Thats strange.
You are just like me.
I don't know whether my selection will be a winner or a LOSER until after the race either

But what I do know, is that I am more confident about some of my selections than of some of my selections.

If the selection system is via a dartboard, then each selection will have similar confidence in there winning.
But I select by looking at whatever information I need to assess which animal has the best Chance of winning a Race.
I do this for all Races.
Some Races I have no interest in for various reasons.
But some races have more doubts that haven't been solved than others, and these are the Race selections that I will invest less on, on invest more on the animals where studies indicate much closer certainty of the animal beating the rest home in the race.

The investment has no relation to the previous Race or any Race in the Future.
It could vary depending on your Current Bank Balance , but only every day, not every bet.
Tha amount won or lost per day has no bearing on winning days or losing days.
It has bearing on how confident I am with my selections.

So if I'm not REAL confident one day about say 4 Races at a Meeting, then I might invest say $5 on each of those selections, and if they win I win little, and if they lose, I lose little.
But if I come up with 4 Best Bets, then I woud have say $20 on each selection.

Its just you bet on how confident you are on each selection relative to the other selections.