The maximum and minimum values for each rating are as follows:-
Main Ratings = -400 to 375
Main+Stats Ratings = -650 to 770
Stats Ratings = -400 to 400
Tissue Ratings = 0 to 170
PFR Ratings = -12 to 140
Trainer Stats Ratings = -50 to 100
Jockey Stats Ratings = -70 to 100
Trainer/Jockey Comb Stats Ratings = -50 to 100
Horse Stats Ratings = -360 to 100
Pace Ratings = 0 to 12
Official Ratings = 0 to 179