Help with RPI
- Thread starter bbc
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JG10Hawk
Well-Known Member
The RPI is skewed early in the season. With 300+ teams and so few games played, this means good teams that have played more 250+ RPI teams rather than 150-250 RPI teams, haven't played/beaten enough tough teams to weather the skewness. So some teams that have played more 150-250 RPI teams have a much higher RPI than they deserve.
The skewness is always there but it has a diminishing return as more games are played. Hope that made sense and helps.
The skewness is always there but it has a diminishing return as more games are played. Hope that made sense and helps.
hawkforlife9
Well-Known Member
Tonight will help. NC lost to Butler. Not nearly as good as their ranking. Here's our chance.
SnapBack2
Well-Known Member
Stolen from the College RPI website ...
What is the formula?
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).For 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.
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.
1977Hawkeye
Well-Known Member
The next two games are going to hurt. Both oppenents are in the 300's, but the next 3 after that are all against Top 100 opponents:
http://espn.go.com/mens-college-basketball/rpi/_/teamId/2294
Not sure N. Florida will stay there, but at this point, that wouldn't be a "bad win". Then conference play starts. So I'm not too worried about Iowa's RPI, just as long as they continue to play decent basketball once Big Ten play starts.
http://espn.go.com/mens-college-basketball/rpi/_/teamId/2294
Not sure N. Florida will stay there, but at this point, that wouldn't be a "bad win". Then conference play starts. So I'm not too worried about Iowa's RPI, just as long as they continue to play decent basketball once Big Ten play starts.
