Hey guys I'm just wondering what to expect in a pace difference going from 2500' to 5500'. I run 9 minute miles wether I'm running a half or full marathon ( ya I know, give me a break I'm in my late 40's ). My wife signed us up for a half marathon at Banff with an elevation of around 5500' I'm just wondering if you think I should back my pace off and by how much? I hate starting out too fast and then barely dragging my sorry butt over the Finnish line.