Logic would dictate:

In the slow and heavy going look for horses that are relatively lightly raced compared to others in the field.

Kid's fall over in the wet all the time, and teenagers drive too fast on wet roads. Horses are only human after all.

Also, look for horses in slow/heavy capable of running well at longer distances than today's race. In the wet, horses hooves dig deeper potentially turning a 1600 mtrs race to 2000 or beyond.

Better still, look for lightly raced (relative to the field) fresh horses well down in distance.

On 28th Feb 2004 at Randwick Race 4 Daralimara was a standout. Resuming from a spell,a 5 year old with only 9 runs, down in distance from 2,400 mtrs to 1,400 mtrs.

I'd scrubbed the meeting as I was unsure of the track condition and I didn't have a bet in the race, or even watch it, but I bet she finished over the top of the other tiring runners!

In Vic she paid $27.20!

So, while not a system as such - something to look out for.

Bazza