Tunnel Vision Marathon 2024: Bathroom, Bad Shoes, OOD

running
marathon
machine learning
personal
race
3:46:13 at Tunnel Vision Marathon — PRs at 10K/15K/HM splits, but a bathroom emergency, slightly large shoes, and untrained quads on a downhill course did the rest.
Author

synesis

Published

August 11, 2024

Running update: today is the day for Tunnel Vision marathon race! I got up at 4:30am, left home at 5:30, arrived at the starting point 6:45 at Snoqualmie Pass, and started running 7:10 sharp! Official results are not out yet, but here are the ones according to Strava:

Three things went wrong after I crossed the midpoint:

  1. Bathroom emergency. :-(
  2. My slightly larger shoes revealed their evil past this point, and started to wreck my toes as they repeatedly hit the front of the shoes in this all-downhill course.
  3. My quads were spent, starting at mile-16, and especially in the last 2 miles, to the point I could only walk-run to finish the course.

Moral of the story: too much of good things (downhill) is actually bad for you, especially if you haven’t trained adequately for them! To use machine learning concepts: I’m essentially suffering from OOD (out-of-domain) testing: my training and testing conditions do not exactly match, and when the “good things” repeatedly hammered my less well-trained parts (shoes and leg muscles), they failed.

But hey — I finished it! This also completes two of my three 2024 running goals: earn at least 3 PRs in the weekly Parkrun 5K (got 4), and run 3 marathon races (this is the third)! But there are more fun this year: one half marathon race in September, and two marathon races in October and December are waiting!

Originally posted on LinkedIn.