try these combinations for selections in any gallops race
112
121
131
113
221
strike rate is excellent
william

I tested your idea over several thousand races .
I was not able to pull a profit unfortunatly.

It would probably show a profit if used on the top 2 selections in the tipsters poll e.g. The Australian , beceause they have a 45% SR of one of the 2 getting up.Year in & year out .

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Cheers.