Initial Handicaps for the 2022/23 Season
Thanks to the nasty COVID , Tullamore has no real data of real bridge with regards to players performance in order to set Handicaps to give everyone a equal chance!
The only guide is previous attainments. That is CBAI Master Points and the CBAI grades. I propose for the new 2022/23 season initial handicaps by latest
grade as follows :-
Grade Handicap % Needed to make 65% {expected win!}
Master 0 65
A1 -6 59
A2 -8 57
B1 -11 54
B2 -14 51
N1 -17 48
N2 -20 45
CBAI grading system is described on the WWW.CBAI.IE web site in the following document
https://www.cbai.ie/wp-content/uploads/2018/10/MASTER-POINTS-SCHEMERevisedMay2017.pdf
Normal Tullamore handicap methodology
The handicaps are based on the strange and wonderful CBAI handicap system. The good news is no one actually gets handicapped but gets additional help depending on their actual performance.
A player gets an handicap after player at least 6 times. This can change and we can be persuaded to alter this criteria.
Setting Players handicaps cbai.ie/tournament/HandicapSystem.asp
Using the CBAI Handicap Guidelines,
- A player's handicap is the difference, in percentage, between the Club’s average winning percentage (currently about 62%) and the player’s average gross percentage over a period. For example, a player with an average of 50% would have a handicap of 62-50 = 12%
- Scaling as per CBAI reccomendation we will scaled handicaps by 2/3 . This introduces a little more variableity and uncertainy into the system. Where playing your and obtaining your average does not get a winnig score, you must get a little more {NOT MUCH!} than your average to win.
Phoenix will used our entire online period to determine player's average gross score. Players need to play at least 6 games to qualify for a handicap and until6 are played players handicap will be remain at 0 and get no help from their handicap {!!}.
Process
1. Using Actuall gross average percentage score on all Phonix Tuesaday nights, call that G say {provided at least 6 games have been played else you have 0 handicap}
2. Take that from the 62% supposely the average winning score in duplicate bridge club games
3. Scale by two thirds {to add a factor of bad and good night for player}
Handicap H = (62-G) *2/3
4. Round down to nearest 0,25%
e.g. 1. Paul Harrison gross avg is G = 55.07 H =(62-55.07)*2/3 = 4.62 rounded down to nearesr 1/4 = -4.5 {- becuase of adding CBAI perculiar handicapnotions!}
e.g.2 Frank Kelly G=60.89 H = (62-60.89)^2/3 = 0.74 round down to nearest and made negative Franks Handicap is -0,5
Worked examples in How are handicaps used in scoring?
(a) Fred with handicap of 12. Fred has had a Club average gross score of 50% . His score is adjusted up by his handicap of 50 +12 to 62% a potential winning score
if he has a poorer game say 45% his new adjusted net score becomes 45 + 12 = 57%
if he has a good week and gets a gross score of 55% is adjusted to 55+12 = 67% a winning score!
(b) Daisy is new and played 6 games, her handicap is 22%
She score a very reputable 45% gross adjusted to 45+22 = 67 % winning score!
Ref: Appendix VII to CBAI’s Organisational Guideline for Clubs – “Suggested Handicap System for Clubs” ( cbai.ie/tournament/HandicapSystem.asp ).
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