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 Quarterfinal Preview
By
Geoff Kimmerly
MHSAA.com senior editor
March 18, 2025
We always try to celebrate the rare or unique when it comes to MHSAA Tournament success, and we welcome two first-time Regional champions and a few more first-time-in-a-long-time contenders who have advanced to tonight’s Girls Basketball Quarterfinals.
But you’re right on if this field also looks a little familiar.
Of 32 teams competing to reach Breslin Center this time, 16 also played in Quarterfinals in 2024. Of those 16, 10 advanced to last year’s Semifinals – so there is plenty of championship week experience to go around as we look at tonight’s matchups below.
“Breslin Bound” is powered by MI Student Aid and based on results and schedules posted for each school at MHSAA.com. (Abbreviations below denote ppg - points per game, rpg - rebounds per game, apg - assists per game, spg - steals per game, and bpg - blocks per game.)
Week in Review
The countdown of last week’s five most intriguing results:
1. Tecumseh 50, Ann Arbor Father Gabriel Richard 39 In this Regional Final, Tecumseh (24-1) avenged last season’s five-point Quarterfinal loss to FGR (24-2), which went on to finish Division 2 runner-up.
2. Grandville Calvin Christian 39, Pewamo-Westphalia 36 Calvin (20-6) clinched a Division 3 Regional championship by handing the Pirates (25-1) their lone loss of the winter.
3. Goodrich 58, Haslett 56 The Martians (23-3) claimed a Division 2 Regional title with their closest win of the season; the Vikings finished 22-4.
4. Fowler 57, Mount Pleasant Sacred Heart 36 The Eagles advanced to this week in Division 4 by dealing Sacred Heart (21-1) its only defeat.
5. Genesee Christian 45, Kingston 40 The Soldiers (23-2) moved on to championship week by edging a Kingston team that ended 21-3 coming off last year’s Division 4 runner-up finish.
Quarterfinals at a Glance
DIVISION 1
DeWitt (25-1) vs. Belleville (25-1) at Holt
Belleville is seeking a second-straight trip to the Semifinals and is led again by sophomore guard Sydney Savoury (26.1 ppg, 3.0 apg, 4.2 spg) and junior guard Se’Crette Carter (19.3 ppg). But the Panthers can counter with a pair of 1,000-point career scorers in senior guards Tara Kurncz (13.4 ppg) and Madi Uyl (12.2 ppg, 2.4 apg), the former having become the program’s all-time leading scorer last month. Both teams avenged their lone defeats.
West Bloomfield (18-8) vs. Utica Ford at University of Detroit Mercy, 7:30 p.m.
The reigning Division 1 champion Lakers graduated four starters from last season’s team, but the new crew has won 15 of its last 18 games led by that lone returning starter, junior guard Sheridan Beal (16 ppg, 54 3-pointers). Ford has taken a strong step this season, winning its first Regional title since 1984. Senior guard Anayya Davis leads with 21.2 points, 7.1 rebounds, 4.1 assists and just over a block per game.
Wayne Memorial (20-6) vs. Temperance Bedford (24-2) at University of Detroit Mercy, 5:30 p.m.
Wayne is the lone team to defeat Belleville this season, splitting with the Tigers to share the Kensington Lakes Activities Association East title. Junior Mariah Cross (19.4 ppg) and senior Colleena Bryant (17.2 ppg) make up a high-scoring backcourt, and Bryant was a Miss Basketball Award finalist. Bedford is returning to the Quarterfinals for the second-straight season and with plenty of power in the post. Senior forward Victoria Gray sets the pace at 20.6 points, 15 rebounds and 2.6 blocks per game.
Rockford (25-1) vs. Grand Haven (22-3) at Muskegon Mona Shores
Senior forward Anna Wypych (21.8 ppg, 85 3-pointers) was named Miss Basketball on Monday, and tonight she’ll attempt to lead the Rams to back to Breslin with a third win over Grand Haven this season after Rockford won the first two meetings by 12 and 11 points. The Buccaneers are making their first Quarterfinal appearance since winning the Class A championship in 2013, and their only other defeat this winter was to Hudsonville.
DIVISION 2
Gladstone (24-2) vs. Frankenmuth (22-4) at Cheboygan
Gladstone is making its first Quarterfinal appearance since 2012 having avenged its only losses with a District Final win over Negaunee. Junior guard Lillie Johnson has made her name known statewide, averaging 22.4 points, 12.1 rebounds and 3.6 steals per game. Frankenmuth has reached at least the Quarterfinals three of senior Clare Conzelmann’s four seasons and avenged its two losses to Division 2 opponents this winter in winning last week’s Regional.
Goodrich (23-3) vs. Tecumseh (24-1) at Northville
All three of Goodrich’s losses came to opponents that reached at least Regional Finals, and the Martians follow a pair of playmakers in junior guard Kayla Hairston (12 ppg, 3.6 apg) and sophomore guard Baylor Lauinger (11.3, 4.4). Tecumseh’s only defeat came to Rockford two months ago on the way to reaching the Quarterfinals for the second-straight season. Senior 6-foot-2 forward Alli Zajac (14.3 ppg, 6.1 rpg) and sister 6-0 sophomore center Addi Zajac (13.8 ppg, 8.8 rpg, 1.1 bpg) combine to give their team a powerful post presence, and Alli was a Miss Basketball finalist.
Grand Rapids West Catholic (22-3) vs. Grand Rapids South Christin (24-2) at Hudsonville Unity Christian
These Ottawa-Kent Conference Gold co-champions split their regular season meetings, West Catholic winning the first by 13 points and South Christian taking the rematch by seven. West Catholic was the Division 2 runner-up in 2022 and reached the Semifinals the last two seasons, and senior guard Elisha Dykstra (10.6 ppg, 5.3 rpg, 4.2 apg) has started all four years. South Christian will attempt to reach Finals weekend for the first time since 2016 led by junior guard Sophia Prins (14.3 ppg, 4.1 apg, 3.2 spg).
Detroit Edison (18-6) vs. Detroit Country Day (20-5) at St. Clair County Community College
Edison is playing for a second-straight Division 2 title and third over the last four seasons, and with three of its losses this winter to teams still playing. Senior Isis Johnson-Musah (17.3 ppg, 6.9 rpg, 3.9 apg, 3.7 spg) was another Miss Basketball Award finalist and the team’s leading scorer in last year’s championship win. Country Day is seeking to return to the Semifinals for the second time in four seasons and keyed in part by high-scoring guards junior Jayla Jackson (19.6 ppg) and sophomore Cece Arico (16.5).
DIVISION 3
Calumet (21-5) vs. Sanford Meridian (23-3) at Manistique
The Copper Kings have jumped from 11-12 a year ago to reach the Quarterfinals for the second time in five seasons, and downed reigning Division 4 champion Ishpeming in the District Final. Guard Jackie Kiilunun is the lone senior starter and lead scorer at 14 ppg. After falling a win shy last season, Meridian won its first Regional title last week and also follows a talented senior guard in Halen McLaughlin (28 ppg, 77 3-pointers, 8.4 rpg, 3.4 apg, 4.5 spg).
Rochester Hills Lutheran Northwest (19-6) vs. Sandusky (24-2) at West Bloomfield, 6 p.m.
Northwest won this same matchup last season 38-16 to reach the Semifinals and has four starters back from that team, with junior forward Addie Troska moving up from super sub last winter and becoming the fifth starter and leading scorer (10.2 ppg). Sandusky has won three straight Regional titles and is seeking to return to the Semifinals for the first time since 1999. Sophomore guard Caroline Reinke fills the stat sheet at 10 points, 7.2 rebounds, four assists and 5.8 steals per game.
Jackson Lumen Christi (19-6) vs. Ypsilanti Arbor Prep (14-12) at Dansville
Lumen Christi has reached its first Quarterfinal since 1988 by defeating three straight opponents that finished with at least 18 wins this season. Center Kathleen Doane is the lone senior. Reigning Division 3 champ Arbor Prep has navigated injury and inexperience to stack up seven straight wins. Senior guard Eliza Bush is the lone returning starter from last year’s team, although junior guard Angela Meggisson was a top sub and starts now.
Grandville Calvin Christian (20-6) vs. Niles Brandywine (26-0) at Kalamazoo Loy Norrix
After heading into the postseason with two straight losses, Calvin has won three straight games by three points or fewer including handing Pewamo-Westphalia its only loss, in the Regional Final. Junior forward Addyson Rhodes (13.6 ppg) and junior guard Leila Nelson (13.3) set the scoring pace. Next up is reigning Division 3 runner-up Brandywine, which is a combined 52-2 over the last two seasons and has six players scoring at least five points per game led by senior Adeline Gill (12.5 ppg).
DIVISION 4
Ewen-Trout Creek (25-1) vs. St. Ignace (25-1) at Gladstone
A loss to Division 2 Negaunee is all that’s kept Ewen-Trout Creek from a perfect season, and this will be the Panthers’ first Quarterfinal since 2005. Freshman guard Bree Besonen (16.9 ppg, 4.5 apg) and junior center Irelyn McGeshick (16.5 ppg, 10.2 rpg) lead a team with no seniors and only three juniors among eight players total. St. Ignace’s lone defeat came to Division 2 Sault Ste. Marie, and the Saints are pursuing their first Semifinal trip since 2019 with guard Jillian Fraser (17 ppg, 6.2 apg) and center Addison Cullen (16.8 ppg, 11.2 rpg) two of only three seniors of their roster.
Byron Center Zion Christian (20-6) vs. Concord (21-4) at Battle Creek Harper Creek
Zion has won 16 of its last 18 games to emerge from third in the Alliance League and claim its first Regional title. Junior forward Audra Kaptein (13 ppg) and junior guard Jayda Steenbergen (12.2 ppg, 5.9 apg, 4.4 spg) lead a lineup with only one senior starter. Concord has won 10 of its last 11 games to reach the Quarterfinals for the second time and first since 2012. Senior Grace Thorrez, at 6-2, is strong in the post with 14.1 points and 3.8 rebounds per game, and sophomore guard Bradie Lehman (13.7 ppg, 4.2 apg, 4.5 spg) provides balance in the backcourt.
Frankfort (18-6) vs. Fowler (24-2) at Cadillac
Frankfort is seeking to reach the Semifinals for the second-straight season and after an 0-3 start and two losses over its final three games heading into the playoffs. They’ve bounced back again, with lone senior Savina Anhalt (12.1 ppg, 7.1 rpg) combining with junior Addie Jarosz (13.5 ppg, 9.5 rpg) to form a solid frontcourt duo. Fowler has reached five straight Semifinals (not counting 2020, when the season ended prior to that round), and three starters are back from last year’s run led by senior guard Katie Spicer (12.5 ppg, 4.5 apg).
Morenci (24-1) vs. Genesee Christian (23-2) at Brighton
A one-point overtime loss is all that’s kept Morenci from a perfect run as the Bulldogs return to the Quarterfinals seeking their first Semifinal trip since 2011. Junior guard Emersyn Bachelder (15.6 ppg) is again the leading scorer, upping her average more than five points from a year ago. Genesee Christian has emerged from 14-10 last winter to reach the Quarterfinals for the second time in four seasons, this time with lone senior starter Haven Chapman (20.7 ppg, 8.9 rpg, 3.8 apg, 4.2 spg, 1.3 bpg) setting the pace.
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PHOTOS (Top) Ewen-Trout Creek coach Jacky Besonen presents the Division 4 Regional trophy to her team after last week's win over Norway. (Middle) Fowler's Paige Thelen (10) drives to the basket during her team's Regional clincher over Mount Pleasant Sacred Heart. (E-TC photo by Cara Kamps. Fowler/Sacred Heart photo by Kolleth Photo.)