Marathon Confidence Builder

Marathon Confidence Builder

Workout - Marathon Confidence Builder

  • 5.5km @ 4'30''/km
  • 7 lots of:
    • 3.0km @ 3'25''/km
    • 1min 30s rest
  • 6.5km @ 5'10''/km
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Intro: Ben Is Running has a solid breakdown of HUGE Marathon Workout 3 WEEKS Out From BOSTON | Hoka Rocket X2 Review. The main takeaways are below so you can run this session today. Watch the full video for the details.

Key points

  • A 34 km run, 23 days before Boston, built around 7 x 3 km repeats at marathon pace (~3:25/km). The structure builds race-specific endurance, see Mastering Interval Training: Science-Backed Workouts and How a Smart App Can Personalize Them.
  • Each 3 km repeat is followed by a 1:30 easy jog (roughly 125 bpm). You practice staying composed as fatigue accumulates.
  • Warm-up: 5.5 km easy-moderate (~4:32/km). Cool-down: 6.5 km easy (~5:08/km).
  • Tip: Run each recovery jog at the same easy pace. It builds pacing awareness when fatigued and keeps the workout on track.

Workout example

1. Warm-up 5.5 km at easy-moderate pace
2. 7 x:
   - 3 km at marathon pace (~3:25/km)
   - 1 min 30 sec easy jog recovery
3. Cool-down 6.5 km at easy pace
Total ~34 km

Adjust the 3 km pace to your target (for example, 3:45/km for a 4:15 marathon). Hold the 1:30 recovery steady.

Closing note: Set up these repeats in the Pacing app for your schedule. It’s a good way to build confidence at marathon pace three weeks out. This repeat-based method transfers to other distances. See Mastering 5K Speed: Proven Interval Strategies to Cut Minutes off Your Time for 5K work or Mastering the 10K: Proven Training Plans, Pace Strategies, and How a Smart App Can Elevate Your Performance for 10K.


References

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