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The coaching journal for endurance athletes training in 26 weeks

Tactical training notes, recovery science, tools, and decision checklists from the 26weeks.ai coaching lab — spanning marathon, HYROX, triathlon, and ultras.

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Insights & stories

What you’ll find here

The 26weeks.ai blog is a coaching library for endurance athletes—built to answer practical questions like “what should I do next?” without a 50‑option spreadsheet. You’ll find training hubs (marathon, half marathon, triathlon, ultra, HYROX), race resources, and tools that turn decisions into numbers (paces, race‑time estimates, fueling totals, cutoff planning). Many guides use checklists, decision rules, and a sources section so you can verify claims and learn faster. This content is general training information, not medical advice; if you’re injured or have symptoms that worsen with training load, consult a qualified professional. For race logistics, always confirm details with official race organizers.

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The training library

Pick a hub, run the numbers, then follow one checklist. This blog is built to reduce decision fatigue — not create it.

Training hubs

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Pick one plan

Plans with smart variations inside the page — so you commit to a default and stop tab-hopping.

Tools

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Rehearse the numbers

Pace, fueling, cutoffs, predictors — built to prevent race-week blow-ups.

Races

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Use verified race guides

Fact-based directories with sources and last-verified timestamps — because stale logistics ruin race week.

Guides

Open

Follow one checklist

Decision rules for pacing, tapering, recovery, and plan selection — written for busy runners.

Hubs

Training hubs & athlete guides

Hubs are built to answer: “what do I do next?” without a 50-option grid.

8 hub(s)

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Highlighted reads

The fastest way to get value: read one guide, then move into the hub or tool it links to.

All posts

43 article(s)

Marathon Training
12-Week Plan

12-Week Marathon Training Plan for Busy Runners: A Practical, Adaptive Build

A safety-first 12-week marathon training plan for busy runners who need clear defaults, realistic weekly structure, and adaptation rules when life interrupts training.

26weeks.ai Coach
5 min read
Zone 2 Running
Marathon Training

Zone 2 Running Calculator + Talk Test: A Practical Marathon Training Guide

Use heart rate, pace, and the talk test together to set a practical Zone 2 range, avoid accidental hard days, and keep marathon training consistent.

26weeks.ai Coach
5 min read
Running Weight Loss
Marathon Fueling

Running Weight Loss During Marathon Training: How to Avoid the Energy Crash

A practical, safety-first guide to losing weight during marathon training without wrecking long-run quality, recovery, or mood.

26weeks.ai Coach
6 min read
Running Injury Prevention
Marathon Taper

Runner's Knee Before a Marathon: Race or Defer? A Safety-First Checklist

A practical decision checklist for runner's knee in taper weeks so you can protect long-term consistency while making a clear race-day call.

26weeks.ai Coach
6 min read
Overtraining
Overreaching

Overreaching vs Overtraining in Running: How to Tell and What to Do Next

A practical checklist to separate normal heavy-training fatigue from overtraining risk, with recovery actions and red-flag guidance for runners.

26weeks.ai Coach
6 min read
Marathon Training
Busy Runners

Marathon Training Schedule: 3 Days a Week That Still Builds Real Endurance

A practical 16-week marathon training schedule for runners limited to three run days per week, with clear adjustment rules, strength add-ons, and safety checkpoints.

26weeks.ai Coach
7 min read
Marathon Training
Training Plan Pdf

Marathon Training Plan PDF: A Safety-First Template With Adaptation Rules

Use this printable marathon training plan PDF framework to keep training consistent, adapt safely when life interrupts, and reduce race-week decision fatigue.

26weeks.ai Coach
6 min read
Marathon Training
Run Club

Marathon Training Near Me: Coach vs Run Club vs App (Practical Checklist)

Use this decision checklist to choose local coaching, run clubs, or app-based marathon training based on schedule, safety needs, and support style.

26weeks.ai Coach
6 min read
Marathon Training
Illness Recovery

Marathon Training After Illness: A Safe Return-to-Run Checklist

A practical step-down and step-back plan for runners returning after cold, flu, or viral illness, with red-flag guidance and recovery safeguards.

26weeks.ai Coach
5 min read
Marathon Fueling
Sports Nutrition

Marathon Fueling Strategy: The 30-60-90g Carb Plan You Can Actually Practice

A practical marathon fueling progression with checklists for long runs, race day, and GI troubleshooting so you can fuel without guesswork.

26weeks.ai Coach
6 min read
Strength Training For Runners
Running Injury Prevention

Leg Strength Training for Runners: A Simple 2-Day Gym Plan for Speed and Injury Resilience

A practical gym strength plan for runners with weekly structure, progression rules, and recovery guardrails that support marathon training.

26weeks.ai Coach
6 min read
Overtraining
Running Recovery

How to Recover From Overtraining in Running: A 14-Day Reset Without Losing the Plot

A practical 14-day overtraining recovery reset for runners: what to pause, what to keep, and how to return safely without panic training.

26weeks.ai Coach
5 min read
Marathon Fueling
Race Day Strategy

How Many Gels for a Marathon? A Finish-Time Calculator and Race-Day Checklist

A practical, safety-first way to estimate marathon gel count by finish time, carb target, and aid-station reality so you can fuel without panic.

26weeks.ai Coach
6 min read
Half Marathon
Beginner Runners

6-Month Half Marathon Training Plan for First-Timers (Low-Drama, High-Consistency)

A practical 24-week half-marathon plan for first-timers who want steady progress, injury-prevention guardrails, and simple adaptation rules when life interrupts training.

26weeks.ai Coach
5 min read
Overtraining
Marathon Training

How to Avoid Overtraining in Marathon Training: A Weekly Checklist That Works

A practical weekly system to prevent overtraining with load, recovery, fueling, and mental stress checks you can run in 10 minutes.

26weeks.ai Coach
5 min read
Half Marathon
Training Plan

8-Week Half Marathon Training Plan for Busy Runners: A Safety-First Build

A practical 8-week half-marathon plan with clear adaptation rules, injury-prevention guardrails, and race-week execution checklists for busy schedules.

26weeks.ai Coach
6 min read
Marathon Training
Sleep

Marathon Training Sleep Quality and Injury Risk: A Practical Weekly Checklist

How sleep quality affects marathon injury risk, plus a practical checklist to adjust training load before small issues become layoffs.

26weeks.ai Coach
5 min read
Zone 2 Running
Marathon Training

Zone 2 Running: Heart Rate vs Pace for Marathon Training (And What to Do on Bad Days)

A practical decision guide for using heart rate and pace in Zone 2 marathon training, with checklists for heat, hills, treadmill runs, and recovery flags.

26weeks.ai Coach
6 min read
Half Marathon Training
Training Plan

10-Week Half Marathon Training Plan for Busy Runners: A Practical, Adaptive Build

A safety-first 10-week half marathon plan for busy schedules, with clear session defaults, adaptation rules, and recovery guardrails.

26weeks.ai Coach
6 min read
Marathon Training
Sub-3 Marathon

Sub-3-Hour Marathon Training: Benchmark Checklist Before You Commit

A practical benchmark checklist for runners targeting a sub-3 marathon, with pacing, fueling, durability, and recovery gates.

26weeks.ai Coach
6 min read
Marathon Training
14 Week Marathon Training Plan

14-Week Marathon Training Plan for Busy Runners: A Practical Weekly Blueprint

A realistic 14-week marathon plan for runners balancing work, family, and recovery, with clear weekly structure, fueling checkpoints, and safety gates.

26weeks.ai Coach
5 min read
Half Marathon Training
5K To Half Marathon

5K to Half Marathon Training Plan for Busy Runners: A Practical 12-Week Build

A realistic 12-week 5K-to-half-marathon training plan with weekly checklists, recovery guardrails, and adaptation rules when life disrupts training.

26weeks.ai Coach
5 min read
Half Marathon Recovery
Running Recovery

Post Half Marathon Recovery Plan: A Practical 7-Day Reset

A day-by-day half-marathon recovery plan covering soreness, fueling, sleep, and safe return-to-run decisions.

26weeks.ai Coach
5 min read
Overtraining
Underfueling

Overtraining vs Underfueling: A Runner's Signs-and-Action Checklist

How to tell whether performance drop is from training load, low energy intake, or both, with a practical decision checklist.

26weeks.ai Coach
6 min read
Marathon Training
Running Shoes

Marathon Training Shoes Rotation: A Simple Guide for Durability and Fewer Niggles

How to build a practical marathon shoe rotation that supports consistency, recovery, and lower injury risk without overcomplicating decisions.

26weeks.ai Coach
5 min read
Marathon Training
Treadmill

Best Treadmill for Marathon Training: A Practical Checklist Before You Buy

How to choose a treadmill for marathon training based on durability, deck feel, motor stability, and real-world constraints so your easy and long runs stay consistent.

26weeks.ai Coach
5 min read
Marathon Training
Half Marathon To Marathon

Half Marathon to Marathon Training Plan (16 Weeks): Transition Without Burnout

A 16-week transition plan from half marathon fitness to marathon readiness, with weekly priorities, fueling practice, and injury-risk guardrails.

26weeks.ai Coach
5 min read
Marathon Training
Injury Prevention

Marathon Hip and Achilles Injury Prevention: A Strength and Screening Checklist

Use this practical checklist to catch hip and Achilles red flags early, adjust training, and stay durable through a marathon build.

26weeks.ai Coach
5 min read
Marathon Training
Taper

Marathon Taper Anxiety and Sleep: A 7-Day Checklist That Protects Race Week

A calm, practical taper-week plan to reduce anxiety, protect sleep, and keep race-day decisions simple.

26weeks.ai Coach
6 min read
Marathon Training
Mental Health

Marathon Training Burnout: A Practical Reset for Mental Fatigue

If marathon training starts feeling like another stressor, use this practical reset to protect mental health, keep fitness, and make better race decisions.

26weeks.ai Coach
5 min read
Half Marathon
Training Plan

9-Week Half Marathon Training Plan for Busy Runners (With Recovery and Strength Built In)

A realistic 9-week half-marathon structure for busy runners who want consistency, lower injury risk, and clear week-by-week decisions.

26weeks.ai Coach
6 min read
Marathon Training
Taper

Missed a Long Run Before Your Marathon? What to Do in the Last 2 Weeks

A calm, practical plan for runners who missed key long runs near race day and want to finish safely without panic training.

26weeks.ai Coach
6 min read
Marathon Recovery
Marathon Training

Marathon Recovery Timeline: A Practical 14-Day Checklist

A day-by-day post-marathon recovery plan with sleep, fueling, movement, and red-flag guidance so you can return to training safely.

26weeks.ai Coach
5 min read
Overtraining
Running Recovery

Signs of Overtraining in Running: A 7-Day Reset Before It Becomes Injury

How to spot early overtraining signals, run a practical 7-day reset, and return to training without losing momentum.

26weeks.ai Coach
6 min read
Strength Training For Runners
Marathon Training

Strength Training for Runners at Home: A 2-Day Plan That Supports Marathon Builds

A practical at-home strength plan for runners with minimal equipment, clear exercise progressions, and injury-prevention guardrails.

26weeks.ai Coach
6 min read
Marathon Fueling
Sports Nutrition

Marathon Fueling for a Sensitive Stomach: A Practical Checklist That Still Powers Your Race

How to fuel long runs and race day when gels upset your stomach, with a step-by-step testing protocol and safety guardrails.

26weeks.ai Coach
5 min read
HRV
Resting Heart Rate

HRV vs Resting Heart Rate for Marathon Training: What to Trust Each Morning

Use HRV and resting heart rate together to decide when to push, hold, or back off in marathon training.

26weeks.ai Coach
6 min read
VO2 Max
Endurance

VO2 Max 101: Elevate Endurance with Proven Strategies

A complete, science-backed guide on VO2 Max for runners and endurance athletes—definitions, tests, training tips, and an 8-week plan to boost your aerobic engine.

26weeks.ai Coach
14 min read
Breathwork
Pranayama

Marathon Training Breathwork: Pranayama to Boost HRV & VO2

Unlock better heart-rate variability, a lower resting pulse, and more oxygen per stride with science-backed breathing drills tailor-made for every runner.

26weeks.ai Coach
12 min read
Sleep
Recovery

Sleep: The Missing Piece in Marathon Training

Most runners obsess over mileage, pace, and nutrition—but ignore the recovery powerhouse that happens when the lights go out. Discover how mastering sleep can unlock faster times, stronger muscles, and a happier training cycle.

26weeks.ai Coach
12 min read
Strength Training
Marathon Training

Marathon Training: Strength Work That Powers Every Mile

Discover why strength workouts are the secret weapon for runners of all levels and learn exactly how to weave them into your marathon plan—without burning out.

26weeks.ai Coach
12 min read
Featured
Marathon Training
Injuries

Marathon Training Injury Guide: Avoid Common & Rare Setbacks

From runner’s knee to stress fractures, learn how to dodge the injuries that derail Marathon Training—plus science-backed strategies to keep you running strong all season long.

26weeks.ai Coach
11 min read
Featured
Marathon Training
Beginner

Marathon Training: 12 Life-Changing Reasons to Run 26.2

Thinking about taking on 42.2 km? Discover the surprising physical, mental, and social benefits of marathon training—plus expert-backed tips to get you from curiosity to the starting line.

26weeks.ai Coach
15 min read

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