How bad

Took all the family to see the new Harry Potter movie in Bracknell this morning.
So this afternoon I had earned time to do what I wanted.
Running I go!

The idea was to go for a 3 mile circle (approx) and run it at a pace that I will have to maintain to achieve a 2hr half marathon, thus enabling me to gauge how bad I am and how much work I need to do.

So....
2.8m
26mins
158bpm (180max)

I struggled to keep the pace up and it was really hard work.
So now I know.
Gulp.