Your iFIT Running Roadmap: From 5K to Marathon Training

Many runners start with one goal: finishing a 5K.

But once that milestone is behind you, the next step isn’t always clear. Should you train for a 10K? A half marathon? Start building toward a marathon?

That’s where structured training makes the difference.

iFIT’s progressive running series are designed to guide you from one milestone to the next. Instead of guessing what workout to do next, you can follow a clear pathway led by experienced trainers who build endurance gradually over time.

If you’re wondering what to do next in your running journey, here’s a simple roadmap using iFIT training series.

If You’re Starting with a 5K

These series help build consistency, endurance, and running confidence. They’re a great starting point for runners working toward their first 5K or building a stronger base.

• ActivePulse Training Series – Tommy Rivs

• SmartAdjust Miniseries – Gideon Akande

• Elevate Your Endurance – Ashley Paulson

• UK 5K Progressive — Kori Sampson

• Costa Rica 5K Training - Tommy Rivs

• 5K Training Series Part 1: Vietnam – John Peel

• 5K Training Series Part 2: Romania – John Peel 

• Boston Marathon 5K – Casey Gilbert

Once a 5K distance feels comfortable, many runners begin preparing for longer efforts.

Ready for a 10K

These programs help extend endurance and introduce longer sustained runs.

• 10K Training Series Part 1: Costa Rica – Leah Rosenfeld

• 10K Training Series Part 2: Azores – Leah Rosenfeld

• Foundations of Endurance Ireland: Part 1 – Knox Robinson

• Foundations of Endurance Ireland: Part 2 – Knox Robinson

• Foundations of Running: Increase Your Speed – Knox Robinson

• 10K Training Series Part 1: Balkans - Tommy Rivs
• 10K Training Series Part 2: Canary Islands and Madeira - Tommy Rivs

As endurance builds, runners often begin training for the next major milestone.

Preparing for a Half Marathon

Half marathon training focuses on longer runs and sustained pacing strategies.

• Bolivia Half Marathon Part 1 – Tommy Rivs

• Japan Half Marathon Part 2 – Tommy Rivs

• Kenya Run Camp – Luis Orta

These series help runners build the endurance needed for longer distances.

Training for a Marathon

For runners ready to take the next step, marathon training introduces longer mileage and structured endurance development.

iFIT offers several programs designed to help runners prepare for marathon-length distances, including workouts inspired by one of the most iconic races in endurance running.

• 2022 Boston Marathon Experience

• Marathon Training Program Part 1

• Marathon Training Program Part 2

• Marathon Training Program Part 3

These programs guide runners through progressively longer efforts designed to support marathon preparation.

What’s Your Next Step?

Every runner starts somewhere.

You might be building toward your first 5K. You might already be running 10K distances and thinking about a half marathon. Or you may be ready to begin marathon training.

The key is following a progression that helps build endurance over time.

With iFIT’s structured running series, the next step in your journey is always waiting.

Start your next series. 

Follow the iFIT running pathway.

Keep building toward your next running milestone.

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