Prior to the official SEDAB Seeding, I'll post 2 mock brackets based on Martin RPI rankings as the mock seeding.
1 today and 1 next Sunday morning.
+/- on the left are changes in the rankings from the prior week.



It literally is counted by your strength of schedule and who you beatHookshot wrote: Sun Jan 29, 2023 11:37 pm Is there an explanation somewhere as to how the RPI is established? It’s further off this week than last week.
Care to elaborate on which teams are way off?Hookshot wrote: Sun Jan 29, 2023 11:37 pm Is there an explanation somewhere as to how the RPI is established? It’s further off this week than last week.
I completely agree that there are probably only a few that could move 1-2 spots max, but I will say sometimes those 1-2 spots are so crucial. Crucial in terms of travel and who you might end up playing. I just think there are outliers in anything that determines what these seeds are going to be. My only knock on RPI right now is it has no way to determine what the SOS is in terms of teams losing players/ players being out sick things like that. Unless it does and I just dont know about it.bbjunky81 wrote: Mon Jan 30, 2023 8:48 amCare to elaborate on which teams are way off?Hookshot wrote: Sun Jan 29, 2023 11:37 pm Is there an explanation somewhere as to how the RPI is established? It’s further off this week than last week.
I've went up and down the brackets a few times and don't see any extreme outliers. Maybe a team could move up or down 1-2 spots max but I don't see anything other than that.
Honestly, it's night and day better than the results I see each year because of certain coaching voting off emotion or lack of research.
https://martinrpi.com/about-2/Hookshot wrote: Sun Jan 29, 2023 11:37 pm Is there an explanation somewhere as to how the RPI is established? It’s further off this week than last week.
I stand by my concerns with the Martin RPI. There are key factors not included. A win or loss in the first week or two, for example, should not be weighed equally with the past month of games. In addition, there may be other factors (a key injury or illness that helped lead to 2 or 3 losses) early in the season that impacted the W-L record. Why wouldn't you want these issues at least considered? Just my observations.Tri-StateYouthSports wrote: Mon Jan 30, 2023 10:00 amhttps://martinrpi.com/about-2/Hookshot wrote: Sun Jan 29, 2023 11:37 pm Is there an explanation somewhere as to how the RPI is established? It’s further off this week than last week.
So what is RPI? In general, RPI (Ratings Percentage Index) is a quantity used to rank sports teams based upon a team’s wins, losses, its strength of schedule, and its opponents’ strength of schedule. There are currently eight states (Colorado, Florida, Iowa, Kentucky, North Carolina, Oregon, Utah, & Washington) that use RPI to rank teams in order to seed/rank teams for postseason tournaments in a manner that is fair, uniform, and completely objective.
Martin RPI Formula = (WP x 35%) + (OWP x 35%) + (OOWP x 25%) + (SSF x 5%)
WP: winning percentage. Just your good ol’ wins and losses.
OWP: average of your opponents’ winning percentages. Calculating the averages of each of your opponents’ winning percentages will give you a slightly different result than if you find the OWP by adding the total number of wins by all your opponents, total number of losses by all your opponents, and finding the winning percentage that way (this is due to the varying number of games each opponent has played. If each of your opponents have played the same number of games, the result will be the same using both methods). If calculating on your own, be sure to average the winning percentages of each of your opponents and not the other way.
OOWP: opponents’ average opponents’ winning percentage. An example for this would be like saying Ohio State gets more points for beating a 15-3 Michigan State team than Dayton would get for beating a 15-3 Davidson team. This is because Michigan State’s 15 wins come against much tougher opponents playing in the Big Ten than Davidson’s opponents in the Atlantic 10 Conference.
SSF: School Size Factor. It’s a leveled point system which makes it slightly more beneficial to play schools larger than you. Table for how that works:
D1: 5.5
D2: 5.0
D3: 4.5
D4: 4.0
For each opponent you’ve played, you’d average these values to obtain your SSF, which makes up 5% of the RPI.
I'm not sure how in the world any analytics could possibly add in what you're trying to consider. I'm also quite certain majority of coaches don't even look at those things either.Hookshot wrote: Mon Jan 30, 2023 10:20 am
I stand by my concerns with the Martin RPI. There are key factors not included. A win or loss in the first week or two, for example, should not be weighed equally with the past month of games. In addition, there may be other factors (a key injury or illness that helped lead to 2 or 3 losses) early in the season that impacted the W-L record. Why wouldn't you want these issues at least considered? Just my observations.
There is zero excuse for Gallia Academy being ahead of Ironton. Also, not sure why Vinton County is behind 3 or 4 other teams, including Marietta, Warren, Gallia, etc. And why wouldn't Marietta on the other hand be ahead of some of them, including Warren who they have a better record and beat them by 21 points last week.pembrook burrows III wrote: Mon Jan 30, 2023 10:55 am No poll is perfect. This Martin RPI is as good as any of the others, though being an Ironton fan, I don’t like the Tigers behind Gallia after beating them twice this year, home and away.
They also drop the highest and lowest vote too. So, if one coach decides to just stick it to someone, then it will get thrown outE High wrote: Thu Feb 02, 2023 1:29 am I believe you can’t vote for your own team. This has changed the voting somewhat.
If you look at the girls draw, that is pretty spot on.hoot wrote: Thu Feb 02, 2023 10:00 am Many times over the years they vote on record alone ignoring leagues and strength of schedule. We’ll see ..