Whole-heat timing
Time every racer in a heat from one phone. Finished athletes sort to the top with gold, silver, and bronze.
Mobile race stopwatch
Time a whole heat from one phone.
Sync Start is a race-day stopwatch for coaches, officials, and clubs. Start everyone together, finish them one by one, then save ranks, splits, and exports.
Free to use. Works in the browser — add it to your Home Screen for race day.
One clock
Every racer shares the same start
Splits & ranks
S1, S2, podium as they finish
Groups & folders
Teams, meets, and nested days
Excel & CSV
Podium colors, or a plain sheet
How it works
From setup to results in one heat.
Built for the sequence you already run: load the field, start together, mark finishes, then file the sheet.
- 1
Set the field
Add racers by name and bib, load a saved group, or sit someone out for this heat only.
- 2
Pick a start
Choose a 3-2-1, 5-second, or 10-second countdown. Beeps and vibration mark the gun.
- 3
Time the heat
One clock for everyone. Finish, split, DNF, or DQ each racer. Undo a mark or recall a false start.
- 4
Save and share
Name the heat, file it in a folder, then share results or export Excel and CSV.
Features
Everything in the timer, in one place.
The same tools you will find after you sign in — timing, review, folders, groups, and export.
On the clock
Start sequences
3-2-1, 5s, or 10s countdown. Longer delays count down first, then beep the last three seconds.
Finish, split, DNF, DQ
Record a finish, take splits (S1, S2…), or mark Did not finish and Disqualified without leaving the heat.
Undo and recall
Reverse the last mark on one racer, stop everyone at once, DNF the rest, or clear the heat after a false start.
Start offset
Nudge official times by 0.1s if the start was early or late. Finishes and splits move together.
Beeps and haptics
Countdown and GO sounds, plus vibration on marks. Mute beeps in Settings if the venue is quiet.
After the gun
Session list
Saved heats live on Home. Search by heat name, racer, or bib. Load 40 at a time.
Run again
Reload the same racers and folder into a new heat. Suggested names become Heat 2, Heat 3, and so on.
Folders and subfolders
Nest meets (Meet → Saturday), rename, move selected heats, and send deleted-folder heats back to Unsorted.
Archive and pin
Heats stay active for 7 days, then archive. Pin a meet to keep it. Exported archived heats can delete after 30 days.
Excel, CSV, and share
Share a text summary, download a podium-colored Excel sheet, or a plain CSV. Bulk export every loaded session from the menu.
Racer groups
Save teams or classes once, then load, replace, or append them on setup. Editing a group does not change heats you already ran.
Race day
Built to stay out of the way.
Large tap targets, a clock that keeps ticking if you switch apps, and settings you set once.
Screen stays awake
During countdown and while the clock is running, the display will not sleep on you.
Add to Home Screen
Install Sync Start for a full-screen timer and a faster launch. On iPhone: Share → Add to Home Screen.
Dark mode
Match the venue lights. Toggle from the header or from Settings.
Drafts on this device
Leave mid-heat and Sync Start asks to Resume or Discard next time you open it. You cannot leave for Home while the clock is running.
Export before archive
After you save, you are offered an export so you have a copy before a heat archives.
Your defaults
Set default countdown, start beeps, and auto-archive once. Change the countdown again on any setup screen.
FAQ
Before you get to the start line.
Yes. Sign in to save heats, racer groups, and folders. Google, Apple, Microsoft, or email all work.
Ready when the field is.
Create an account, load your racers, and start the next heat.