Most challenges are meaningless anyways. I didn't realize that she was a 10k and half-marathon runner though. I wonder where she gets the time to train. Tried looking up her results online to see how fast she is but I couldn't find anything.
Here you go: https://racestats.or...Helps&Tab=Table
she says in the article her pb is 52 minutes.
I almost didn't want to share this, but check the results above: historical race data, searchable even by participant. Her PB is actually 47:45 in 2010.