Welcome to the running public with Brack and Crocker and Kirk DeWint.

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1999 a month, and Bracken and I both offer one-on-one customized coaching. Again, go to

the running public.com and check out our offerings. I had a question for you. I like when you

come off firing from the start. What is the longest distance that you think the

Nike vaporfly could race for most people I'm asking for a very specific reason which I'll get to

but how long 20 miles 20 miles what do you think racing further or running further than that in that shoe is just asking for trouble?

No, I'm thinking about the bell curve of humanity. I think most people could take it around

20. Some people could extend up to marathon or 50k and some people would be about capped at about

a half marathon or 10K. But so I'm just putting it at 20. Okay. It's not as aggressive as it used to be. So I think a lot of people could take it 15 to 20. What about the vaporfly 2? I think most people it's like 10K half marathon. So, but I was considering taking the vaporfly floor around Lake Geneva the next time I do it. Which is 19.

That's 21.

21.

Well, I haven't, okay.

Well, I haven't run in the four.

So I can't speak to it.

It's a different shoe.

For sure.

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