My favorite TrainingPeaks chart in the dashboard, the Performance Management Chart
This chart covers the entire time period I've worked with my coach, from September 2008. The blue line, CTL, shows my fitness level. You can see the build up from scratch to my first Ironman, then the post race recovery, the build up for my A race of 2010 (Austin) and the subsequent recovery, the build last year to IM AZ, and now this year - my blue line at its highest point ever! Just a few weeks ago I was marveling that I was almost to the peak I reached last year and now the heavy training I did in May just launched me past that.
Who knows how far it will go in the next 3 months before IM Canada?!