Start at the mileage you already run, not the peak
High confidence
Start a plan at the mileage you already run, not the bigger number it builds to later. The plan's whole job is to carry you up to that peak, so week 1 should feel like a normal week, not a reach.
Why it works
The body adjusts slowly. Muscles, tendons, and the heart take weeks to catch up to harder training, and that steady week-by-week climb is what actually builds fitness. So week 1 only needs to match what you already handle. Anchor it to the peak instead and the first week becomes a big spike (a high acute-to-chronic load ratio, where one week towers over your recent average). That spike also skips the very adjusting the build is meant to create.
What it means in practice
Set recommendedStartingVolume to the plan's week-1 volume, and write the entry bar to match ('you should already be running about X'), not the peak. In plan reviews, flag two things: prose that tells a runner they only need a base well below week 1 (a hidden week-1 spike), and starting volumes set near the peak. Check that the ramp works from the anchor. Don't raise the anchor to pre-cover later weeks.
The evidence
-
Both groups improved endurance performance over the program. Runners on the individualized arm — load scaled off their own measured baseline and adjusted by recovery and training status — tended to gain more and were more likely to be high responders. The design anchors entry load to what a runner already tolerates rather than to a target peak. With 30 runners analyzed in a single field cohort, that individualized edge reads as a trend, not a settled result.
n=30
-
Each runner started from their self-reported baseline volume, then added about 5 to 10 percent a week. Progression ran in 4-week mesocycles: weeks 1 through 3 built, then week 4 and week 8 returned to week-1 volume for recovery. Volume tapered toward week-1 values at the end. Protein supplementation showed no time-trial benefit over placebo.
-
Run Clever put 839 recreational runners through an 8-week preconditioning phase, then moved 447 of them into a 16-week block that progressed either running volume or running intensity. Each 4-week cycle raised the load about 23 percent in week 1, held flat through weeks 2 and 3, then cut back 10 percent in week 4. Injury risk did not differ significantly between the volume and intensity groups. The drop from 839 to 447 is a large dropout, which weakens confidence in the null result.
n=447
-
This clinical guidance advises a 16-20 week marathon build, started only once a runner can already cover at least 8 km several times a week. Typical weeks run 5-10 km on 3-5 days plus one run over 10 km, with weekly mileage rising no more than about 10 percent. The entry bar sits at current fitness, not peak. As a narrative review it reflects expert consensus rather than trial data.
-
Female runners began with a deliberate two-week low-intensity run-in before the real training block, so they entered rested and already familiar with the procedures. This set the starting point at current readiness rather than dropping straight into peak-level loading. The primary iron endpoints moved over the training phase: iron stores and hepcidin both fell.
-
Recreational runners who tapered longer and kept the taper disciplined finished closer to their predicted ability. Finish time also tracked each runner's fastest 10 km training pace, which the authors used as a fitness proxy. So shorter hard efforts during the build double as useful fitness checks. The data is observational and self-recorded from Strava, so it shows correlation, not that the taper caused the gain.
-
This narrative review gathers training and performance evidence specifically for recreational runners, so its recommendations reflect synthesis rather than any single trial. Pairing 1-2 weekly HIIT sessions with continuous moderate- and low-intensity running beat either approach alone; SIT, aerobic HIIT, and short-interval HIIT each raised 1.5 to 10 km performance across 4-10 week studies. Strength training improved running economy at every level and raised VO2max in novice runners over 6-14 weeks, though the benefit thinned in well-trained runners and one study found none in recreational marathoners. A polarized split (~75-80% Zone 1, 15-20% Zone 3, little in Zone 2) beat a threshold-focused model for 10 km performance, though a pyramidal split is also reasonable; the practical floor is at least 75% of running time in Zone 1. Periodized training, linear or reverse linear, outperformed non-periodized work, with reverse linear possibly better suited to marathons and longer events. Predicting race time from a prior race at another distance is the most accurate method but offers no physiological insight. The review also pushes back on common amateur habits: imitating elite mileage (e.g., >70 km/wk) tracks with health problems, the '10% rule' for weekly load has little solid support, and commercial training algorithms (TrainingPeaks-style) often go unvalidated.
-
A full training plan mixes many interacting, time-varying interventions (exercises, intensities, durations, periodization, taper, nutrition), and no one can ground every decision in rigorous evidence. Wackerhage and Schoenfeld propose "evidence-informed" as the honest label: the overall framework and key exercise choices can lean on meta-analyses, while session-to-session adjustments and an individual's response to a block fall to practitioner judgment. Because adaptation varies widely between people, individualization is itself part of that practice. The framework also makes room for an athlete-centered approach, setting aside the theoretically optimal plan when a runner's preferences, life context, or psychological needs point elsewhere.
Why we call confidence high
The finding lines up across several kinds of study. Plans built off a measured baseline support it (Nuuttila 2022, Roberson 2018). So do staged plans that ease runners in before the hard block (Ramskov 2018, Auersperger 2013) and clinical and marathon guidance (Vora 2018). The direction is well supported. But most of this evidence comes from how the studies were designed and observed, not from trials built to test baseline-setting on its own, so it rates high rather than very-high.
Where it applies
Adult recreational and trained runners starting a multi-week structured plan, at any race distance.
Does not apply to: true beginners starting from walk-run, where week 1 may be near-zero and 'current tolerated load' is the relevant anchor rather than a mileage number; elite athletes with bespoke coaching.
Last reviewed Jun 11, 2026. See how we score.