With respect to the RPI
Turbine said:
What exactly flaws it?
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The RPI is flawed because of the regional nature of college baseball. College baseball lacks sufficient inter-regional play to make the tool worthwhile in my opinion. Remember that your RPI score is based on your W-L record, your opponents' W-L record, and your opponents' opponents' W-L record.
If you have a bunch of teams on the West Coast that are very good, but all they do is beat up on one another, you are going to have low RPIs. On the other hand, northeastern teams play predominantly against each other. W-L records are inflated because of the weak regional competition. Since these schools do not appropriately mix games with other parts of the country, you do not get a true reading as to the strength of a given team. This is why you see a number of northeastern schools with inflated RPIs. You also see this in smaller conferences on the east coast. On the other hand, western teams tend to get brutalized. The ISRs seem to do a decent job of offsetting these shortcomings.
If you had a round-robin schedule where each team played each other team the same number of times, you would get an accurate reading (Ex. MLB, or very close).
Did I explain it well enough? I can provide an example if you like.
Brian