Jumping (Weekly Short-Short Note)

Run at ten to twenty percent below top speed. The speed of this approach determines the majority of the record. Approach the takeoff board without tension.
Hop. Take off with your right foot while maintaining horizontal speed, and land on that same foot. Landing doesn't mean bending your knee deeply; it means catching the ground with the sole of your foot to prepare for the next burst of energy.
Step. You don't need hang time. Just
absorb the force pushed forward by the hop, and quickly swing the opposite leg. Lift your knee high to prepare for the next jump's takeoff.
Jump. Pull both arms up high, lift your upper body, and establish your posture in the air.
Extend both legs as far as possible, reaching forward. Gain distance by letting your hips slide into the sandpit.
That's it, that's it. You'll be judged as having the best and coolest form.
Now, what's the record?

Under a clear, cloudless sky, a red flag fluttered.

The prompt is from this 'Takeoff Audition'.

Since train-related topics seem likely to overlap, I chose the triple jump from track and field.