canalrunner wrote:It can be done but the real question would be why. You can run a marathon in three weeks by recovering rather than running between now and then but it may be hard and perhaps disappointing if you want to truly race it. Ottawa in six weeks gives you more a shot at racing it but I understand you can't do. I would also say although Ottawa has been ocassionally been hot, I can't remember Boston hot and with the 7am start provides at least a couple of hours of cool running even on the hot days. Think you are better to look at a June (Calgary??) or July (San Francisco) marathon. In my mind, a little more time is always good unless you are goal is to be Andy. And there is nothing wrong with that.
Calgary is the same weekend as Ottawa, its likely to be much cooler but running at 1100m of elevation could be an issue if you've been training at sea level.