This year, as it has every season since 1981, the selection committee for the NCAA men’s basketball committee relied on something called the Rating Percentage Index as its primary analytical tool to pick the teams and seed the field. The RPI was a useful tool in 1981, when computer rankings were far more rudimentary. But in the three-plus decades since, many folks—including myself—have noted the metric’s flaws. For one thing, the RPI doesn’t account for a team’s margin of victory. The strength of schedule component is also quite primitive, as it’s mostly based on an opponent’s record. This allows shrewd schedulers to game the system by loading up on teams that are weaker than their record indicates.
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