Soccer, Hoops Next to Seed Using MPR
August 6, 2019
By Rob Kaminski
MHSAA benchmarks editor
As the topic of seeding for MHSAA Tournaments continues to swirl in the air of numerous committee meetings on an annual basis, one of the primary concerns continues to focus on the simple question: “How?”
The MHSAA for years has been working behind the scenes on potential formulas which could best be used as a standardized tool to assist in measuring strengths of teams in a given sport.
This spring, the MHSAA introduced the Michigan Power Rating in the sport of Boys Lacrosse. The Representative Council approved limited seeding beginning in 2019-20 for girls and boys soccer and girls and boys basketball, and MPR will be the metric to determine which two teams must be seeded on opposite sides of District brackets in those sports.
“The boys lacrosse tournament has been seeded since it was added as an MHSAA-sponsored sport in 2005. The seeding is done by committee based on several criteria, one of which was statewide power rankings generated by a third-party website. In the Fall of 2018, that website ceased operation – it was the perfect opportunity for the MHSAA to develop its own data-driven, purely objective ratings system and incorporate that data into the seeding criteria,” said Cole Malatinsky, administrative assistant for the sport.
“The benefits of the new MPR system have been already mentioned – it is MHSAA controlled, simple, objective, and transparent, and it can be used by other MHSAA sports in the future.”
MPR is a computer rating formula similar to the popular RPI rating. MPR provides a way to measure a team’s strength relative to other teams, based on games played against other MHSAA tournament teams, largely on the strength of their opponents’ schedules. MPR is purely objective using only the game results listed on MHSAA.com – there is no subjective human element.
What is the basic MPR formula?
MPR is calculated using wins, losses and ties for games played between teams entered into the MHSAA tournament. The final MPR number is 25% of the team's winning percentage, plus 50% of its opponent's winning percentage, plus 25% of its opponent's opponent's winning percentage.
MPR = (.25 x W%) + (.50 x OW%) + (.25 x OOW%)
The MPR formula can be applied easily to other MHSAA team sports.
What game data is included in the formula? What game data is not?
MPR looks only at results between opponents entered into the MHSAA postseason tournament. Wins, losses and ties in multi-team shortened game tournaments (lacrosse, soccer) also count. Forfeits also are counted as wins and losses.
MPR does not use the specific scores of a game or the margin of victory in a game. The location of a game is not included in the MPR formula, and the formula weighs results at the beginning of the season the same as results at the end of the season. Scrimmages are not included.
Why use the MPR formula?
Different rating systems have been used in the past or have been recommended to the MHSAA. We wanted to have a rating system where the data was controlled and stored in house and could be used for any sport featuring head-to-head competitions.
With its own rating system the MHSAA also can control the different components of the formula, thus keeping the tenets of scholastic competition at the forefront (like not including margin of victory in the formula). Finally, by listing all scores and team schedules online, as well as showing the MPR calculator on each team schedule page, the ratings are transparent and can be replicated easily.
CALCULATING MPR
What are the detailed components of the MPR formula?
You need three numbers to calculate your MPR: winning percentage (W%), opponent’s winning percentage (OW%) and opponent’s opponent’s winning percentage (OOW%).
How do you calculate winning percentage (W%)?
Divide the number of wins by the number of total games played. A tie is worth half a win. For MPR purposes, find the winning percentage against all teams that will play in the MHSAA tournament (MPR W%). Games played against out-of-state teams, varsity “B” teams, junior varsity teams, non-school club teams, and any other non-MHSAA tournament participants should not be included when calculating winning percentage. W% should be an easy number to calculate.
How do you calculate opponent’s winning percentage (OW%)?
Average the winning percentages of a team's opponents. When calculating the winning percentage of a specific opponent, use the opponents "Adjusted Winning Percentage" (ADJ W%). Adjusted winning percentage eliminates all games the team played against that opponent (as well as its games against non-MHSAA opponents).
For instance, if the team beat an opponent with an overall record of 4-1, use a record of 4-0 (1.000) for that opponent. If the team lost to an opponent, use a record of 3-1 (.750). Find the ADJ W% for all opponents, and then take the average. If a team plays an opponent team twice, that opponent’s ADJ W% will be counted twice.
OW% is not calculated via the combined record of the opponents; instead take the average of all opponent’s winning percentages.
How do you calculate opponent’s opponent’s winning percentage (OOW%)?
Use the same process described above, except calculated for the opponents of a team's opponents. This number is much harder to manually calculate, so the OW% for every team is listed on the MPR page of the MHSAA website.
Again, simply take the average of all opponent’s OW%.
How often is MPR calculated?
MPR is calculated about every five minutes. Enter a score and a minutes later the team MPR and the MPR of all the team's opponents will update.
How much will my MPR change throughout the season?
You will see wild MPR swings in the beginning of the season, but after about 10 games played your MPR will start to level out. At 20 games played you will see very little movement with each additional game played.
My score is missing. How can it be added?
This is a crowd-sourced system. Any registered user of MHSAA.com can add a missing score. ADs, coaches, parents, students and fans all can login and enter a score for any game.
What are some common errors when calculating MPR?
When calculating your team’s winning percentage, only include games against MHSAA-tournament teams. When calculating your opponent’s winning percentage, don’t include the games they played against you. When calculating ties, count the game as a half-win and half-loss.
What happens if a game is cancelled?
Because the MPR system works off of averages, it will not make a difference in the final MPR if a game cannot be rescheduled. It would not penalize, nor benefit, any team involved in that scenario.
USING THE WEBSITE
Where can I find game scores?
A list of statewide scores for all sports can be found in the MHSAA Score Center. To find a schedule for any team click on “Schools & Schedules” in the top navigation bar, search for the school, then once on the school page click the sport. You can also see a list of all schools (with links to schedules), on the statewide MPR list.
“We continue to have great success in score reporting for varsity boys lacrosse contests. While we state that schedule submission and score reporting to MHSAA.com are required, athletic directors and coaches understand that in order for MPR data to be accurate, we need consistent and accurate score reporting,” said Malatinsky. “MHSAA.com is now the primary site for high school boys lacrosse schedules, results and ratings in the state.”
How should I use the statewide list of teams and MPR?
Linked to the boys soccer page (and eventually to be added for both basketball pages and girls soccer) is a statewide listing of all Michigan Power Ratings (MPR) for teams entered into the MHSAA postseason tournament for that sport. Linked on the MPR page is an explanation of the District draw formula, describing when and how teams will be placed on the bracket.
The MPR data updates every five minutes. Click on the column headings to sort the data. You also can use the drop-down menu to show teams in one Division, or type a District number in the box to filter teams for that District (Region for boys lacrosse).
You also can click on any school name to go to its schedule page.
How do I read the school schedule page?
The schedule at the top of the page shows the date and opponent for all scheduled games, and results for games already played. If results are missing, click “Submit Score” to add a game score.
Below the game schedule is the MPR Calculator. The calculator is split into three sections. The first section shows the three MPR component scores for the team, as well as the team’s current MPR score. The second section shows the MPR information for the team’s opponents – specifically, for the opponents the team already has played (actually, for games where scores have been submitted). Only these games are included in the MPR calculation.
The third section highlights future opponents. The MPR data for future opponents are not used in the MPR calculation for the team.
PHOTO: East Kentwood and Ann Arbor Skyline play for last season’s Division 1 boys soccer championship.
Breslin Bound: 2024-25 Girls Regional Preview
By
Geoff Kimmerly
MHSAA.com senior editor
March 10, 2025
The first week of this girls basketball postseason proved to be a notable rematch season as well – and some familiar opponents will face off again as we move into Regionals tonight.
Our top two "Week in Review" games below were reversals of regular-season series, and multiple brackets we preview also feature rematches from the regular season or the 2024 MHSAA Tournament.
Find everything you need to know this week about tickets, brackets and more as the tournament continues on the Girls Basketball page. To watch any of several games online, visit the NFHS Network, and see below for several of the intriguing matchups. Host sites are in bold.
“Breslin Bound” is powered by MI Student Aid and based on results and schedules posted for each school at MHSAA.com.
Week in Review
The countdown of last week’s five most intriguing results:
1. Gladstone 50, Negaunee 47 Gladstone (22-2) avenged its only two losses of the regular season, downing the Miners (22-1) in a Division 2 District Final after previously losing their matchups by 17 and 14.
2. Midland Dow 58, Midland 49 The Chargers (16-8) had finished tied for fifth in the Saginaw Valley League and fallen to Midland (19-4) by three and 15 during the regular season before providing this jolt to the rivalry in their Division 1 District Final.
3. South Lyon 55, Northville 47 The Lakes Valley Conference’s Lions (20-2) won a matchup of league champions in this Division 1 District Final, ending the season for the Kensington Lakes Activities Association West’s Mustangs (15-9).
4. Blissfield 57, Monroe St. Mary Catholic Central 42 The Royals (21-2) entered the postseason off a loss but finished a Division 3 District title run by handing St. Mary (22-2) just its second of the season.
5. Harbor Beach 44, Cass City 39 The Pirates (14-7) avenged a 15-point loss from Dec. 11 and also District losses from the last three seasons in edging the Red Hawks (21-3) in this Division 3 decider.
Regionals at a Glance
These could be among our most competitive brackets. Host sites are in bold:
DIVISION 1
Howell
South Lyon (20-2) vs. Hartland (19-5)
Dexter (18-6) vs. Belleville (23-1)
It would be easy to assume KLAA East co-champion Belleville is the favorite – and tough to argue as the Tigers play to reach Breslin for the second-straight season. But it’s also not that simple. As noted above, South Lyon also a league champion, and Hartland avenged a pair of losses to Howell (17-7) on Friday with a 10-point win to advance. Dexter finished second in the Southeastern Conference Red but has won 12 of its last 13, the only defeat during that time by one point to Chelsea (18-4). But bringing things back to Belleville, it’s only loss was to Wayne Memorial, avenged two weeks later, and only one other opponent has come within single digits of catching the Tigers this season.
Traverse City Central
Traverse City Central (16-6) vs. Midland Dow (16-8)
Saginaw Heritage (21-3) vs. Rockford (23-1)
The Big North Conference champion Trojans host coming off their 14th win over their last 15 games – including also defeating Midland in their regular season finale – and now get the surging Chargers who have won 10 straight. Heritage finished second to Midland in the SVL and also has won 10 straight and defeated Dow by 11 just before that streak began. All three will hope their momentum pays off as Rockford is bringing a 21-game winning streak into this week as it continues to pursue a fourth-straight trip to Breslin. The Rams have lost only to Ann Arbor Father Gabriel Richard (23-1) while playing one of the state’s strongest schedules.
Westland John Glenn
Farmington Hills Mercy (19-4) vs. Wayne Memorial (18-6)
Detroit Renaissance (21-2) vs. Bloomfield Hills Marian (10-15)
This bracket includes three league champions – Wayne sharing in the KLAA East, Renaissance from the Detroit Public School League Blue and Mercy from the Catholic High School League Central West. Those three also have not played each other this season but have common opponents, adding to the intrigue. Wayne has won 16 of its last 18, Mercy 14 of its last 15 and Renaissance’s defeats both came to opponents with at least 19 wins. Marian is a great story too, emerging from fifth in the CHSL Central West to build a run of seven wins over its last 10 games, and with nine of its losses to teams that won at least 14 games during the regular season.
DIVISION 2
Grand Rapids South Christian
Paw Paw (20-4) vs. Grand Rapids South Christian (22-2)
Edwardsburg (15-9) vs. Vicksburg (22-2)
The Wolverine Conference has shown its power this postseason with champion Vicksburg, runner-up Paw Paw and fourth-place Edwardsburg claiming District titles last week. Vicksburg’s lone defeat was 50-47 to Paw Paw on Jan. 31 after defeating the Red Wolves 66-65 on Dec. 6, and a third meeting between them no doubt would be a gem. Edwardsburg did take a win from Paw Paw as well, on Jan. 15, and fell to Vicksburg only 33-29 in their second meeting Feb. 21. South Christian, meanwhile, shared the Ottawa-Kent Conference Gold title with Grand Rapids West Catholic (20-3), with the Sailors’ only other loss this season by two in December to Hudsonville (17-7) – which won a District title in Division 1.
Pinckney
Goodrich (21-3) vs. Eaton Rapids (13-10)
Haslett (21-3) vs. Chelsea (18-4)
Goodrich and Chelsea are coming off especially notable District Final wins, Goodrich over Flint Powers Catholic (18-6) and Chelsea over Parma Western (21-3) – and they won those games by 16 and 17 points, respectively. Goodrich’s defeats all came to teams with at least 18 wins, and Chelsea’s to opponents with at least 16 victories. Haslett defeated a familiar opponent in rival Williamston but, like Goodrich and Chelsea, has played several top teams over the course of the winter with a win over Detroit Country Day (18-5) and losses to three 20-win opponents. Eaton Rapids is bringing some juice as well with 10 wins over its last 14 games and some good losses along the way.
Tecumseh
Carleton Airport (17-7) vs. Tecumseh (22-1)
Romulus (15-5) vs. Ann Arbor Father Gabriel Richard (23-1)
This Regional includes two of the top contenders in Division 2 overall, as they played the second and fourth-strongest schedules during the regular season and still have just one loss apiece. Tecumseh defeated Airport 76-44 in both teams’ regular-season finale, but Airport has won 15 over its last 18 overall. The Jets were runners-up in the Huron League, and Romulus was runner-up in the Western Wayne Athletic Conference and has won 12 of its last 14. Father Gabriel Richard finished Division 2 runner-up last season after defeating Tecumseh in a Quarterfinal.
DIVISION 3
Grandville Calvin Christian
Grandville Calvin Christian (18-6) vs. Kent City (19-5)
Pewamo-Westphalia (24-0) vs. Saugatuck (23-1)
All four of these teams added District titles to league championships this season. Pewamo-Westphalia has prepped for its run by winning the Central Michigan Athletic Conference – which had three more winners of at least 17 games – and also defeated Flint Powers (see above) and New Lothrop (noted below). Saugatuck lost only to Lawton (15-6) in its first game of 2025 and owns an 11-point win over Kalamazoo Christian (also noted below), while annual contender Kent City has won 12 of its last 14 games and Calvin Christian bounced back from an 0-3 start to the season and two losses heading into the playoffs – avenging the second of those with a 45-42 win over Muskegon Western Michigan Christian in their District Final.
Niles Brandywine
Watervliet (11-13) vs. Kalamazoo Christian (20-4)
Niles Brandywine (14-0) vs. Bronson (22-2)
Reigning Division 3 runner-up Brandywine headlines a powerful field and defeated Bronson 69-37 on Jan. 14. The Bobcats’ closest game was eight points, and the rest of their wins were by double digits. Bronson hasn’t lost since – it’s only other defeat by three to Concord (19-4) – as it went on to share the Big 8 Conference title and build a 17-game winning streak. Kalamazoo Christian made it through a third matchup with rival Hackett Catholic Prep, winning the District Final 53-38 after those two split regular-season meetings, and the Comets’ other three losses were to Division 2 or 3 teams that won their Districts. Watervliet started this season 1-6 but has bounced back significantly and has six wins over its last seven games.
Springport
New Lothrop (21-3) vs. Hemlock (21-3)
Leslie (18-6) vs. Jackson Lumen Christi (17-6)
New Lothrop and Hemlock will face off in a meeting of league champions, Hemlock from the Tri-Valley Conference Blue and New Lothrop after sharing the Mid-Michigan Activities Conference title. New Lothrop’s losses this season were by a combined 11 points and all of its wins this calendar year have come by double digits. All 21 of Hemlock’s wins were by 10 or more points, with its losses to three Division 1 and 2 teams that are still playing as well. On the other side of the bracket, Leslie has emerged after finishing third in a strong Cascades Conference East, and Lumen the same from a tough CHSL Central East. Lumen defeated Cascades East champ Grass Lake (19-4) in their District Final, 59-52.
DIVISION 4
Marlette
Genesee Christian (21-2) vs. Waterford Our Lady of the Lakes (15-6)
Kingston (20-2) vs. Ubly (9-14)
Kingston finished Division 4 runner-up a year ago and loaded up to prep for another run losing only to Division 1 Saginaw Heritage (see above) and Division 2 Imlay City. The Cardinals interestingly have a 42-38 win over Ubly from Feb. 3, and the Bearcats stunned in downing Deckerville (18-6) to clinch a District title. Genesee Christian also has played several larger opponents this season, losing only to Division 2 Flint Hamady (20-1) and Adrian Lenawee Christian (12-11). The Soldiers advanced with a District Final win over Clarkston Everest Collegiate (18-3), a common opponent with Our Lady, which won its first District title since 2021 and is enjoying its winningest season since 2019-20.
McBain
Gaylord St. Mary (20-3) vs. Mio (18-5)
Buckley (17-7) vs. Frankfort (16-6)
This bracket also includes three league champions plus three repeats from a year ago. Start with Frankfort, which won the Northwest Conference but faces fourth-place Buckley for the third time after losing their first meeting by one point but winning the rematch Jan. 31 by 13. The Panthers have won 11 of their last 13 games, and Buckley has won nine of its last 11. St. Mary won the Ski Valley Conference just ahead of another 20-win District champ in Indian River Inland Lakes but faces a unique but familiar challenge in Mio. The Thunderbolts won the North Star League Little Dipper title and feature Mia McGregor, who averaged 41 points per game last season as a freshman, but St. Mary did win their Regional matchup last year 61-54 before falling to Frankfort 64-37 in the Regional Final.
Mount Pleasant Sacred Heart
Mount Pleasant Sacred Heart (20-0) vs. Onekama (20-4)
Saginaw Michigan Lutheran Seminary (18-6) vs. Fowler (22-2)
Fowler reached the Division 4 Semifinals last season, and its only losses this winter were to Division 3 Pewamo-Westphalia (see above) – with a recent win over Division 1 Holt (17-7) another reminder of the Eagles’ potential. Sacred Heart’s undefeated run came in part against a Mid-State Activities Conference that produced four more teams with 13 or more wins, and Onekama finished second in a Northwest Conference that produced three District champs. MLS finished second in the TVC Blue to Hemlock (see above) and has wins over the second and third-place teams from the MSAC – St. Charles and Merrill, respectively – with four losses to teams that have won 21 games.
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PHOTOS (Top) Gladstone players including Lillie Johnson (21) and coaches celebrate their Division 2 District Final win over Negaunee on Friday. (Middle) DeWitt’s Golden Nicholson (24) drives to the basket with Lundyn Elam (4) defending during the Panthers’ 55-35 District title win over East Lansing in Division 1. (Gladstone/Negaunee photo by Cara Kamps. DeWitt/East Lansing photo by Terry Lyons.)