Ozpunter - Look up the postings made by osulldj to this forum and you should find some very interesting reading about sectional times and related issues such as pace.

osulldj (Daniel O'Sullivan) used to post regular to this forum but now is too involved with a commercial ratings/form provider to share his thoughts any more.

Also look up trb and the Form Pro in google or whatever search engine you use and if you can afford it, purchase the revised version of Tom Brohamer's Modern Pace Handicapping.