Tracking Progress

I'm a huge fan of spreadsheets and data crunching...yes, I lead a thrilling life.  There's something exciting about putting a bunch of numbers or data points together to identify a trend, whether it's a positive or negative trend.  I despise statistics without meaning.  I want to know what factors haven't been included, what have, and how accurate the results are.  

So, where am I going with this?  Since I started doing triathlons, I decided it would be important to keep track of how I did in each one.  Unfortunately, triathlons are a bit different than your standard running races.  A half marathon, regardless of where you run it, will ALWAYS be 13.1 miles.  However, a sprint triathlon can have varying differences for the swim, bike, and run distances.  This made tracking my progress somewhat difficult.  Therefore I decided to add a few more columns to my spreadsheet and it involved a bit of math (not my forte), but I calculated out my pace per kilometer or mile (depends on how the race distances are calculated).  

Do you track your race stats?  How do you do it?