Iain Carter

But the caveat is, this is shoes, shoes, shoes, shoes, shoes.

So we were chatting afterwards off mic and Steve, Cram and Paula, and they know, I know it's far more limited.

Paula Radcliffe, sorry.

So that's what they think from about...

10 years ago, that's a 203, 204 time.

That's how much shoes have moved on.

But even in the last year, so Adidas brought out this Adidas, Adizero, Adios, Pro Evo 3 just before the London Marathon.

They wanted to get out for Berlin, which is an even faster marathon course, flatter, habitually the place where world records are broken.

But they brought it out just before London.

Sawi was wearing it.

Yama Kajelcha was wearing it as well.

It's 40 grams lighter than the last iteration, which was used, which was incredible in itself.

But it's also just a millimetre short of the 40 millimetre maximum you're allowed in terms of height.

So you watch them.

I mean, they're running along on little trampolines.

And the improvement, there'll be more sub-two hours this year.

So that's the thing.

You know it's shoes, but then Roger Bannister was running on a cinder track.

What would he have run on a synthetic Mondo track?

So there's progress all the time, but it's almost comparable to technology in golf.