10K training with Garmin Run Coach

Earlier this year I registered for a 10K in the Portland Marathon. I’ve been
running fairly consistently for a few years and figured this would be a fun
addition.

A few weeks in, I decided to try out the Garmin adaptive training plan. You
have the option of selecting the event, date, and a time goal. I had no idea
what was realistic, so I put 48:00, figuring I can train toward just under 8
minutes per mile - slightly faster than my usual workouts.

During setup, you have the option of choosing which days are long-run days
versus rest days and I picked Saturday for long runs and Sundays for rest.

The program is broken down into four phases, which you can view in Garmin Connect.

  1. Base
  2. Build
  3. Peak
  4. Taper

During the program, some of my long runs were as long as 1:52:00 (13+ miles)
even though I would only be racing 10K (6.2 miles). The idea, of course, is
that you train at longer distances / slower paces, so that your engine is
capable of high-intensity shorter distances.

I am not sure exactly how it decides, but the recommended workouts move around
based on performance and other data recorded by your watch, hence “adaptive.”
Some days I would be mentally prepared for a long run only to find that the
recommended workout had changed.

I was still lifting weights and doing calisthenics 3-4x/week during this
training and that likely impacted the recommendations. It definitely impacted
the difficulty!

I ended up running a 43:55 at the event despite a slow start due to the crowds.
The average pace was 7:04/mile with significantly negative splits. I had
energy to spare so I want to try again and go all-out.

A couple of weeks later I decided to run a local half marathon and completed it
in 1:34:26 - 7:12/mile (killer hills on this one!)

As someone who runs casually, I’m happy with both of these results and look
forward to improving on them.