In an 8 horse race 100% of the winners are in the first 8 favorites.
I pulled the results for 8 runners.
4334 races
Fav 1 1500 wins 34.6%
Fav 2 970 22.38%
Fav 3 654 15%
Fav 4 481 11.1%
Fav 5 304 7%
Fav 6 220 5%
Fav 7 132 3%
Fav 8 73 1.68%

Which probably only proves that in 98% of all races there is at least 1 horse in a race that has no possible chance of winning.
Regards Beton