Ryan's Endurance Threshold

Workout - Ryan's Endurance Threshold

• 15min @ 6'30''/km
• 3 lots of:
  • 8min @ 4'45''/km
  • 4min rest
• 12min @ 7'00''/km

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Intro: Ryan Clayton shares a 15-week training plan leading up to the Cruel Jewel 100. We’ve pulled the core takeaways so you can apply the workout to your own routine. The full video has more context.

Key points:

• Consistency matters. Ryan runs daily after Christmas, with weeks averaging 50-57 miles, plus one recovery week of 10 miles. Steady volume builds a strong aerobic base.
• Training splits into three blocks. The first emphasizes VO2-max work at high intensity, the second targets threshold and tempo efforts, and the final phase peaks your fitness closer to race day.
• Balancing fitness gains against fatigue takes monitoring. Chronic and acute training load, training stress scores, and ramp rate all help guide decisions.
• Body awareness beats plans. When a session doesn’t feel right, Ryan scales back and runs easy instead of pushing through.

Workout example (current threshold/tempo phase):

• How often: 3 to 4 weekly runs, plus a long outing on Saturday
• Main set: 3 or 4 repeats of 8-10 minutes at effort level 8 (hard but still manageable), with 4-5 minutes of easy jogging between
• Weekend runs: Saturday brings 10-20 miles (sometimes more) at conversational pace; Sunday adds another ~10 miles if the schedule permits
• Easy days: 5-mile runs at relaxed effort
• Pacing cue: a heart-rate monitor keeps you honest during those 8-minute pushes and confirms you’re actually recovering between them

Closing note: Slot this interval approach into your training, then adjust paces using a pacing tool. The volume and intensity can flex with your schedule. Watch your training load to avoid overload, and keep stacking miles toward the 100-mile finish line.

References

• Training Update - 15 weeks until the Cruel Jewel 100 - YouTube (YouTube Video)