Running Guides

Evidence-based articles to help you train smarter, race faster, and enjoy every kilometer. Each guide links to free running calculators so you can put the knowledge into practice.

95 guides

Training & Preparation

View All 20 Training & Preparation Guides

First Marathon Training: Beginner's Guide

How do you train for your first marathon safely? A beginner guide to 16-20 week plans, mileage buildup, long runs, tapering, and race day.

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How to Train for a Half Marathon: The Complete Guide

How to train for a half marathon, evidence-based: the 80/20 rule, weekly mileage by level in km and miles, long runs, threshold work, tapering, and pacing.

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Couch to 5K: The Complete 8-Week Beginner Plan

Never run before? This free 8-week walk-run plan takes you from zero to 5K with pacing guides, injury prevention, and a clear path to your first race.

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Running Pace Zones Explained: All 5 Zones, Easy to Sprint

What are running pace zones — and which should each run be in? Learn all 5 zones from easy to sprint, how to calculate yours, and when to use each.

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Running in Wind: How Headwind and Tailwind Change Pace

Headwind slows marathon pace about 2% per 5 m/s (Davies 1980). Tailwind helps less than you'd think. The physics, research, and tactics for windy runs.

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10K Training Guide: From 5K to Your First 10K

Ready to go from 5K to 10K? A 12-week plan with pacing progression, tempo runs, interval sessions, and race strategy for doubling your distance.

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HYROX

View All 5 HYROX Guides

Hyrox for Runners: Why Your Engine Won't Save You

Your road engine carries the runs, not the stations. Compromised running, the half-marathon-pace trap, and the gaps that ambush fast runners in Hyrox.

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Hyrox Stations in Race Order: Splits, Fixes, No-Reps

Your engine won't save you at the wall balls. All 8 Hyrox stations in race order — official loads, expected splits, no-rep rules, and one fix per station.

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HYROX Doubles & Relay Rules 26/27: Weights, Splits, Strategy

Doubles share stations but run all 8 km together; relay splits everything four ways. 26/27 rules, weights (not halved), penalties and how to split reps.

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HYROX SkiErg: Technique, Damper Setting & Pace

The SkiErg is usually the first unfamiliar HYROX machine. Learn the hip-hinge technique, what the damper 6 preset really does, and a target 1000 m pace.

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Best Shoes for HYROX: What to Actually Buy

The best HYROX shoe for most people is a stable, low-stack running shoe — not carbon. Compare rated shoes station by station, with no affiliate links.

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Nutrition & Fueling

View All 9 Nutrition & Fueling Guides

Marathon Nutrition: Science-Based Fueling Guide

What to eat before and during a marathon: carb loading protocol (8-10g/kg), race-day gel timing (60-90g/hr), gut training, GI prevention, and recovery nutrition.

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Runner's Diet Plan: Macros & 7-Day Meal Plan by Training Day

What should runners actually eat? Daily macro targets — 5-8g/kg carbs, 1.4-1.8g/kg protein — plus a real 7-day meal plan matched to your training week.

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Marathon Fueling Strategy — Gel Timing by Pace and Distance

How many gels for a marathon? 5-8 gels at 30-min intervals, 30-60g carbs/hour. Gel timing blueprints for sub-3 to 5-hour goals, plus gut training protocol.

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Beetroot Juice for Runners: Dose, Timing, and Who It Helps

How much beetroot juice before a race? The research dose is 6 mmol (372 mg) daily for 3+ days - and two meta-analyses found no effect in trained runners.

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Tart Cherry Juice for Runners: Recovery and Race Day

Does tart cherry juice work? A 19-trial meta-analysis says it speeds strength recovery, not soreness - plus the 8-day protocol and the pre-race reversal.

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Runner Hydration: Sweat Rate, Electrolytes & Hyponatremia

How much water should runners drink? Drinking too much is more dangerous than dehydration. Test your sweat rate, time sodium, and avoid hyponatremia.

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Racing Strategy

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How to Choose a Realistic Marathon Goal Time

How do you set a realistic marathon goal time? Use race predictors, training data, and honest self-assessment to find your ideal target.

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Run-Walk-Run Marathon Strategy — Ratios & Race Plan

The run-walk-run method averages 13 min faster marathons. Find your ratio by goal pace, start walk breaks from km 1, and prevent the late-race collapse.

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Race Day Preparation: Marathon Checklist

What should you do the morning of your marathon? Alarm timing, pre-race meal, gear checks, warm-up, and mental prep in one checklist.

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Boston Qualifying Times 2026: BQ Standards & Strategy

Can you qualify for Boston? 2026 BQ times by age and gender, the real cutoff buffer, fastest qualifying courses, and a training strategy to close the gap.

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Marathon Race Day Checklist: Hour-by-Hour Plan

Hour-by-hour from the night before to the finish: wake 3.5-4h pre-gun, breakfast timing, gel every 30-45 min, first-10K pacing, and heat/cold/rain gear plans.

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Hilly Marathon Training: 12-Week Boston, NYC & Big Sur Plan

Boston, NYC, Big Sur — a 12-week hilly marathon plan with uphill repeats, downhill eccentric work, course-specific pacing, and realistic goal-time adjustments.

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Running Science

View All 12 Running Science Guides

Heart Rate Training: Zones & Methods

How do you find the right heart rate zone for running? Zone calculation with the Karvonen method, HR monitor tips, and training applications.

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Average Marathon Time by Age & Gender — Is Yours Good?

Median marathon finish: men 4:14, women 4:41, overall 4:25:33 across 430,000 real US finishers. Plus what counts as a good time for your age & gender.

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Average Half Marathon Time by Age & Gender — Rank Yours

Average half marathon time by age & gender: median finish 1:59:48 (men), 2:24:03 (women), 2:14:59 overall. Top 10% is sub-1:47:10. Real 35M-result data.

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Average 5K Time by Age & Gender — Tables + Percentile Rank

Average 5K time is about 30:00 — men ~28:30, women ~34:30. Full tables for every age group 18-24 to 70+, plus percentile ranks: top 10% run sub-22:00.

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VO2max for Runners: Testing & Training

What does your VO2max mean for race day? Estimate it without a lab, discover the best interval workouts to raise it, and set realistic improvement targets.

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Butter Run Challenge: What It Is & How to Make Butter

The viral butter run turns 8–10 km of trail bounce into real, spreadable butter. Get the science, the ideal 10–13°C cream window, and a free calculator.

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Gear & Equipment

View All 6 Gear & Equipment Guides

Carbon Plate Shoes: Are They Worth It for Slow Runners?

Are $280 carbon plate shoes worth it if you run 4:00 or 5:00 marathons? Hoogkamer 2018 vs 2026 271-runner meta-analysis (~2.75% mean) explained.

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Do You Need Stability Shoes for Overpronation? The Research

Most overpronators don't need stability shoes — 3 US Army RCTs, Nigg 2015, and Malisoux 2021 show foot-arch prescription rarely reduces injuries.

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How to Choose Marathon Running Shoes: A Complete Guide

Which running shoes match your pace and gait? Carbon plates vs. cushioned trainers, the 39% injury-reduction rotation strategy, and cost-per-km analysis.

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Do You Need Stability Shoes? How to Decide for Yourself

Stability shoes split runners, and the shops selling them have a stake. What the category really is now, plus a two-week self-test that beats a gait check.

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Running Shoes for Heavy Runners: What Changes at 200 lbs

At 200 lbs your shoe list narrows fast, but not the way listicles claim. What 155 catalog models show about stack, stability, carbon and wide fits.

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Race Day Shoes vs Daily Trainers: When to Wear Which

Your race shoes lose their edge before they wear out — 450 km crossover data shows why. Two mileage limits, a transition plan, and when to train in them.

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Health & Recovery

View All 8 Health & Recovery Guides

How Hot Is Too Hot to Run? Heat Safety & Pace Guide

How hot is too hot to run? A °C/°F threshold table, heat-illness warning signs, pace-slowdown percentages, and free calculators for safe summer running.

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Common Running Injuries: Prevention & Recovery Guide

Why do 60% of running injuries stem from training errors? The 5 most common injuries, prevention exercises, the 10% rule, and when to see a doctor.

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Rest Days for Runners: Why Recovery Makes You Faster

Do rest days actually make you faster? Research shows 23% greater gains with structured recovery. Learn active vs passive rest and how to schedule rest days.

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Overtraining Syndrome: Signs, Prevention, and Recovery

Are you overtraining or just tired? Spot the warning signs of overtraining syndrome early with HRV monitoring and the 80/20 rule to protect your running.

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Sleep and Running: How Rest Drives Recovery and Performance

Sleeping under 7 hours raises injury risk by 70%. Sleep optimization strategies for runners: nap timing, training schedule tips, and pre-race insomnia facts.

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Return to Running: Comeback Plans After a Break

How long to regain running fitness after a break? Comeback plans for 2 weeks to 6 months off with detraining science, run-walk protocols, and pace expectations.

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