I'm running Chester for the first time in October (it's actually my first Autumn marathon - I've done Manchester three times and Liverpool twice) and was wondering about the course. I've seen it touted as a PB course, but I've also read reports that it is undulating (with a hill at mile 24). Just wondering which is the case! Obviously Manchester is as flat as a marathon can be, but I'd describe Liverpool as hilly whereas one of my friends thought it was flat (it bloody isn't!) so I realise opinions are subjective.