When timing test sets, there are two ways to handle when a swimmer passes another in a lane, referred to as the passing mode. Before you start timing a test set, tap the gear icon in the upper right to change the passing mode. Make your selection, CONFIRM.
Starting Order is the default. If a swimmer passes another, in the next leg of the swim they will resume their original starting order.
With Finishing Order, if a swimmer passes another, in the next leg of the swim they will continue in that order.