Confirm with tag volunteer — next finisher should be
▲ Tag number is HIGHER than finishers
▼ Tag number is LOWER than finishers
Take out tags so that the numbers match. Hand these extra tags to the results coordinator at the end of the event.
Tap below once for each finisher whose tag was missed — separate from the main Finisher button, so these get flagged in the results.
Timing ended
Don't forget to turn Airplane Mode back off (and restore brightness/other settings) now that timing is finished.