Would you be looking at rules to improve strike rate or return?

Interesting Facts: 57% of winning horses finished 1st, 2nd and 3rd in previous race.

71% of winners were 4 or older
76% of winners were male
73% of winners raced within previous 14 days
78% of winners carried the same weight or less at their last race
84% of winners ran in the same class or lower at their last race
49% of winners ran the same distance as last start
63% of winners finished within 2L last start

But the problem here is in combination they don't necessarily improve or if you bet outside these variable ranges you can often find so much more value.