I assume you're talking about the Rock n Roll San Diego marathon this june? If that is the case, then yes, I would say this is a fast marathon. The only real hills are from mile 7-10 where you have to run up the 163 highway, but it's not too steep of an incline, but still hard work. After recovering from an injury, I was able to break 3 hours on this course in 2007. I would say the NYC marathon is a lot harder than this one, so you definitely have a shot at sub-3 at RnR SD. Comparing it to Boston, hands down it's faster. Good luck!