Had my worst run yesterday, my brain and legs werent getting on with either me or each other. Within 5 minutes I felt like I'd had enough and would be lucky if I managed 10minutes, my legs were aching and I just wasn't enjoying the way I usually do. Another 10 minutes down the line and I was still struggling!
Anyway I somehow dragged my brain and legs round and got in the zone in the last 10 odd minutes, and completed the 5k, only to find out I'd done my fastest one yet! Needless to say I was very surprised!