You can configure it via prizes to do it manually, but as far as an actual formula, I cannot think of one other than to use a switch (other posts in this forum will show it, i'm not personally familiar with it). As far as the rest of the places go, I'd recommend that you put a '1' where it allows a point for buy ins and reducing the points by one, (ie 9 for first) and that way you'll get ten for first overall (9 for the place, plus one for playing)