Most marathon runners chasing sub-4 have the fitness. They've done the long runs. They've hit the mileage. They still blow up after mile 20. Why? Because they don't have a pacing system.

The Problem

The typical marathon plan gives you a target pace and says "run this." But a single target pace ignores how your body metabolizes fuel differently across 26.2 miles, elevation changes, weather conditions, and the adrenaline trap of starting too fast.

The Solution: Negative Split Pacing

The fastest amateur marathoners run negative splits — finishing the second half faster than the first. It requires discipline and a spreadsheet, not a gut feeling.

Inside Sub4 Pace Lab, I coach runners through personalized pacing spreadsheets, the 3-Zone Negative Split Framework, weekly live critique sessions, and mile-by-mile race day execution plans.

Your next PR isn't about running harder. It's about running smarter.

Most marathon runners chasing sub-4 have the fitness. They've done the long runs. They've hit the mileage.

They still blow up after mile 20.

Why? Because they don't have a pacing system.

The Problem

The typical marathon plan gives you a target pace and says "run this." But a single target pace ignores:

• How your body metabolizes fuel differently in miles 1-10 vs 20-26

• Elevation changes that silently drain your energy bank

• Weather conditions that can cost you 5-10 minutes

• The adrenaline trap of starting 15-20 seconds too fast

The Solution: Negative Split Pacing

The fastest amateur marathoners don't run even splits — they run negative splits, finishing the second half faster than the first.

It feels counterintuitive. It requires discipline. And it requires a spreadsheet, not a gut feeling.

What I Teach

Inside Sub4 Pace Lab, I coach runners through:

• ✅ A personalized pacing spreadsheet calibrated to YOUR fitness, YOUR race course, and YOUR conditions

• ✅ The 3-Zone Negative Split Framework

• ✅ Weekly live critique sessions where I analyze your actual training data

• ✅ Mile-by-mile race day execution plans

If you've run 4:05-4:30 and can't figure out where those last minutes are hiding — they're hiding in your pacing strategy.

Your next PR isn't about running harder. It's about running smarter.

Most marathon runners chasing sub-4 have the fitness. They've done the long runs. They've hit the mileage.

They still blow up after mile 20.

Why? Because they don't have a pacing system.

The Problem

The typical marathon plan gives you a target pace and says "run this." But a single target pace ignores:

• How your body metabolizes fuel differently in miles 1-10 vs 20-26

• Elevation changes that silently drain your energy bank

• Weather conditions that can cost you 5-10 minutes

• The adrenaline trap of starting 15-20 seconds too fast

The Solution: Negative Split Pacing

The fastest amateur marathoners don't run even splits — they run negative splits, finishing the second half faster than the first.

It feels counterintuitive. It requires discipline. And it requires a spreadsheet, not a gut feeling.

What I Teach

Inside Sub4 Pace Lab, I coach runners through:

• ✅ A personalized pacing spreadsheet calibrated to YOUR fitness, YOUR race course, and YOUR conditions

• ✅ The 3-Zone Negative Split Framework

• ✅ Weekly live critique sessions where I analyze your actual training data

• ✅ Mile-by-mile race day execution plans

If you've run 4:05-4:30 and can't figure out where those last minutes are hiding — they're hiding in your pacing strategy.

Your next PR isn't about running harder. It's about running smarter.