Everything, from the 100m time to the height in pole vault, has to be converted into points, that make up the final score in a decathlon. To do that, there are exact formulas and scoring tables.
This handy combined events points calculator allows you to calculate both of men's and women's decathlon, heptathlon and pentathlon scores. Also adjust for junior competitions.
The Decathlon's nice in that you get to know the other athletes. It's almost like everyone helps each other out. We're all out there trying to win, but at the same time there's a friendship there too. It's always fun going to meets and catching up with the other guys - Tom Pappas