High Jump Approach Calculator

The approach curve is the curved arc an athlete runs during the final steps before takeoff in the Fosbury Flop. Running a J-shaped curve allows the athlete to lean inward, which helps convert horizontal momentum into vertical lift at takeoff. Getting the curve right is critical to clearing the bar efficiently.

Most high jumpers use 3 to 7 steps on the curved portion of their approach. Beginners often start with 3–5 steps, while more advanced athletes may use 5–7. The key is consistency — the curve should feel natural and repeatable at competition speed.

The foot angle at takeoff (typically 15°–35°) describes how much the athlete's takeoff foot is turned toward the bar. A smaller angle means the foot points more directly at the bar, while a larger angle points it slightly away. The optimal angle helps maximise vertical force while maintaining the rotational mechanics needed to clear the bar.

The X-distance is the horizontal measurement of the takeoff foot from the near upright, running parallel to the bar. The Y-distance is the perpendicular distance of the takeoff foot from the bar itself. Together these coordinates define exactly where the athlete plants their takeoff foot relative to the jumping structure.

The straight part of the approach precedes the curve and allows the athlete to build up speed. Athletes typically take 5–7 strides on the straight before entering the curved section. The transition point from straight to curve is calculated from the curve start coordinates this tool provides.

The lateral distance is how far to the side of the near upright the athlete's takeoff foot is positioned, measured along the line of the bar. This affects the angle of clearance over the bar and must be calibrated to the athlete's body rotation and bar clearance technique.

Once you have the curve start X and Y coordinates, mark that spot on the track with chalk or a cone during training. The athlete begins their curved running from this point, ensuring they arrive at the takeoff foot position with the correct momentum, lean, and angle.

Yes. The calculator works for junior beginners through to elite athletes. Simply adjust the stride length and step count to match the athlete's current ability. Coaches often iterate through multiple calculations to fine-tune the approach as the athlete's speed and technique develop.