back dutch maximum the 4 horses that have the higher back price average differences and also their last back difference ( at 1 min before the race ) is also among the 4 th higher difference
for each horse in the race estimate the average changes in back price at in different time periods as follow1)back price at 10 min 82)back price at 7 min 7.00 difference 13)back price at 5 min 7.90difference -0.904)back price at 3 min 5.90difference 2.005)back price at 2 min 6.00difference -0.106)back price at 1 min 5.20difference 0.80