There seems to be a lot of encouragement and positive energy around running with others (park run, running clubs etc.).
I said I would do one but to be honest, I just don't like the idea of running with others.
Running for me is time alone, out of the house where I can, zone out, pray (as a Christian I find myself very away of God's creativity in nature), catch up on some music or podcasts etc.
I am very competitive, but only against myself, so being the slowest person there wouldn't bother me as long as I was quicker today then I was yesterday. Likewise being the fastest wouldn't do anything for me (except I would really worry about the health of the other runners!) if I was slower than last time.
Now, I realise asking the internet 'is it me' is always an interesting and exciting time :-), but how many others are 'solo runners'?