Further on this
7 horse races 3024 races (7%)
Fav 1 .. 1090...36%
Fav 2 .. 682 ...22.5%
Fav 3 .. 484 ...16%
Fav 4 .. 351 ...11.6%
Fav 5 .. 214 ...7%
Fav 6 .. 138 ...4.56%
Fav 7 .. 65 ...2.1%
Again the last fav only has a meagre chance of winning