The Triathlon/Ironman Training Thread 2025

The most recent podcast with Nate and Jon might be relevant to you right now. The athlete they reviewed started increasing their FTP with a decrease in volume. Perhaps the TR plan is prescribing workouts that aren’t serving you well?

With the analysis you just did, i’d be extremely curious to see running miles and swimming hours within that same periods.

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Yeah it was that podcast that got me going through the data :slightly_smiling_face:. I tried to look at other activities, but I don’t think they seem to have an effect.

In short, I did marathon training and lifting in 2020 while my bike volume was low, in 2023 I only did 1hr club run every week, in 2024 I did hardly any running as I did 50% more time in saddle. So to me, the data shows the same story despite these very different contexts.

I wanted to do some correlation with load data from Garmin but it’s hard to do and eyeballing it doesnt seems to indicate much - I’m around 700 for average training whatever the focus, and ramp up to 1000 approaching race days. FTP doesn’t correlate to that.

I don’t think active energy correlates either, per sport or overall. So maybe TSS does have more value than I grant it, at least as it relates to FTP gains.

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I’m doing LV full IM plan for July 20 lake placid, but just got the go-ahead to sign up for May 25 70.3 in Victoria BC.

Started build phase Feb 24 (for lake placid).

Should I just plug in Victoria as a B race? (Can it also be an A? This would be my preference, I think, but anything else I should consider?

Don’t need to overthink it. Training has been going well, 11-14hrs/week but only 2 swims/week and not reaping the amateur gains I expected in the water…

Otherwise trying to figure out how to adequately show my appreciation to my wife for putting up with and even actively supporting all of the above :slight_smile:

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Hey all

Back after a few years signed up for Ironman Hamburg.

Have been following the LV Ironman plan and training has been going very well. Did some single leg and core work and realised I’ve spent most of my life without engaging my deep core or right leg properly!

Anyway, I’m halfway through build after having a deload week last week and I’m feeling the fatigue a little. Suprathreshold bike yesterday, V02 max SWIM and hard running intervals today and I have an even harder over-under bike tomorrow. Thinking I need to scale it back a little so debating between switching it for a longer sweet spot or tempo workout fully in the TT position.

Anyone else found the build had a bit too much intensity and scaled anything back?

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Not sure how old you are. I’m 46, so not admitting to masters lol. However, I did the Masters version of a LV full distance IM plan last year and REALLY appreciated the recovery weeks every two instead of every 3. Just a thought. If you’re not interested in that, my advice if you’re feeling a bit cooked would be to just do an easy SS workout or an endurance ride and call it good.

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Question here…Do you guys have different ‘FTP’ on Tri bike vs Road bike? I am starting on my new Tri Bike (already did some indoor sessions already but ok…) and I cannot put the same power as on my roadbike. Mainly because more quads use and less hamstrings and not used to use those muscles I guess? Does it take a lot of time to adapt?

Because my first Tri will be 10 May with 38km of biking. Maybe better use my road bike? (very fast Canyon Aeroad ;-)). But on the other hand a week later I have a Tri with 100km bike portion. So just focus on as much riding on my TT bike as possible?

I don’t know the mechanics and physiology of “why,” but my understanding is that it is fairly common to have slightly lower power output on the TT bike relative to road bike power. Possibly due to position, muscles engaged (as you note), and fit.

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I’ve heard the same. Another contributing factor is the hunched shoulders and tight elbows acting as a band around the chest making breathing more difficult.

All that said, with the aero gains you should have on the TT bike, the few percent less power you’re doing should still put you at a faster time over the distance.

You’ve got some time in April to do some testing of your own. See how long it takes you to do a few mile segment on the roadbike vs the TT bike at something like threshold or Sweetspot power.

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Yes. I did 80min at 225W and 140bpm last week on my road bike. Going to do same road on Tri bike at 140bpm…

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Humor me good people:

On a scale of 1 - 7, with 7 = “Crazy but epic - do it!”; 4 = “Crazy - some risk but could be done with care” ; and 1 = “Crazy - avoid at all costs”, how crazy would it be to do a 70.3 and 140.6 on back to back weekends, 7 days apart, with the 70.3 coming first.

Additional info:

  1. both races would be “just finish within the time limit and enjoy the time”
  2. 2 140.6’s and 6 70.3’s under my belt in last 10 years.
  3. 20+ years of endurance training
  4. Would have 31 weeks to prepare for this

Feedback away!!!

A handful of people do Ironman 70.3 Wisconsin and Ironman Wisconsin back to back every year, since they’re on consecutive days (the 70.3 on Saturday and the full on Sunday), so I don’t think doing them a week apart is that crazy, maybe a 5?

I’d probably train for the full, pace both races very conservatively, temper any expectations about results, and prioritize recovery in the intervening week, but otherwise it sounds doable.

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Doesn’t sound too crazy to me. But could be real crazy if “finish within the time limit” is a capacitive effort for you, which is sounds like it wouldn’t be.

With 7 months to prepare you could definitely do a little test at some point between now and then to make sure it won’t kill you. Like do a 70.3 simulation of some kind (brick of long Tempo bike ride into a decent paced 10k/10mi run) and then have a relatively easy week between and see how you feel the next weekend.

If you’ve done that many halfs and fulls and been training for that long then I can’t imagine a half at “enjoy it” pace will wreck you so bad that you can’t come back the next weekend.

My PR (on a pancake flat course) came 7 days after doing a hard 100k ride followed by a 20k tempo transition run. Then an easy 4 hour ride the following day.

My only AG IM win came a week after a 70.3, where I absolutely blew up and walk jogged the last 5k of the run. Admittedly, the walk jogging made me question my decision to still race the IM.

It’s not crazy at all, but I do think you need to understand how your body responds to varying taper lengths. I’ve got 25 years in me (43 y/o now) and it took me (and coaches) about 18 years to realize I perform best off of an extremely short taper for long events. If I was you, I’d look back at prior training data and see if you can suss out where your best performances have occurred in relation to the taper you did. If your prior tapers involve some sort of hard longer effort a week out, then let it rip.

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Last year I saw a guy in his 60’s at IMCA. Two weeks later I saw him cross the finish line under cutoff at Rio Del Lago (100mile trail run). Anything is possible…

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I did worry about this in the early years, and what position to do what workouts, but when I got a tri bike that became my trainer bike and I just stopped worrying about it. There was a thing about ramp testing in aero for a while but that kind of evaporates with AI too.

IIRC it took about three months training for my ramp test in aero to match my ramp test on the roadie. About a 10W difference I think it was.

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Would you enjoy it?

I wouldn’t - the half I’d be worrying about the full, and the full I’d be wrecked, so that would trend toward zero for me.:sweat_smile:

But if it sounds like fun to you, then slap a 7 on it and break out the race kit! :+1: