Garmin Connect has only four "built-in" personal records that it tracks: 40km, Elevation Gain, Max Avg Power (20 min), and Longest Ride. I'd like to see some more, like Max Avg Power (5 min), One Mile Time, Metric Century Time, 100 Mile Time. I'm sure that other riders would like to track other categories.
Could Garmin Connect add more Personal Record Categories? They could be predetermined, as currently implemented. In a best world, let each user define their own Personal Record Categories, i.e. Best Time for a Given Distance, Avg Power for a Given Time, Best Time for a Given Route, etc.
Thanks for considering this request.