Honest writing on training, data, and the tools we build.
Rate of Perceived Exertion is the oldest training metric and still one of the best. Here's when to trust your gut over your power meter or heart rate monitor.
RecoverySleep is the most underrated training tool. Here's what the science tells us about sleep duration, quality, consistency - and what you can actually do about it.
TrainingFTP (Functional Threshold Power) and CP (Critical Power) both describe your sustainable power. Here's why they differ and which one to use for training.
TrainingFrom Z1 recovery to Z7 neuromuscular - here's what each power zone means, how to train in it, and how to check you're getting the distribution right.
ComparisonsStrava's Year in Sport is a marketing moment. Baseline's annual review is a genuine analysis of your training year. Here's the difference, ahead of our launch.
TrainingThe three numbers every serious athlete should track: Chronic Training Load, Acute Training Load, and Training Stress Balance. Here's how they work, in plain English.
WearablesGarmin, Apple Watch, Coros, or WHOOP? A data-focused comparison of the best running watches for serious athletes in 2026. No sponsorship. No fluff.
ComparisonsStrava's analytics are good for what they are. Baseline does what they don't - cross-source insights, geographic depth, and a dashboard built for athletes who want to see the whole picture.
ComparisonsThinking of leaving TrainingPeaks for Baseline? Here's exactly what data transfers, what doesn't, what Baseline does better, what it doesn't do yet, and a step-by-step migration guide.
RecoveryBy the time you feel overtrained, the damage is done. Here are the data signals - HRV, RHR, sleep, TSB, and readiness - that predict overtraining 7–14 days before symptoms appear.
ProductEvery training platform is slapping AI on their landing page. Baseline does something different - here's exactly how we use AI, why it's not a chatbot, and what your data privacy means.
WearablesCycling demands more from a watch than running does. Power meter compatibility, GPS accuracy on winding roads, battery life for centuries, and navigation - which watch actually works for cyclists?
ComparisonsIntervals.icu is a great free tool with a loyal following. Baseline is newer, paid, and built for a different kind of athlete. Here's a fair comparison.
RecoveryHRV is the most useful number on your wrist - and the most misread. Here's how to actually use it for training decisions, in plain English.
NutritionYour morning HRV, resting heart rate, and body weight trends reveal whether you're fuelling properly. Here's how to read the signals of low energy availability before it hurts your training.
Training80% easy, 20% hard. Why the simplest training distribution in endurance sport keeps beating fancier prescriptions - and how to actually implement it without overthinking.
WearablesBoth score your recovery 0–100. They use different sensors, different algorithms, and they often disagree. A practical comparison from someone who's worn both for years.
WearablesShould you run with an Apple Watch or a Garmin in 2026? GPS accuracy, battery life, training metrics, and which watch serves your actual running goals better.
TrainingTraining Stress Score is the foundation of modern training load analysis. Here's how TSS works, what it gets right and wrong, and how to use it across running, cycling, and swimming.
RunningRunning dynamics from Garmin and WHOOP can overwhelm. Here's exactly what cadence, vertical oscillation, and ground contact time mean, what good looks like, and when to ignore the numbers.