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16 Wk - Advanced Marathon Plan: 3:30 or faster


Suzanne Atkinson, MD. National & World Champion Coach, Author & Founder of Steel City

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16 Weeks

Refund Policy

This plan is protected by our Refund Policy and may, with the author's approval, be exchanged for a plan of equal value from the same author.

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Plan Description

Why Buy From Steel City Endurance?
∙Flexible, detailed plan from world class coach Suzanne Atkinson, MD
∙Facebook Group for questions or help from fellow athletes
∙EMAIL ACCESS for questions or help with your plan
∙Free updates included, reuse your plan multiple times.


My first tri this summer, I knocked 4+ minutes off my 1/2 mile swim. - David Young, Triathlete

I also REALLY like that I have a coach that is thinking outside the box. - Mike Quigley, Leadville 100 finisher

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Is this plan for you?
This is an advanced 16 Week Marathon plan. Consider this plan if you:
∙Currently run 25-30 miles per week
∙Completed your most recent marathon in 3:30 or faster
∙Currently do a weekly 8-10 mile run without any difficulty
∙Have been training at your current load for at least 4-6 weeks injury free.

Other Plan Features
∙Progressive Periodization in Four Proven Phases
∙Every 4th week is a recovery week
∙Periodized Strength, Core & Mobility Training
∙Race Specific Training increases each block
∙Opportunity for monthly racing (5k, 10k, Half) prior to race day

Preview Plan Weeks
Screenshot of First Week of Plan
Screenshot of Peak Week of Plan

Still unsure?
Download this plan and review it in full for 24 hours. If still not happy, we will exchange it for a different one.
Refund are subject to Training Peaks™️ refund policy linked to the left

Training Plan Sample Week


Average Weekly Breakdown

Workouts Weekly Average Longest Workout
39mi 22mi
0:00 hrs 0:10 hrs
Day Offx1
—— ——
—— ——
Workouts Per Week Weekly Average Longest Workout
39mi 22mi
0:00 hrs 0:10 hrs
Day Off
—— ——
—— ——

Training Load By Week

This plan works best with the following fitness devices:

  • GPS

All supported devices

Suzanne Atkinson

Steel City Endurance, LTD

Coaching philosophy: "We are capable of more than we think we are."

Working with Outward Bound Wilderness taught me that we can push ourselves far beyond our preconceived physical and emotional limits. Suzanne excels at both technical instruction in swim, run & cycling skills as well as exercise science & evidence based periodized training for maximum performance.