Greg Allen

And they also have a carbon plate in them, which is like a spring effect.

And they have the effect not just of springing the athlete forward, because there's a six-millimeter drop from the heel of the shoe to the front of the shoe, which basically pushes the athlete, tilts them forward.

And not only that, you know, these shoes are said to give between 2% and 4% of a difference.

Now, when you look at the world marathon record pre-2016 and now, that improvement yesterday is less than 4% than 2016.

In fact, it's more like 2.5%.

which means that there is more to be given in these as these shoes are developed.

And then you have to remember as well, these guys are super nutritioned, super scienced in their preparation by comparison, say, to 20 years ago, maybe not 10 years ago, but it's always development.

As Dave Brailsford used to say from the Sky cycling team, marginal improvements.

on year, on year, on year.

And these marginal improvements just took a big leap forward yesterday because that record was 65 seconds, more than a minute quicker than the previous world record.

And that's the equivalent of more than 300 metres of track.

You know, it's an extraordinary amount to have improved the world record by.

Well, between that and the start line, he also took an energy gel, which is loaded with glycogen, carbohydrates, and through the race, these energy gels, which are perfectly legal, they are supplements, they are not PEDs, they are not performance-enhancing doping scenarios.

They are also ingested eight times in the course of the race.

Not really, no.

They're handed to them and they're picked out from the handlers at the stations.

But I've mentioned the PED, the performance enhancing drug thing in all of this.

And there is a thing to be said here because Salway won the Berlin Marathon last September and he won it in two hours and two minutes, which is substantially slower, but still a good time.

And Berlin's a fast course like London.

Between Berlin and London,