I know there is a website below, " thanksheaven" does a lot of research and work on the area of horse training. Unfortunately, his information is not free. Did any brothers use his services to evaluate if he provides a really good information? In fact, I used his services
many years ago and don't know if he has improved his services a lot recently.
http://www.racepattern.com/Discuz/forumdisplay.php?fid=4
He grades the condition/form of a horse in every race as 1,2,3, 4, 5 by observating the training patten of a trainer. Of course, the grade 5 means top fit, grade 4 means going-to-fit, 3 means fit , so on and so forth.