I'm curious how this works out for other folks. How did your PR progression work, and when did you hit your final one (if you're over the hill)? How did you see your best event shift over the years? For me, my best event in high school was the 1600, college probably the 8k XC, and post-college the 5k.
This is age vs. the events with a PR in that year.
Age: PR events:
14 400,800,1600,3200,5k
15 400,800,1600,3200,5k
16 800,1600,3200,5k
17 800,1600,3200,5k
18 800,3200,5k,8k
19 1500,3k,5k,8k
20 1500,3k,5k,8k
21 400,5k,8k
22 1500,3k,5k,8k,10k,13.1
23 13.1
24 50k
25 5k, 26.2
26 None