Running free!

Do you run with or without a watch? The last race I ran (Margate 1/2 Marathon) I completely forgot to bring my watch which meant I couldn't tell how quick or probably more accurate how slow I was running. I was also surprised to see how many people there weren't wearing watches I know because I asked a few people how long we'd been running!

It got me thinking does running wearing a watch actually impede your running? I know that when I run wearing a watch I will often check the watch to see how I'm doing and if I'm running too slow try and speed up, but is this necessarily a good thing?

Just some food for thought!