Marathon Toughness Circuit

Workout - Marathon Toughness Circuit

• 10min @ 6'00''/km
• 400m @ 3'05''/km
• 1min 30s rest
• 400m @ 3'05''/km
• 1min 30s rest
• 400m @ 3'05''/km
• 1min 30s rest
• 400m @ 3'05''/km
• 1min 30s rest
• 10min @ 5'00''/km
• 3min rest
• 400m @ 3'05''/km
• 1min 30s rest
• 400m @ 3'05''/km
• 1min 30s rest
• 400m @ 3'05''/km
• 1min 30s rest
• 400m @ 3'05''/km
• 1min 30s rest
• 10min @ 5'00''/km
• 5min @ 6'30''/km

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Intro

Here’s what Matthew Choi covers in “Can I Run a 2:49 Marathon? | 2:49 Project EP 1”. These workouts are usable today. The video has the full context and explanation.

Key points

• Double-threshold day: morning track work is 10 × 400 m at 73-75 seconds with 90-second recovery, then a high-intensity circuit (skier, rower, strength) to train your threshold systems at marathon pace.
• Swimming: 1-hour pool sessions, roughly 5-6 miles of running’s worth of cardio with much lower impact.
• Training philosophy: stack fast short repeats (400 m) with longer low-impact work (swimming) to build the speed, stamina, and toughness for a sub-2:49 marathon.

Workout example

Track (morning):

• 10 × 400 m at 73-75 sec each.
• 90 sec rest between reps.

HYROX circuit (afternoon):

• 4 rounds of:
  • 35 sec at high intensity on the skier, rower, and strength moves (burpees, kettlebell swings, etc.)
  • Keep rest minimal. Total time around 55 minutes.

Swim (next day):

• 1-hour swim (add fins, hand paddles, buoy, and board for variety).
• About 5-6 miles of running’s worth, at a steady moderate pace.

Closing note

Try the double-threshold plus swimming routine, adjust paces to your fitness, and log sessions in the Pacing app.

References

• Can I Run a 2:49 Marathon? | 2:49 Project EP 1 - YouTube (YouTube Video)