I looked at what it would take to get into even the running for 5kms at the Olympics for Canada. Easily need a sub 15mins 5km. I sucked cock at running when I started. I'm down to 30mins for 5km (last run in november; I hate treadmill running and live in Canada). It would take sooo much fucking work to get down to 15mins 5k, years of work. I'd be lucky to get there by 35.