Rules of Long Jump: Fouls, Attempts, Measurement and Winning Distances

A long jump can look simple from the stands: run, take off and land as far into the sand as possible. In competition, however, a few centimetres at the board can decide whether a jump is measured at all. The rules of long jump are designed to make every attempt fair, comparable and easy to judge.

The long jump runway and takeoff board

Each athlete runs along a marked runway toward a takeoff board. The runway is generally at least 40 metres long and about 1.22 metres wide under international standards. At its far end, the takeoff board is set level with the runway and positioned directly before the sandpit.

The athlete must take off from one foot. The legal takeoff area is the board itself, up to the foul line at its front edge. A strip of plasticine or another foul indicator is placed beyond the line so officials can see whether the athlete has stepped over it.

A jump is a foul if any part of the athlete’s foot breaks the vertical plane of the foul line during takeoff. Stepping beyond the sides of the board can also result in a foul. An athlete may run past the board without jumping, but the attempt is normally counted if the competition rules treat the action as an attempt. Athletes should therefore check the event’s specific regulations before competing.

What makes a long jump foul?

The most common long jump foul is taking off beyond the front edge of the board. The distance of the jump does not matter in this situation: if the foot crosses the foul line, the mark is recorded as a foul rather than measured.

A competitor can also foul by:

• Taking off from outside either side of the takeoff board.
• Touching the ground beyond the takeoff line before landing in the pit.
• Leaving the landing area in a way that makes the first contact outside the pit closer to the takeoff line than the mark in the sand.
• Using an illegal movement, such as a somersault, during the jump.

Touching the runway before takeoff does not automatically create a foul unless the athlete crosses the foul line or otherwise violates the event rules. Officials focus on the takeoff position and the athlete’s conduct through the landing and exit.

How a legal jump is measured

Officials measure a successful long jump from the foul line to the nearest mark made in the sand by any part of the athlete’s body. The measurement is taken at a right angle to the takeoff line, not simply from the board to the furthest point of the landing.

This is why an athlete should avoid falling backward after landing. If a hand, hip or another body part touches the sand closer to the board than the feet, that closer mark becomes the measurement point. Competitors usually leave the pit by walking or stepping forward, away from the takeoff area, so they do not create a nearer mark while exiting.

Measurements are normally recorded to the nearest centimetre, or to the next lower centimetre where the result does not fall on an exact centimetre. A foul receives no distance, even if the athlete reaches beyond the pit’s usual landing area.

Attempts and the order of competition

The number of attempts depends on the level and format of the meeting. In many championship competitions, every athlete receives three preliminary attempts. The best-performing athletes then qualify for three additional attempts in the final phase. Under common international rules, the field may be reduced to the leading eight after the first three rounds, although the exact qualification format can vary when fewer athletes compete.

When eight or fewer athletes take part in an event, competitors commonly receive six attempts each. The best legal jump from the available attempts determines the final ranking.

Athletes usually compete in an order established before the event. During the later rounds, the order may be reversed so that the athlete with the lowest current ranking jumps first and the leader jumps last. This creates a final opportunity for competitors to improve their position, but local meets, school competitions and youth events may use different arrangements.

Time limits, wind and equipment

An athlete must begin an attempt within the time allowed by the officials. A one-minute limit is commonly used, with longer periods sometimes allowed when only a small number of competitors remain or when an athlete is taking consecutive attempts. Failing to start in time can result in a foul.

Wind is measured during the attempt because a strong tailwind can assist performance. A reading above 2.0 metres per second generally means the mark is wind-assisted and cannot be accepted as a legal record under international athletics rules. The jump may still count as a valid competition result and may still affect the event ranking.

Athletes may use competition-legal spikes and must follow rules governing clothing and bib numbers. Officials can inspect shoes, the runway, the board and the landing pit. The runway and pit must be maintained so that all competitors have substantially the same conditions.

How ties are decided in long jump

If two athletes have the same best legal distance, officials compare their second-best legal jumps. The athlete with the longer second mark ranks higher. If the tie remains, the third-best jumps are compared, continuing through the available attempts.

A tie for a qualifying position or a place that determines advancement may require an additional procedure, depending on the competition regulations. In many standard event rankings, the best secondary mark resolves the tie without a jump-off.

Practical points athletes should remember

A consistent approach run is often more valuable than chasing the board at the last moment. Athletes normally mark their run-up, check the wind and aim to hit the takeoff board without shortening their final strides. Officials judge the takeoff and landing, not the athlete’s intention, so a controlled foul is still recorded as a foul.

The essential rules are straightforward: take off legally from the board, land in the pit, avoid creating a closer mark when leaving, and produce the longest legal measured distance. Competition regulations may change the number of rounds or time allowances, but these principles define how long jump results are decided.