Originally Posted by DR RON

While on the question of losing runs, could somebody please give me a possible losing run figure for the following, assuming betting three selections per race

20% s/r
15% s/r
13% s/r

that is if three horses with the strike rates mentioned were backed in each race what would be a possible run of outs? I can work out individual figures but am unnsure how to work out the combined figures. Thanks