Dutching with a saver bet

Description

This is a variation of Dutching, but with one "saver" bet, whereby the profit/loss on one of the selections is zero, so it merely returns your stake if the selection wins, and does not lead to any loss if the selection loses.

These triggers are based on the following set of formulae:

Single-Market Dutching Formulae

Why would you need  saver bet? Well, if the favourite has a much lower price than other selections, backing it along with others will create a huge liability yet provide little in terms of profit. So it makes sense to place a saver bet on the favourite in hope that if it wins, you won't win or lose anything, but if another backed selection wins instead, your profit will be higher than if you had backed also on the favourite.

The reverse is true for LAY Dutching: if you lay on one of the selections with a saver bet, you will slightly decrease your liability without risking anything (the P/L on the saver selection will be zero).

Triggers

Download the trigger file.

Use the following constants to adjust the settings:

saver_rank Rank of the horse for the saver bet
min_rank Min. rank of the horses to bet on, except the saver bet
max_rank Max. rank of the horses to bet on, except the saver bet
liab_size Liability size
min_profit Minimum profit, % of the liability
min_runners Min. number of runners
max_runners Max. number of runners
mins_before_start When to place the bet, minutes before start

How it works

The file contains two blocks -- one for backing and the other one for laying. The liability is fixed, the profit is defined by the min_profit constant.

After the bets are placed, you will get a picture similar to this one:

BACKING

Back Dutching with a saver bet

LAYING

Lay Dutching with a saver bet

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