How long could Jakob Ingebrigtsen stay with Eliud Kipchoge tomorrow if he tried?

30k.

60:45 ish is half way (21k). Jakob could certainly do that, but I don't think it would be THAT easy. With each k getting progressively harder, very quickly.

25k

Stupid question. Jakob is not a marathoner. If Kipchoge tried to race a 1500 against Jakob today, how long could Kipchoge keep up with Jakob’s pace? Two laps?

He’d manage to keep up fairly easily for a half marathon I’d imagine, but start to struggle after that. For Jakob, that is a fairly easy pace so the distance is a much bigger challenge to him than how fast he has to run

Not as long as Viren stuck others Shorter at Montreal.

“Stuck ‘with’.”

Lol. How long could Bolt last with Kipchoge if he tried to go with him?

How long could Kipchoge last with Jornet if he tried to keep up with him on UTMB?

26.2 miles and he would win with a ferocious final 200 under 27 seconds

Prime Bolt would last maybe 1k. Kipchoge would destroy Jornet over any distance if that was something he cared about doing.

As to the OP's question, 25k sounds about right

Once glycogen depletion kicks in after an hour then Jakob would start to fade. His larger frame would struggle to maintain that pace after the half. If he ever wants to be a marathon world record threat then he’s gonna to need to drop 10-15 pounds. Bekele is a perfect example of this.

Guess you can say the same about Bolt and Jakob in that case. They can beat Kipchoge at any distance if they cared enough about it.

Kipchoge would probably win that race, if he trained specifically for it.

A bit late to the Insipid Jakob Thread Party, aren't you?

(25 to 32.5)K but would be the point? Past 10 miles it would no longer be comfortable.

stupid reply. this is a theoretical question; not a question about whether or not it will actually happen.

That's not fun. It's well known that ultras and mountain races are less competitive so world class athletes might be like 99 percentile of talent to win while in track and road you have to be 99.999 or it's not worth to bother. So there's not much to prove.

Now of we put current Kipchoge (tuned up for flat marathons in good conditions) and put him in UTMB and see if he sucks or does well, that is unpredictable and thus interesting.

Also if he trains for Boston with hills and unpredictable weather, and we put him in UTMB instead. Now that would be even more fun. He would probably make slight adjustments to his training and those will all but eliminate the chances of him completely sucking, but how good will he do?

My reply shows the concept works both ways. Jakob couldn’t keep up with Kipchoge this weekend for the entirety of a marathon, and Kipchoge couldn’t keep up with Jakob this weekend for the entirety of a 1500. We all know this, so why even ask the question?

The OP is trying to make Kipchoge look good at Jakob’s expense. Not necessary and not cool.

The preparation for the hills in NYC or Boston are just small speed bumps compared to mountain races like UTMB, Hardrock, speed goat etc. With different kind of preparation for the vert/time on feet, Kipchoge probably on a good day get around 10th overall depending on the depth of the field. Another thing to consider for the long mountain 100 mile races like UTMB and Hardrock, it gets cold at night. So we would be facing a good chance of a dnf(remember the Boston Marathon where almost all the pros dropped out). Don't get me wrong, 5th place at UTMB this year has a 63 min half PB. But basic speed is only going carry you so far in mountain ultras. Look at XC skiing, if to predict the winner via their track times isn't going workout so well because there are other factors at play.

Ha, I think you take your Jakob fandom too personally. I did not think that was the OP’s intention at all.