Getting back into the groove

So it's a while since the marathon now (about 6 weeks) and I'm just beginning to get back into the running groove. I've done a couple of club runs but mostly I've been jogging this 3.43 mile route.
I've felt various aches and pains but I've managed these times:

1. 29' 36
2. 30' 17
3. 30' 31

Which is OK but I need to push myself a bit more and pick the speed up. Tonight I ran in a 5k race at Park Hall, Oswestry and finished in a time of 22' 24. I'm reasonably pleased as I twice had to do up my laces and finished with plenty in the tank. Good to be back on the road