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Signals the athletes to approach the take-off board in jumping events.

Indicates a rolling start in a relay race.

Signaling the event helpers to retrieve equipment like javelins, discuses, or shots.

Signals that a relay runner is approaching the changeover box.

Indicates the direction of the next lap for athletes in long-distance races.

Indicates that the hammer, discus, or shot put cage is secure and the event can begin.

The race is ready to begin.

Start of the race.

Indicates athletes should continue moving and not stop (e.g., during relays).

An unsuccessful attempt or foul play.

False start.

A situation requiring officials' attention or a conference.

Official time-out.

Cutting the track or leaving the lane illegally.

Denotes the second call for athletes to report to the event or start line.

The participants should take their positions on the track or in their lanes.

Indicates the timers are ready and the race can start.

Indicates all is clear on the track or field event.

Signifies that the recording of results or athletes' information is occurring.

Approval for the athlete to begin their run-up in the jumping or pole vault event.

A successful attempt or fair play (e.g., in jumping or throwing events).

Confirmation of a successful communicative, technical, or timing check.

The event area is clear and the athlete can begin their attempt.

Indicates disapproval or something is not ready or correct.