Summer Athletics 2009

When playing through your career, after every event, regardless of how you do you will be given stats to invest into training. It is up to you really what you invest in, but the goal is to of course max all stats to 100. The last few points will be the slowest to come, and there doesn't really seem to be a pattern to what unlocks available "potential" points. Just keep playing through your career until you have everything at 100.