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re: Could you Finish an Ironman in 3 Days?

Posted on 11/4/26 at 11:19 am to
Posted by Cdawg
TigerFred's Living Room
Member since Sep 2003
62549 posts
Posted on 11/4/26 at 11:19 am to
quote:

I would drown. Never make it to the bike.

Thou speakest lies
Posted by Cdawg
TigerFred's Living Room
Member since Sep 2003
62549 posts
Posted on 11/4/26 at 11:20 am to
quote:

but since I'm old and don't run much anymore that would be tough.

Thou speakest lies
Posted by StrongOffer
Member since Sep 2020
7428 posts
Posted on 11/4/26 at 11:24 am to
quote:

Not how it works
You gave us a hypothetical, so it sure is how I chose to read your hypothetical. An ironman doesn't take place over 3 days.
Posted by Mingo Was His NameO
Brooklyn
Member since Mar 2016
39021 posts
Posted on 11/4/26 at 11:24 am to
quote:

there are people who are decent pool swimmers who get in open water and freak out. getting punched or kicked in the washing machine is no joke, nor is jumping into cold water (look up "cold water shock"). lots of pool swimmers don't practice sighting either and wind up swimming much more than they need to (for example, going way wide around buoys).


I wasn’t even considering that in my OP. The first 200-300m of an open water swim in any triathlon are nightmare fuel. My first 70.3 I started myself too far back and passed hundreds of people on the swim. 200m in I was thinking frick this, this is the worst thing ever, I’m never doing it again.
Posted by Theotherpikecounty
pike county
Member since Aug 2014
694 posts
Posted on 11/4/26 at 11:25 am to
Yes. Could do it under the minimum and probably do pretty well. How i would feel the next few days after would be worse than the race itself. People that have done these will tell you, 48 hours after is brutal.
Posted by dat yat
Chef Pass
Member since Jun 2011
5142 posts
Posted on 11/4/26 at 11:40 am to
NO!
I did a half about 15 years ago. It took a lot of training and still wore me out. The half ironman was way harder than running a full marathon. The next day I was achin and hurtin so bad I worthless so the extra days would not even help.
Posted by CaptainsWafer
TD Platinum Member
Member since Feb 2006
59549 posts
Posted on 11/4/26 at 11:47 am to
quote:

Not sure why people seem to be saying the swim would be the hardest part. The most I've swam in open water was like .52 miles in a bayou in Pierre Part. A buddy of mine and I swam from the boat launch to the houseboat (against the current too) on a dare. It took a while (maybe about 30 minutes or so), but was relatively easy to do (and pretty fun as well). I think I could easily do that another <4 times and get to 2.4 miles.


I was driving the chase boat, can confirm all of the above.
Posted by LSU Coyote
Member since Sep 2007
57732 posts
Posted on 11/4/26 at 11:47 am to
Fckk no.

I lift, BJJ and have moderately decent cardio but way to much muscle mass. My endurance simply wouldn't be there.
Posted by CaptainsWafer
TD Platinum Member
Member since Feb 2006
59549 posts
Posted on 11/4/26 at 11:51 am to
quote:

The untrained taint is easily defeated.


Best quote in the thread so far.
Posted by Tiger4life306
Member since Apr 2016
998 posts
Posted on 11/4/26 at 12:02 pm to
The barometer for Ironman ignorance starts with:
“I could easily do the bike and the run, it’s the swimming that would get me.”

Little do they know if you actually train, swimming will be the least of your worries

In reality, most people would end up DNF-ing followed by a justification statement something along the lines of “well I would’ve finished if it weren’t for ____”
Most people would crack during the run or the bike.
This post was edited on 11/4/26 at 1:39 pm
Posted by Harvey Vortac
MidCity
Member since Aug 2024
782 posts
Posted on 11/4/26 at 12:02 pm to
I think I could do the swim In a day.
The open water swim 2.4 miles currently I swim a mile in about 30 minutes it’s in pool open water would be more challenging and at more than twice the distance it be hard but alternating freestyle and breast stroke I think it could be done in under 4 hours.

You could walk a marathon in a little over 8 hours if you averaged 20 minutes per mile.

Low end average bike speed is 8mph so 14 to 16 hours could get this done. Chafing during the bike portion I think would do me in.

Posted by LSUfan4444
Member since Mar 2004
57660 posts
Posted on 11/4/26 at 12:08 pm to
quote:

The open water swim 2.4 miles currently I swim a mile in about 30 minutes it’s in pool open water would be more challenging and at more than twice the distance it be hard but alternating freestyle and breast stroke I think it could be done in under 4 hours.



if you can do a mile in a pool in 30 minutes, you could do the swim in under an hour and a half unless you have anxiety about open water. At that pace you would be around people the entire time so it's not like you're off on your own. Sure, you can't see the bottom and even if you don't sight between strokes, doing a breaststroke or two every 10-15 forward crawl strokes with bilateral breathing wouldn't add that much time.

With the time trial starts now and as often as they cancel swims now with any threatening current or waves, the conditions are guaranteed to be nothing worse than "mild".

Even when I did IMFLA in 2015, once we got about 100m off shore, it was choppy but certainly doable.

Posted by Sus-Scrofa
Member since Feb 2013
11714 posts
Posted on 11/4/26 at 12:21 pm to
All the time in the world won’t make a difference when I drown trying the open water swim.
Posted by Weekend Warrior79
Member since Aug 2014
22688 posts
Posted on 11/4/26 at 12:45 pm to
quote:

if you can do a mile in a pool in 30 minutes, you could do the swim in under an hour and a half unless you have anxiety about open water

I think you are a little aggressive in your conversion time going from 1 mile in a pool to 2.4 miles in open water. If they are doing 1 mile in 30 minutes, I doubt they are even getting to 2.4 miles in 1 1/2 hours in a pool

Also, when you're doing the open water swim, do you get a diving start? Also, how many times do you get to kick off the wall to give you a little boost in your time?
Posted by TheIndulger
Member since Sep 2011
19475 posts
Posted on 11/4/26 at 12:47 pm to
I did an Olympic tri (about 1/4 of an Ironman) in 2:55 with not a ton of training. Obv an Ironman is much worse but you have 3 days to do it

Considering you can walk a marathon in 8-9 hours and, and a 3 day limit, this is easily doable.

ETA: the biking would hurt bad but could manage if splitting it up over the days. I haven’t been cycling lately
This post was edited on 11/4/26 at 12:50 pm
Posted by jasonbr1975
Lafayette, LA
Member since Sep 2024
2963 posts
Posted on 11/4/26 at 1:02 pm to
quote:

Mingo gets to compete in the kids division

Mike Norvel will finally have time to try it...
Posted by Mingo Was His NameO
Brooklyn
Member since Mar 2016
39021 posts
Posted on 11/4/26 at 1:12 pm to
quote:

Mingo gets to compete in the kids division


You don’t compete in any division because even though your on peptides and trt, you’re still obese
Posted by Totts Supporter
Member since Jun 2025
33 posts
Posted on 11/4/26 at 1:16 pm to
Yes. The biking would be the toughest part for me
Posted by LSUfan4444
Member since Mar 2004
57660 posts
Posted on 11/4/26 at 1:18 pm to
quote:

I think you are a little aggressive in your conversion time going from 1 mile in a pool to 2.4 miles in open water. If they are doing 1 mile in 30 minutes, I doubt they are even getting to 2.4 miles in 1 1/2 hours in a pool


You're assuming that a pool is naturally faster, it isn't. Especially when you consider many IM swims allow swim skins and / or wetsuits or have a current and in an IM swim you're going to have a natural draft off other swimmers.

A 90 minutes IM swim is 2:08 / 100 yds.
A 30 minute mile swim is roughly 1:40 / 100 yards

Simply transitioning from a pool to open water does not result in :30 per 100 yards.



quote:

when you're doing the open water swim, do you get a diving start? Also, how many times do you get to kick off the wall to give you a little boost in your time?


That doesnt boost your time. Sure, maybe the initial dive does for the first 50meters but that washes away very, very quickly. Stopping and restarting at every turn / wall even with flip turns does not save you time.
Posted by LSUfan4444
Member since Mar 2004
57660 posts
Posted on 11/4/26 at 1:19 pm to
quote:

the biking would hurt bad but could manage if splitting it up over the days. I haven’t been cycling lately


I rode about 15 miles a couple weeks ago. The next day my taint felt like it had been scrapped with diamond laces sand paper and then kicked by Justin Tucker wearing cowboy boots.
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