Seg,
There are places were you can purchase "par times", but I am not going to recommend any. Andrew Beyer was the first to show how to build his par times in his book on speed ratings.
http://www.angelfire.com/la2/Louisia...artsBeyer.html
Check out the above address and go to the bottom of the page for the 1 turn and 2 turn Beyer charts.
Then there is page (92) in the Pace Line Manual that explains how to convert fractional times that may interest you.
Ray