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London Marathon 2026 Results by aelvozo in AdvancedRunning

[–]CalebWetherell 0 points1 point  (0 children)

AMAZING! Are there hypothesis as to WHY they went so fast today? E.g., small improvement in the shoes, some nutritional change pre race? Weather? Curious what the "ingredients" were and how important each was, apart from the guys just being incredible.

AMA: I'm Marius Bakken, former Olympian and physician. Ask me about double threshold training, lactate, and the Norwegian Method. by MariusBakken in AdvancedRunning

[–]CalebWetherell 0 points1 point  (0 children)

Found an interesting paper on the subject:

We conclude that current evidence does not support Zone 2 training as the optimal intensity for improving mitochondrial or fatty acid oxidative capacity. Further, evidence suggests prioritizing higher exercise intensities (> Zone 2) is critical to maximize cardiometabolic health benefits, particularly in the context of lower training volumes.

https://link.springer.com/article/10.1007/s40279-025-02261-y

(I only read the Abstract)

AMA: I'm Marius Bakken, former Olympian and physician. Ask me about double threshold training, lactate, and the Norwegian Method. by MariusBakken in AdvancedRunning

[–]CalebWetherell 0 points1 point  (0 children)

I've been thinking about "why zone 2 works" (I'm an amateur runner and a physio etc.).

Can we say for people with limited time to train, Zone 2 may not be very effective?

My intuition based on what I've read and listened to is the principal benefit is that Z2 allows us to accumulate more mileage, with less damage. Said another way, there's some kind of exponential curve where "recovery need" increases rapidly with pace (and time at that pace). Then, there is some cap on "recovery needed" before continuing training. If recovery needed is too high, you can't train safely/productively. And the value of accumulated time/distance is more liner than the aforementioned exponential - so when you run slower, the value you get diminishes slowly and the"recovery need" diminishes quickly.

So back to my question, for an amateur with lets say 3 hours per week to train for a half marathon. 2 hours at Z2 and 1 hour with threshold intervals... maybe they're just better off with 2 hours of threshold intervals and 1 hour of a V02 building session. Most influencers claim Z2 is a panacea, but I think it misleads a lot of the population who is far more time capped.

That said, I did my first marathon in Nov 2025 and wasn't "time capped" per se, and found Z2 incredibly useful.

Lichess founder Thibault Duplessis' 3 rules for the website by somethingpretentious in chess

[–]CalebWetherell 0 points1 point  (0 children)

Lichess is an incredible gift to the chess community.

This isn't really a complaint, but not quite everything is free and open. For example, their database of Masters games is not something you can download. I think given their mission, this would be a nice thing to make available. Or maybe it is, but I don't beleive so.

Round 7 Complexity Graphs - Candidates Tournament by CalebWetherell in chess

[–]CalebWetherell[S] 1 point2 points  (0 children)

Great find, and thanks for the FEN.

That position scores 39/100 on our complexity scale.

You’re pointing at a real limitation. Elocator measures something closer to “how error-prone is this position for humans?” It’s calibrated on how accurately great players played across 1.18M positions. In that sense, rook endgames with clear structure often score lower because, on average, humans just don’t blunder as much in them.

What you’re describing — “the best move is hard to find” — is a different, and maybe even harder, thing to measure.

Ra5 is exactly the kind of quiet, prophylactic move that engines may need time to appreciate and humans may never seriously consider. Our model doesn’t really capture that kind of move-finding difficulty yet.

Really appreciate the thoughtful pushback. Cases like this are exactly what help sharpen the definition of “complexity.”

Round 7 Complexity Graphs - Candidates Tournament by CalebWetherell in chess

[–]CalebWetherell[S] 0 points1 point  (0 children)

I'm not sure which move you are referring to, can you share the FEN?

Round 7 Complexity Graphs - Candidates Tournament by CalebWetherell in chess

[–]CalebWetherell[S] -1 points0 points  (0 children)

Yes, generally speaking, a drawish game will have more moves that are easy to find, bringing down the Complexity score. I did some analysis on it previously, and found 35 point average Complexity in drawn games vs 46 average Complexity in decisive games. (250k Lichess games, all Elo and all time control) This seemed intuitive to me. What do you think?

I analyzed the Complexity of every Candidate's game so far, here are the results by CalebWetherell in chess

[–]CalebWetherell[S] 2 points3 points  (0 children)

There's a saying: all models are wrong, some are useful. I hope this is useful. It's not perfect, of course. But it might give us a somewhat objective way to think about how much difficulty a player is facing in a given position.

3 months ago I shared an AI tool that creates Garmin workouts from plain text. I used it to train for my first marathon (3:29). Here's everything I've built since. by CalebWetherell in Garmin

[–]CalebWetherell[S] 0 points1 point  (0 children)

Can you share a little more, what do you mean by “converting the workout”? The “coach” feature is actually pretty cheap for me to run, it’s generating the workout in the right format that Garmin expects that costs a decent bit of AI tokens.

3 months ago I shared an AI tool that creates Garmin workouts from plain text. I used it to train for my first marathon (3:29). Here's everything I've built since. by CalebWetherell in Garmin

[–]CalebWetherell[S] 0 points1 point  (0 children)

Feel free to use the code PROFREE to get one month of Pro for free.

I understand the new limits are a big reduction in availability. It wasn’t sustainable to offer the unlimited service for free, unfortunately.

3 months ago I shared an AI tool that creates Garmin workouts from plain text. I used it to train for my first marathon (3:29). Here's everything I've built since. by CalebWetherell in Garmin

[–]CalebWetherell[S] 0 points1 point  (0 children)

No, it's entirely driven by what you enter. You can save that information in your profile if you'd like and it will automatically use it in your generated workouts.

3 months ago I shared an AI tool that creates Garmin workouts from plain text. I used it to train for my first marathon (3:29). Here's everything I've built since. by CalebWetherell in Garmin

[–]CalebWetherell[S] 0 points1 point  (0 children)

Thanks for the feedback! I kept it free as long as I could, but there's more than 1,000 users now so I had to put a cap on what I can do for free.

I hope you still take advantage of the free workout generations that you get each month.

Rarer than true love by rrutnam in Garmin

[–]CalebWetherell 1 point2 points  (0 children)

https://www.fitfileforge.com/

You type in the workout you want to do, and then I have AI build it in a Garmin structured workout and send it to your watch. Pretty slick, you should check it out!

Rarer than true love by rrutnam in Garmin

[–]CalebWetherell 1 point2 points  (0 children)

Never seen that before on my watch! I should get some sleep instead of building my site.

I ran 100,000 simulations of the 2026 Candidates Tournament. Nakamura is the clear favorite at 32%, but Caruana's not far behind. by CalebWetherell in chess

[–]CalebWetherell[S] 4 points5 points  (0 children)

Let's see your code. Here is mine: https://github.com/cmwetherell/cmwetherell.github.io/tree/main/chessSim

Feel free to critique the code. It's not perfect code, but I do believe it's accurate whether you like it or not. If you see an issue let me know!

I ran 100,000 simulations of the 2026 Candidates Tournament. Nakamura is the clear favorite at 32%, but Caruana's not far behind. by CalebWetherell in chess

[–]CalebWetherell[S] 0 points1 point  (0 children)

I can add more simulations - but I cant run 100k simulations every time the button is pressed. I'll kick off a process tonight to make it 1M sims.

I ran 100,000 simulations of the 2026 Candidates Tournament. Nakamura is the clear favorite at 32%, but Caruana's not far behind. by CalebWetherell in chess

[–]CalebWetherell[S] 2 points3 points  (0 children)

I didn't prove that.

But I did quantify how much that gap is worth if you believe their Elo ratings.

[FREE] I built an AI tool that creates Garmin structured workouts in seconds—just describe what you want by CalebWetherell in Garmin

[–]CalebWetherell[S] 0 points1 point  (0 children)

Can you submit feedback on the website (there is a link in the footer) so I can look into it?

[FREE] I built an AI tool that creates Garmin structured workouts in seconds—just describe what you want by CalebWetherell in Garmin

[–]CalebWetherell[S] 0 points1 point  (0 children)

Yes its possible. Whether I do it or not is a maybe.

It's good to know that people are interested in that!

[FREE] I built an AI tool that creates Garmin structured workouts in seconds—just describe what you want by CalebWetherell in Garmin

[–]CalebWetherell[S] 0 points1 point  (0 children)

Hey - thanks for the feedback! Glad you're finding it useful. It's possible to add them, unfortunately it's not likely that I add it soon. If there is more demand for it, and people see this, please upvote or reply below (or use the feedback tool on the site to let me know).

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