Baseball Rankings - 3/3

[LifeTimeCajun]

Scotto25 knows more than Brian about RPI. Fa sho

[CajunAlum10]

Coaches Poll out, we are #13 -- tied with Louisville for the 13th spot actually, kinda weird.

[cajunhawk]

Coaches Poll out, we are #13 -- tied with Louisville for the 13th spot actually, kinda weird.

Let's have an impromptu fight in a cornfield for the UL designation.

[CajunAlum10]

Let's have an impromptu fight in a cornfield for the UL designation.

Battle of the "dash" vs. the "of".

[scotto_25]

Scotto25 knows more than Brian about RPI. Fa sho

HAHA!

[ImperialCajun]

RPI is almost predetermined as they will give every conference points for their name. Have you noticed how our conference has been doing head to head against other conferences. Our conference is way tougher than anyone in the money conferences will ever admit. Only in America can you be one of the last 4 teams standing and end up ranked 9th in the country. Rankings are prejudiced to say the least and absurd to say the most. Go Cajuns!!!

[MiamiCajun32]

43rd in RPI per http://warrennolan.com/baseball/2014/rpi

not useful to look at. Yale is #16.

[CajunRage]

RPI is almost predetermined as they will give every conference points for their name. Have you noticed how our conference has been doing head to head against other conferences. Our conference is way tougher than anyone in the money conferences will ever admit. Only in America can you be one of the last 4 teams standing and end up ranked 9th in the country. Rankings are prejudiced to say the least and absurd to say the most. Go Cajuns!!!

I think you are thinking about rankings being predetermined. RPI exists for this exact reason.

[MiamiCajun32]

RPI is almost predetermined as they will give every conference points for their name. Have you noticed how our conference has been doing head to head against other conferences. Our conference is way tougher than anyone in the money conferences will ever admit. Only in America can you be one of the last 4 teams standing and end up ranked 9th in the country. Rankings are prejudiced to say the least and absurd to say the most. Go Cajuns!!!

that's why Yale is #16 and Dartmouth is #5 in rpi, although both 1-2 records. Its the IVY league being so overrated.

[Cajun_RH]

that's why Yale is #16 and Dartmouth is #5 in rpi, although both 1-2 records. Its the IVY league being so overrated.

Those two teams have played a combined 6 games. Which is why it is entirely too early to use RPI as a measuring stick.

[GoneGolfin]

43rd in RPI per http://warrennolan.com/baseball/2014/rpi

I do not think anyone has these calculations down perfectly yet. Warren has one set of numbers, Boyd has another, and mine differ slightly from both of them. I did peek under the covers of Warren's data (not possible with Boyd) and I think he may be calculating SOS incorrectly ... in particular it may be OWP (but also possibly OOWP). I sent him a note to discuss ... will see if he responds.

In any event, for those interested in the details as to how OWP is calculated for a given team ...

- Take the Div. I W/L record for each of your opponents and remove the results of your games against that team.
- Calculate the above winning percentage for each opponent to four decimals of precision.
- Weight that winning percentage by the number of games played against each respective opponent.

DO NOT sum the weighted W/L records of each of your opponents (non-Cajun games) and then calculate the percentage on that summed W/L record. This will yield a different result. This *seems* to be what Warren Nolan is doing.

Example:
Southern Mississippi is 6-6 overall. However, they are 6-3 in games not involving the Cajuns. Hence, for OWP purposes we use .6667 * 3 (weighted by three games played).

- Then take all of the calculated weighted percentages and add them. Divide that sum by the total number of games played. You then have your OWP.

Note: OWP calculations do not use the home/road weightings that WP calculations use.

Example using Cajun opponents ...

Eastern Illinois (2-10) ... 1-7 in non-Cajun games = .1250 * 4 (games) = .5000
Northwestern State (6-4) ... 6-3 in non-Cajun games = .6667 * 1 (game) = .6667
Southern Mississippi (6-6) ... 6-3 in non-Cajun games = .6667 * 3 (games) = 2.0000
LSU (9-2) ... 9-1 in non-Cajun games = .9000 * 1 (game) = .9000
Alabama (5-5) ... 4-3 in non-Cajun games = .5714 * 3 (games) = 1.7143
--
Total: 5.781/12 games = .4817 (note the above uses rounded figures to four decimal places)

This is obviously different than the summed 49-50 record (.4949) ... and in some cases, the difference can be much more significant.

Thus we have the following RPI calculation for UL ...

WP = .7937
OWP = .4817
OOWP = .6137
SOS = .5257
--
RPI = .5927

On Warren's site, if you look at the SOS page, he calculates an opponents winning percentage of .4949 (49-50) by summing the weighted W/L record of each Cajun opponent and calculating the winning percentage. His SOS comes to .5249. His OOWP calculation is thus .5849.

Brian

[cajunhawk]

I do not think anyone has these calculations down perfectly yet. Warren has one set of numbers, Boyd has another, and mine differ slightly from both of them. I did peek under the covers of Warren's data (not possible with Boyd) and I think he may be calculating SOS incorrectly ... in particular it may be OWP (but also possibly OOWP). I sent him a note to discuss ... will see if he responds.

In any event, for those interested in the details as to how OWP is calculated for a given team ...

- Take the Div. I W/L record for each of your opponents and remove the results of your games against that team.
- Calculate the above winning percentage for each opponent to four decimals of precision.
- Weight that winning percentage by the number of games played against each respective opponent.

DO NOT sum the weighted W/L records of each of your opponents (non-Cajun games) and then calculate the percentage on that summed W/L record. This will yield a different result. This *seems* to be what Warren Nolan is doing.

Example:
Southern Mississippi is 6-6 overall. However, they are 6-3 in games not involving the Cajuns. Hence, for OWP purposes we use .6667 * 3 (weighted by three games played).

- Then take all of the calculated weighted percentages and add them. Divide that sum by the total number of games played. You then have your OWP.

Note: OWP calculations do not use the home/road weightings that WP calculations use.

Example using Cajun opponents ...

Eastern Illinois (2-10) ... 1-7 in non-Cajun games = .1250 * 4 (games) = .5000
Northwestern State (6-4) ... 6-3 in non-Cajun games = .6667 * 1 (game) = .6667
Southern Mississippi (6-6) ... 6-3 in non-Cajun games = .6667 * 3 (games) = 2.0000
LSU (9-2) ... 9-1 in non-Cajun games = .9000 * 1 (game) = .9000
Alabama (5-5) ... 4-3 in non-Cajun games = .5714 * 3 (games) = 1.7143
--
Total: 5.781/12 games = .4817 (note the above uses rounded figures to four decimal places)

This is obviously different than the summed 49-50 record (.4949) ... and in some cases, the difference can be much more significant.

Thus we have the following RPI calculation for UL ...

WP = .7937
OWP = .4817
OOWP = .6137
SOS = .5257
--
RPI = .5927

On Warren's site, if you look at the SOS page, he calculates an opponents winning percentage of .4949 (49-50) by summing the weighted W/L record of each Cajun opponent and calculating the winning percentage. His SOS comes to .5249. His OOWP calculation is thus .5849.

Brian

Mind...Blown...