Dumb RPI Question

[Murph]

Is it possible for more than 64 teams to have an RPI of 64 or less?

Does that make sense?

[tornado]

Re: Dumb RPI Question

Is it possible for more than 64 teams to have an RPI of 64 or less?

Does that make sense?

nope, because only one team is RPI #1, and only one is RPI #2, etc....so only 64 teams have RPI's of 64 and less.

[patrick_o'brian]

little trivia:
Q:What does RPI stand for?
What is the formula for calculating the RPI?

Throw out some guesses and we'll see if anyonw knows.

[houstontxbrave]

little trivia:
Q:What does RPI stand for?
What is the formula for calculating the RPI?

Throw out some guesses and we'll see if anyonw knows.

I think it stands for Really Packer your an id*ot

Does it stand for the school that invented it Rensselaer Polytechnic Institute?

[squirrel]

RPI stands for: Ratings Percentage Index

The known formula is:

.25 your wins x .50 opponents wins x .25 oponnents opponents wins

there is an unknown weight for road and neutral games (also rated as semi-home and semi-away).

It is very remotely possible to have more than 64 teams inside RPI 64 as teams could potentially have an exact percent. However, it is very rare as they just keep going to the next decimal.

[MacabreMob]

From Jerry Palm's site:

What is the RPI?

The RPI (Rating Percentage Index) is a measure of strength of schedule and how a team does against that schedule. It does not consider things like margin of victory, only whether or not a team won and where the game was played. It is used by the NCAA as one of their factors in deciding which teams to invite to the NCAA tournament and where to seed them.
It was created in 1981 and is maintained by the NCAA Division I Men's Basketball Committee. They have always placed a premium on schedule strength when selecting teams for the tournament, so they wanted a relatively simple way to measure that and the RPI was born.


What is the formula?

The basic formula is 25% team winning percentage (WP), 50% opponents' average winning percentage (OWP), and 25% opponents' opponents' average winning percentage (OOWP).
Beginning with the 2004-05 season, the formula was changed to give more weight to road wins vs home wins. A team's win total for RPI purposes is 1.4 * road wins + neutral site wins + 0.6 * home wins. A team's losses is calculated as 0.6 * road losses + neutral site losses + 1.4 * home losses.

For example, a team that is 4-0 at home and 2-7 on the road has a RPI record of 5.2 wins (1.4 * 2 + 0.6 * 4) and 4.2 losses (0.6 * 7). That means that even though it is 6-7, for RPI purposes, it is above .500 (5.2-4.2).

This "weighted" record is only used for the 25% of the formula that is each team's winning percentage. The regular team records are used to calculate OWP and OOWP.

As always, only games against Division I opponents count in the RPI.

[MacabreMob]

there is an unknown weight for road and neutral games (also rated as semi-home and semi-away).

From Jerry Palm's FAQ's:

What about the NCAA's secret adjustments?

The secret adjustments no longer exist under the new formula.

[patrick_o'brian]

VERY GOOD GENTLEMEN!