In Tokyo in a few weeks you will see some of the greatest athletic performances

imaginable but they won't be at the Olympic Games. They'll be at the Paralympics

the games for wheelchair rugby players sprintersinters, with prosthetic limbs, footballers with cerebral palsy,

athletes who have been working toward this moment for five years.

Five years, not four, Because this year has been different.

It's challenged everyone like we've never been challenged before,

and these are people who have already overcome challenges to be the best in the world.

To me, there is no greater example of this than the blind track and field stars.

These athletes cannot do what they do without a guide, a sighted athlete who creates a level playing field for people who will go further faster than anyone else on earth.

I want to know what that relationship is. Two people,

symbiotically superhuman, who together achieved something extraordinary.

Men and women, who this year in particular have had to adapt to a shifting target

which they cannot see. Five, five. I'm a five. I'm Lex Gillette.

I am a four-time Paralympic medalist, world champion, and current world record holder in the long jump. world Lex starts just over 100 feet from the sand pit,

sprints to the edge, and jumps in a direction.

In Lex's case, he jumps further than any blind person in recorded history.

I'm 5'10 10 if I lay down like how many mees would need to be like

laid down in order to achieve the length of your world record. Okay, we would need, the world record is 6.73 meters,

and you're kind of tall.

So we need, we're going to need definitely three of you and probably an additional half of you.

This is Lex Gillette, a leap in the dark with me Alex Kratoski for the BBC World Service.

So how do you jump blind?

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