16-Week plan Improve Endurance

INTERMEDIATE
MARATHON
PLAN

This plan is for you if:

  • You can comfortably run 11 miles
  • You’re running around 26-28 miles per week
  • You’re looking to improve your endurance and strength

VIEW GUIDE

Reach your full potential

This plan provides a progressive build toward race day with balanced mileage, strength support and clear stepback weeks. It’s expertly designed for those looking to improve.

Preparing for Every Woman’s Marathon

Start this plan by July 24th to complete it in time for Race Day (November 16, 2025)!

Not ready to train at this level yet?
Try our Intermediate Base Plan!

THIS GUIDE CONTAINS:

Icon of a running shoe in a colorful gradient.

4-5 days of running per week, on a mix of road and soft surfaces

Icon of a bottle of milk in a colorful gradient.

Nutrition tips and milk recipes to keep you fueled

Illustration of an exercise weight

Weight training and mobility workouts to help prevent injury

Plan preview: week one

  Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Running Rest Easy-effort run
4 miles + strides
Speed workout
6 miles
Recovery run
on soft surface
3 miles
Rest Flexible
movement
3 miles or rest
Long run

11 miles
Strength Choose any two non-consecutive days
Total Body Anterior – Block 2, Total Body Posterior – Block 2
  Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Running Rest Easy-effort run
4 miles + strides
Speed workout
6 miles
Recovery run
on soft surface
3 miles
Rest Flexible
movement
3 miles or rest
Long run

11 miles
Strength Choose any two
non-consecutive days
Total Body Anterior – Block 2
Total Body Posterior – Block 2

PEEK INSIDE THE GUIDE

Two women sitting back to back as they drink from a refreshing bottle of chocolate milk as they recover from a long run in the Arizona desert.
A group of women stretch in the grass post run.
Two women race through a neighborhood during a weekly easy effort run.

Power your runs with protein

Start your day with high-quality sources of protein. Choose one of these quick and easy breakfasts to get you started:

  • Veggie Protein Egg Muffins
  • Mango Overnight Oats with one or two hard boiled eggs
  • Two whole grain waffles topped with Greek yogurt, berries and granola
  • Enjoy an Iced Latte with any of your breakfast meals

Dairy milk outperforms plant-based alternatives with its 13 essential nutrients. It contains more protein than the majority of plant-based milks.

find your anchor

Before you start training, take 10 minutes to write down your why.

Why did you commit to this challenge? What inspired and motivated you to sign up for this marathon? This will be your anchor that you will circle back to when training gets challenging — especially during your long runs. Don’t skip this step.

identiFy barriers to training

What are the things that could prevent you from running? Strategize a plan to overcome them. For instance, if you have children, line up someone to watch them or invest in a running stroller to bring them with. If they are older, have them join your shorter training sessions and be your training partner.

MEET OUR TRAINING ADVISORS:

Alysha Flynn
Alysha Flynn Instagram Instagram Icon
Official Training Expert

Alysha Flynn is a Road Marathoner / Trail Ultra Runner and has been running for over 25 years. She uses this expertise to pursue her true passion of coaching through her business What Runs You, LLC.

Her coaching philosophy makes running approachable and guides women to achieve their running goals through self-discovery, empowerment and engagement with a team of support throughout the journey.

Kristy Baumann
Kristy Baumann Instagram Instagram Icon
Official Training Expert

Kristy Baumann (aka Marathon Nutritionist) is a Registered Dietitian (RD), an accomplished marathon runner, a business owner and a mother of two.

With a focus on empowering women runners, she specializes in helping individuals build confidence in fueling their bodies effectively to excel in both their training and their everyday life pursuits.

Don’t Stop Now

Start training with this guide today, or check out our other training resources, recipes and expert advice to support you on your journey.