Thought of the Day: Why Are My Race Predictors So Far Off?

🧠 Conundrum of the Day, Actually

This morning’s puzzle:

Garmin thinks I can run a sub-2-hour half. Strava says 2:20+. That’s a pretty wide gap. Who’s got the better crystal ball?

One’s using physiology and VO2 max. The other is watching my pacing. Both are helpful, but neither feels quite right.

Naturally, I fed the question to AI.

And in true Plus50Fit fashion, I didn’t stop there. I asked my AI assistant for a Plus50Fit Predictor based on my actual TrainingPeaks metrics — rTSS, IF, Pa:HR, RPE, long-run trends, and more.

🧪 Curious what came out of the lab?

👉 Check out the full comparison here.

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