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Why is a "perfect score" 180 points? Under KCBS rules, a table of six judges is given a tray of entries
to judge, and each of the six judges awards each meat entry a separate
score (from 1 to 9) in three areas: appearance, tenderness and
taste. The KCBS computer program calculates the total score for
each entry by the six judges, discards the lowest score, and totals
the other five scores, which is the team's score for that entry.
If a judge scores an entry with the highest score (9) in all three
areas, the total score is not 27 points (which would be 9 points per
area times 3 areas). Instead, the highest score for an entry by
a single judge is 36 points.
Thus, if the five highest scores are each 36 points, then the entry
receives a "Perfect 180" -- since 5 times 36 equals 180.
The historical reason that the highest score by a single judge 36
points is that, until a few years ago, the taste score was doubled and
added to the appearance and tenderness scores. This is called a
"weighted score" system. Thus, if a judge scored 9's in
appearance, taste and tenderness, then the total score was 36.
A few years ago, KCBS decided to change the weighted score system.
Instead of making the taste score worth twice as much as both
appearance and tenderness, the new system weighs the tenderness twice
as much as appearance, and it weighs taste twice as much as
tenderness. In other words, if appearance is worth 1, then
tenderness is worth 2, and taste is worth 4: four times as much
as appearance. However, KCBS wanted to keep 180 points as a
perfect score and thus to keep 36 points as the highest possible total
score by a single judge, and KCBS decided to continue the basic system
that each judge awards a score of from 1 to 9 in the three areas of
appearance, taste and tenderness.
To reach this intended result, KCBS changed the weighting formula.
As described in the KCBS Rules, the new system weighs the appearance
score times 0.5714, tenderness times 1.1428, and taste times 2.2858.
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