Some Statistics
Sustain hands are very rare – like summer showers or winning lottery tickets. I have a program which plays Bridge within which I can develop and test bidding systems (if transcribed into python). This is what I am using to develop the MMMMajor Bridge Bidding System.
As this system is built around the Sustain Opening bid (and its use as a Response), here are the results of a quick test
Level | Total Hands | Hands Won | Success (%) |
Part Score | 3804 | 3562 | 93.64% |
Game | 5300 | 4918 | 92.79% |
Slam | 896 | 737 | 82.23% |