your Garmin also had it short by 0.1mile?
Previous years my Garmin (same unit) has said 13.00 and 13.07. I expected this year to be a bit short because everyone was using the road instead of path on the last 3 miles.
good point, i definitely used the apex every time.
Wondering why you get best efforts on 10k, 10mile and 20k... It never shows up for me (known bug with Strava). I see you using Edge device, I use Garmin610, but I dont see why this would make a difference. Strava's useless at this point.
I don't know, wish it was a bit longer so I could get best half marathon recorded tho!
Do you upload the .tcx or use the connect to device plugin?
I usually upload via device, but i tried uploading tcx file too, almost never get better than 2mile best efforts. Strava did acknowledged there was a bug in the algo (basically a tiny bit of negative elevation would negate a best effort), but said they're working on it. Now I'm puzzled as why you do get lnger distance best efforts, especially on the very same course as I did, does not make sense.
Could try editing the .tcx to take out all the altitude tags? It looks like your profile has more sharp spikes so maybe some of those are messing it up?