hi
from my prev post.
try not to use part of the set variables as a variable name
you have used back as your bet amount, back is part of a few set variables.
it would be better to just use ba (short for back amount)
and it happened
because you gave back a value of 10, it affected the back_price variable, thus giving the back a value of 10 and back_price a value of 10_price.
NEVER use part of the set variables as a new user variablealso the sel has no value so r_sel_ etc has no selection value.
so your formula should be.
selections trigger expression (100/winplace_actual_sp)*(winplace_actual_sp-winplace_back_price) is equal or greater than wmfs
your bet amount variable needs to be changed to ba
change these and your trigger will work
mcbee