4 x 1.8km Threshold on Treadmill

Ooof.  Hard work.

I hit the fitness center at 6am on the dot.  My legs and back are still sore from the weights, but loosened up during my warmup.


  • 20 minute warmup with 3 – 2 minute chunks at 5:30 pace
  • 4 x 10′ (2.5% grade, 5:30/km pace)
  • 5′ recoveries (2.5% grade, 12:00/km pace)

I made it through the first two intervals at my target pace, but I needed to to dig really deep to finish  the second one.  I gave myself a break and took the pace down to 6:00/km for the last two intervals. This took just enough of the edge off so I could complete the workout.  HR monitor started to act up again in the last two intervals.

I’m really tired now.

Tonight I fly out around 5pm.  I am flying through Dallas and get home to Boston at 11pm Boston time.  I can’t wait to get home.

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