2023 - Round 15 : A Second Half-Dozen
/This week’s fare can be neatly described using ladder positions and expected margins as follows:
One game where the teams are separated by one ladder positions and where the line is 3.5
One game where the teams are separated by three ladder positions and where the line is 58.5
Three games where the teams are separated by between five and seven ladder positions and where the lines range from 3.5 to 24.5
(Note that I’m using a competition ladder that uses match ratio to adjust for byes)
On average, the opposing teams are separated by 4.7 ladder spots this week, and the correlation between expected bookmaker margin and ladder position difference is +0.66.
The overall average bookmaker expected margin is 18.5\7 points per game, which is up by almost 6 points on the Round 14 average, but down by about 2 points on the all-time average for Round 15s. It leaves the all-Season average at just under 18 points per game.
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