Yeah me! I ran 21.1 km yesterday and completed it! It wasn't easy let me tell you.
First of all I started too fast, then my Garmin watch got all screwed up and my bud Sylvia was feeling great and we separated so I ended running it mostly by myself :(.
I was totally feeling great until about 10 km when my feet and knees started killing me so today my knee feels sore. I was last to finish but Sylvia, her friend Mike and the group leader Steve were there to see me finish - it was nice as Steve had water and Gatorade ready for me. (he had his wife and son have a water station 1/2 way through the course too).
I now know what it feels like and will be more prepared for April 11th at Run for Retina - the race we are all doing.
I now can say to anyone that asks, if I can do a 1/2 marathon you can too - trust me!!!!