Personal Record History

There are some really old posts on this (10 years old!), but i want to bring this issue up again.

How, if at all, can you see a history of your personal records? I want to look back at previous 5k times, so i can compare them to my current record and track the progress over time. 

So many stats saved for everything else, so it amazes me that this isnt a feature!

Thanks.