and a device pool that runs itself.
- Live timing on any screen — tower, speed-coloured map and delta ribbon, readable at ten metres, and on every spectator’s phone with nothing to install.
- Run the day — sessions and groups on a running sheet that copes with rain, reordering and a skipped group.
- Lend devices, keep the times — issue a pooled RaceBox to a walk-up rider; the data follows whoever holds it.
Radical SR31:01.884
Cayman GT41:03.412
Elise Cup 2501:04.612
Not every source measures the same lap the same way.
A phone at 5 Hz carries about 146 ms of timing error — wider than the gap between first and third at most club events. Ranking it against a 25 Hz logger would produce a board whose order partly depends on which phone you own. We keep two boards instead, and say which one your laps are on and why.
| Source | Rate | Typical error | Board |
|---|---|---|---|
| RTK logger100 Hz | 100 Hz | 1 ms | Ranked |
| RaceBox25 Hz | 25 Hz | 30 ms | Ranked |
| Good phone GNSS10 Hz | 10 Hz | 85 ms | Practice |
| Typical phone GNSS5 Hz | 5 Hz | 146 ms | Practice |
The table is position noise on a synthetic circuit whose lap times are known exactly, a thousand laps a row. The engine itself was checked on two real outings at Sydney Motorsport Park recorded on a commercial lap timer: timed across that device’s own lines, our laps matched its laps by 4 to 6 ms on average and about 8 ms at worst.
Video overlays
RaceChrono already does that well and we will not match it. Apex is timing and data.
Public roads
Recording only starts inside a recognised circuit. If we do not have yours, ask and we will add it.
Charging racers
Venues will pay a small fee to lend out a pool of devices, and nothing is charged while Apex sets up with its first venues. Everything else is free.