Breno Melo · The JournalIssue №04 · Spring 2026Boston · MA

Journal

Long-form essays on physiology, fueling, race execution, and the small decisions that separate finishing from racing.

★ Cover StoryTraining·9 min read

Zone 2 Heart Rate Calculator: How to Find Your True Aerobic Zone (2026)

Most Zone 2 calculators use age-only formulas that miss by 15–25 bpm. Here's the math, the field test, and the coach-built calculator that gets it right.

June 11, 2026Read essay
Zone 2 Heart Rate Calculator: How to Find Your True Aerobic Zone (2026)
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02
Cycling 10 min

FTP Calculator for Cyclists: 5 Ways to Estimate Functional Threshold Power (2026)

FTP from a 20-minute test, an 8-minute test, a ramp test, or a race file. Which method is most accurate, and how to use the number once you have it.

FTP Calculator for Cyclists: 5 Ways to Estimate Functional Threshold Power (2026)
03
Marathon 8 min

Boston Marathon Cutoff Times: Complete History 2014–2026 (and What 2027 Will Need)

Every BQ cutoff since 2014, why the cutoff exists, and the data-backed projection for what time you'll actually need to run to get into Boston 2027.

Boston Marathon Cutoff Times: Complete History 2014–2026 (and What 2027 Will Need)
04
Race Prep 10 min

Heat Acclimation Protocol: 14 Days to Race Faster in the Heat

Racing a summer marathon? A coach-built 14-day heat acclimation protocol that drops your core temp, raises plasma volume, and turns a 75°F race day from disaster into business as usual.

Heat Acclimation Protocol: 14 Days to Race Faster in the Heat
05
Nutrition 11 min

Marathon Fueling Strategy: The Carb Math That Wins the Last 10K

Bonking isn't fitness — it's fueling. A practical breakdown of carb intake, hydration, and the gut training that lets you actually hit your goal pace at mile 22.

Marathon Fueling Strategy: The Carb Math That Wins the Last 10K
06
Running Form 9 min

Running Cadence Guide: Why 180 SPM Isn't Magic (and What Is)

The 180 steps-per-minute rule is the most over-prescribed cue in running. Here's what cadence actually predicts about your form, injury risk, and speed — and how to change it without wrecking your stride.

Running Cadence Guide: Why 180 SPM Isn't Magic (and What Is)
07
Physiology 12 min

Lactate Threshold vs VO2max: Which One Actually Wins the Race?

Two physiological markers, two different training prescriptions. A coach's breakdown of what each one means, how they're tested, and which one to chase based on your event and your years in the sport.

Lactate Threshold vs VO2max: Which One Actually Wins the Race?
08
Half Marathon 10 min

Half Marathon Training Plan: A Realistic 12-Week Build to 13.1

Twelve weeks is the sweet spot for a half marathon build — long enough to gain real fitness, short enough that life doesn't derail it. Here's the structure that produces PRs without burnout.

Half Marathon Training Plan: A Realistic 12-Week Build to 13.1
09
Triathlon 15 min

Ironman Training Plan: A 24-Week Roadmap for Your First (or Fastest) 140.6

What 24 weeks of Ironman training actually looks like — phases, weekly hours, key sessions, and the brick workouts that separate finishers from sufferers.

Ironman Training Plan: A 24-Week Roadmap for Your First (or Fastest) 140.6
10
Boston Marathon 13 min

Boston Marathon Qualifying Times: The Real Story Behind BQ Standards

Hitting the published BQ standard isn't enough anymore. A coach's breakdown of how the qualifying system actually works, the cutoff math, and the buffer you need to make the field.

Boston Marathon Qualifying Times: The Real Story Behind BQ Standards
11
Physiology 12 min

Heart Rate Zones Explained: The 5-Zone Model for Runners and Cyclists

Forget the chest-strap chart that came with your watch. A coach's guide to setting heart rate zones that actually map to your training — and the only two zones that matter most.

Heart Rate Zones Explained: The 5-Zone Model for Runners and Cyclists
12
Marathon 11 min

How to Calculate Your Real Marathon Pace (Not a Wishful One)

A marathon pace calculator can tell you what's possible. This guide tells you what's realistic — and how to dial in the pace that gives you the best chance of negative-splitting on race day.

How to Calculate Your Real Marathon Pace (Not a Wishful One)
13
Training 14 min

VDOT Training Guide: How to Use Jack Daniels' Formula for Real Speed

Stop guessing your training paces. A complete, athlete-friendly guide to VDOT — what it is, how to calculate it from a recent race, and the five training paces every distance runner should be hitting.

VDOT Training Guide: How to Use Jack Daniels' Formula for Real Speed
14
Marathon 11 min

Marathon Taper Guide: 3-Week Schedule to Race Day Sharp

Exactly how to drop volume, keep intensity, manage your head, and walk to the start line feeling sharp instead of sluggish.

Marathon Taper Guide: 3-Week Schedule to Race Day Sharp
15
Strength 12 min

Strength Training for Runners: The Two Sessions a Week That Change Everything

What runners actually need from the gym — the exercises, the sets, the reps, the timing — to run faster, stay healthy, and finish strong.

Strength Training for Runners: The Two Sessions a Week That Change Everything
16
Boston Marathon 11 min

Boston Marathon Qualifying Times by Age (2026 & 2027 Standards + Real Cut-Off)

Full 2026 & 2027 Boston Marathon qualifying times by age and gender, the per-mile pace to hit each standard, and the realistic BQ cut-off you actually need to beat.

Boston Marathon Qualifying Times by Age (2026 & 2027 Standards + Real Cut-Off)
17
Marathon 14 min

How to Train for Your First Marathon: A Coach's 20-Week Blueprint

Everything a first-time marathoner needs — weekly structure, long-run progression, fueling, taper, and race day execution. From a coach who's done it 12 times.

How to Train for Your First Marathon: A Coach's 20-Week Blueprint
18
Training 9 min

Jack Daniels VDOT: The Complete Guide to Training Paces That Actually Work

What VDOT really measures, how to calculate yours from a recent race, and how to translate it into easy, threshold, interval, and repetition paces.

Jack Daniels VDOT: The Complete Guide to Training Paces That Actually Work
19
Cycling 8 min

FTP Explained: What Functional Threshold Power Means and How to Test It Right

FTP is the most over-tested, most misunderstood number in cycling. Here's what it actually represents, the three testing protocols that work, and how to use it to train.

FTP Explained: What Functional Threshold Power Means and How to Test It Right
20
Triathlon 8 min

Ironman and 70.3 Time Predictor: How to Forecast Your Finish Realistically

Why most Ironman predictions are wildly optimistic — and the inputs that actually matter for an honest 70.3 or full distance forecast.

Ironman and 70.3 Time Predictor: How to Forecast Your Finish Realistically
21
Marathon 7 min

Marathon Pace Calculator: How to Pick a Goal Time You Can Actually Run

The math behind a smart marathon goal — using VDOT, recent half marathon time, training volume, and the heat factor most athletes ignore.

Marathon Pace Calculator: How to Pick a Goal Time You Can Actually Run
22
Physiology 7 min

Zone 2: Why Slow Training Builds Fast Athletes

The unglamorous truth about aerobic base — and why your easy days dictate how fast you'll race on the day that matters.

Zone 2: Why Slow Training Builds Fast Athletes
23
Race Prep 11 min

Boston Marathon Course Strategy: Mile-by-Mile From Hopkinton to Boylston

The Boston course punishes anyone who treats it like a flat marathon. Here's the mile-by-mile plan I give every BQ athlete I coach — pacing, fueling, and the four hills that decide your race.

Boston Marathon Course Strategy: Mile-by-Mile From Hopkinton to Boylston
24
Nutrition 9 min

Fueling the Long Ride: A Practical Carb Strategy

How many grams of carbs per hour, when to start, and what to do when your gut shuts down at hour three.

Fueling the Long Ride: A Practical Carb Strategy
25
Race Prep 6 min

The Taper Myth: Less Isn't Always More

Why most athletes botch their taper — and the simple framework I use with every athlete to arrive sharp instead of flat.

The Taper Myth: Less Isn't Always More
26
Strength 8 min

Strength Training for Endurance Athletes: What Actually Works

Two sessions a week, heavy and short. Why endurance athletes who lift heavy run, bike, and swim faster — and what to actually do in the gym.

Strength Training for Endurance Athletes: What Actually Works
27
Training 7 min

Heart Rate, Power, and Pace: Which Metric Should Drive Your Training?

Each metric tells a different story. Knowing which one to trust — and when — is the difference between racing your potential and racing your guesses.

Heart Rate, Power, and Pace: Which Metric Should Drive Your Training?
28
Race Prep 6 min

How to Pick a Goal Race You'll Actually Show Up Ready For

Most athletes pick races emotionally and pay for it physically. A coach's framework for choosing a race that matches your life, your timeline, and your current fitness.

How to Pick a Goal Race You'll Actually Show Up Ready For
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