Show HN: my latest project, a webapp for coaches

After several failed projects, I finally have decided to work in a niche where I have some domain knowledge. It's a web app for coaches to organize and track their athletes' training schedules.

The site is http://www.coachulous.com

I'm psyched about having gotten an MVP out the door in about two weeks of evening and weekend work, but I'm still very much groping in terms of market focus. The app is meant to be flexible enough that it could be used by life coaches, personal trainers, etc. as well as freelance triathlon coaches. However, I'm not sure that trying to address the market of "people who do coach-like things" is 1. feasible or 2. a good idea. I'm tempted to focus on triathlon coaches, because that's an area I know.

I'd love your feedback!