Duo mode can be used to time two competitors on several laps.

Chronosoft acts like two independant stopwatchs that could be sync if two events happen at the same time.

The most important buttons have two functions depending on the stopwatch status. To avoid confusion, different colors are used.

Start / Lap button: Green for start when the stopwatch is stopped or reset. Blue for Lap when the stopwatch is running.

Stop / Reset button: Red for stop when the stopwatch is running or was just reset. Black with yellow vertical lines for reset when the stopwatch was stoppped.

Both buttons: Act simultaneously for both competitors. Only visible if allowed by the setup. Only active, if the two competitors' timing sessions have the same status.

Each competitor has its own display.

Line 1: Number and time of the running lap.

Line 2: Elapsed time since the beginning of the timing session.

Line 3: Number and time of the best lap so far.

Each line displays the number and the time of the lap.

Determine if the "both" buttons are visible.

Default value: On.