Skip to content

Running · Race-specific

6-5-4-3-2-1K CUTDOWN

6·5·4·3·2·1 km, each faster, 1 km moderate between

Time · 2 h 20Difficulty · Difficulty 5 of 5 — EliteElite

Elite session. As written this is for very experienced, high-volume athletes. Most people should start with the scaled version below.

THE STORY

A descending, progressively faster marathon session in the style of Italian-school marathon training. We couldn't find a source tying this exact ladder to a named coach, so we describe it by structure only.

WHAT IT TRAINS

Running faster as fatigue builds — marathon effort at the start, near 10K effort by the last kilometre.

WHO IT'S FOR

Experienced marathoners and half-marathoners. Scaled version recommended for most.

HOW TO DO IT

  1. 01Warm up 15–20 minutes easy.
  2. 026 km at marathon effort, 1 km moderate.
  3. 035 km slightly faster, 1 km moderate. 4 km faster again, 1 km moderate.
  4. 043 km at half-marathon effort, 1 km moderate. 2 km faster, 1 km moderate. 1 km at about 10K effort.
  5. 05Cool down 10 minutes.

SCALED VERSION

3-2-1 km (each faster) with 1 km moderate between.

Build the scaled version in Forge →

TARGETS THAT FIT YOU

Every rep carries an effort cue — 5K effort, threshold, easy — so it works at any fitness. Your watch shows the cue on each step. Want exact paces? Save your threshold pace or a recent race in Settings and tap Tailor to my paces.

THE WORKOUT, STEP BY STEP

RUNNING

6-5-4-3-2-1K Cutdown

6·5·4·3·2·1 km, each faster, 1 km moderate between · Fit File Forge Workout Library: www.fitfileforge.com/workouts/library/6-5-4-3-2-1k-cutdown

WARMUP15 min

easy

ACTIVE6.0 km

marathon effort

RECOVERY1.0 km

moderate

ACTIVE5.0 km

slightly faster

RECOVERY1.0 km

moderate

ACTIVE4.0 km

faster again

RECOVERY1.0 km

moderate

ACTIVE3.0 km

half-marathon effort

RECOVERY1.0 km

moderate

ACTIVE2.0 km

faster

RECOVERY1.0 km

moderate

ACTIVE1.0 km

10K effort

COOLDOWN10 min

easy

  • RunningRace-specificDifficulty 5 of 5 — Elite

    Canova 4 × 6K

    4 × 6 km at marathon effort or slightly faster, 1 km moderate between

    2 h 30Inspired by Renato CanovaElite · scaled version inside

NOT HERE? DESCRIBE IT.

Type any session the way you'd tell a training partner — Forge turns it into a Garmin workout in seconds, and your coach can plan the weeks around it.

Garmin and Garmin Connect are trademarks of Garmin Ltd. or its subsidiaries. Zwift is a trademark of Zwift, Inc.; Fit File Forge isn't affiliated with Zwift. Athletes and coaches named here don't endorse Fit File Forge.