I got a late start for my 20 miler today, too. The LSD walks I am doing now are a lot different than what I have been doing, because I am still trying to walk lots of hills, and also trying to learn how to optimize time at aid stations.
So, I set up my mini aid station at my mom's house again this weekend. Started out at 9:22 am and it was overcast. My mom said there was a front coming through soon, and the wind was going to pick up. Steady 20mph winds with gusts up to 30mph. There is one place on the route where I walk up a big hill and I am headed directly north. I nearly got blown backwards a couple of times going up (I walked up this hill 3 times and also down 3 times) and almost had to run downhill to avoid being blown over onto my face. Once or twice, I just felt like sitting down on the side of the road and crying.
Anyhow... got it done, slow enough to say it was training for a 100 mile race. 20.26 miles in 5:17:01, (including 20 minutes stopped at the aid station) average pace 15:38, average HR 138 or 71.14%, elevation gain/loss 1700 feet. I added an out and back section to the loop so I would not have to walk as many loops, it was about 2.4 miles and only has one big hill at the beginning/end. Looks like that was a mistake because the shorter loop has more rise and fall. Two weeks ago when I walked 16 miles, I climbed 2000 feet.
Oh, well, I have until June to get this right.