Always bear in mind when setting prices in dutching, that unless you can get fixed odds, that you are at the mercy of the price fluctuations, therefore any significant movement in prices can see you dutching 4 horses and getting the winner but still losing on the race.

You may also like to consider say taking the favourite only to recoup your investment (a saver), but the next three to make a profit. That way when the favourite wins, at least you get money back, but if one other salutes, you make a lot more profit.

Just a factor to consider there.