interesting thread - for what its worth i improved my overall margin some time ago by dropping races > 1600m at provincial & country tracks & have never bet < 1000m, but still have a go at city meets on distance races.

as it happens one of my favourite betting races are the 3000m jogs around mooney valley as the outcome is usually fairly obvious & at good odds.

still any sprint races with a large contingent of 1st/2nd uppers are a nightmare & rarely get my money.