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 District Preview
By
Geoff Kimmerly
MHSAA.com senior editor
March 3, 2025
Nearly 700 Michigan girls basketball teams will begin their quests this week to finish as one of four holding up championship trophies three weeks from now at Michigan State University.
We always switch up our “Breslin Bound” format once the MHSAA Tournament starts, as last week’s most intriguing results below are followed this time by glances at three District brackets of note in each division. Host sites are bolded, and teams playing in those brackets are listed by seed as determined by Michigan Power Ratings (MPR).
Everything you could want to know this week about tickets, brackets and more can be found on the Girls Basketball page. To watch any of several games online, visit the NFHS Network.
“Breslin Bound” is powered by MI Student Aid 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. Farmington Hills Mercy 61, Detroit Edison 58 This win over the reigning Division 2 champion Pioneers (14-6) combined with a Thursday win over Detroit University Prep sent Mercy (17-4) from No. 15 to No. 6 in final Division 1 MPR.
2. Negaunee 58, Gladstone 44 The Miners (21-0) completed a perfect regular season, and Gladstone finished 20-2 with its only losses to Negaunee.
3. Jackson Lumen Christi 59, Monroe St. Mary Catholic Central 53 The Titans (15-6) handed the Kestrels (21-1) their lone defeat of the regular season.
4. Belleville 70, Northville 48 Bellville (21-1) repeated as overall Kensington Lakes Activities Association champion, following up on its shared title in the East by downing West winner Northville (14-8).
5. Freeland 51, Midland 49 (OT) The co-champion of the Tri-Valley Conference Red, Freeland (19-3) earned another boost into the postseason by downing Saginaw Valley League winner Midland (18-3).
Districts at a Glance
These could be among our most competitive brackets. Host sites are in bold, and teams are listed by seed:
DIVISION 1
Hartland
1. Howell (16-6), 2. Hartland (17-5), 3. Brighton (12-10), 4. Milford (13-9), 5. Fenton (12-10).
It wouldn’t be a stretch to see any of these teams shake up the bracket. Howell finished second in the KLAA West and Hartland third, and Brighton fifth, and Hartland actually moved past Howell in MPR after seeding with wins last week over White Lake Lakeland and Livonia Stevenson. Howell did sweep Hartland during the regular season; Hartland split with Brighton, and Howell swept Brighton. Milford finished fifth in the Lakes Valley Conference but defeated Midland Dow early, LVC co-champion Lakeland in their second meeting and lost a pair to the other co-champ South Lyon by a combined seven points. Fenton finished third in the Flint Metro League Stripes.
Midland Dow
1. Midland (18-3), 2. Midland Dow (14-8), 3. Mount Pleasant (15-6), 4. Cadillac (15-6), 5. Bay City Western (11-11).
SVL champion Midland tops a bracket that also includes league rivals Mount Pleasant (tied for third), Dow (tied for fifth) and Western (tied for seventh) – and the Chemics defeated possible Friday opponents Dow by three and 15 and the Oilers by eight during the regular season. Cadillac was the runner-up in the Big North Conference and had won nine straight – including a 43-40 victory last week over Mount Pleasant – before falling to Bay City Western 37-26 on Thursday. Those two open against each other tonight.
West Bloomfield
1. Orchard Lake St. Mary’s (17-4), 2. West Bloomfield (14-8), 3. White Lake Lakeland (16-6), 4. Walled Lake Northern (14-8), 5. Walled Lake Central (1-21).
Reigning Division 1 champion West Bloomfield fell off the radar a bit early with a 1-4 start, but is 11-3 over the last seven weeks and finished second in the Oakland Activities Association Red – and defeated champion Clarkston 44-43 last week to avenge an earlier 48-41 loss. All of the Lakers’ losses came against opponents that have won at least 14 games. St. Mary’s shared the Catholic High School League Central West title with Mercy, and its four losses were to opponents that have all won at least 16 games. Lakeland was co-champion in the LVC and Northern finished fourth, and Lakeland’s losses also came against a tough slate as well, as all of those opponents were at least 12-game winners.
DIVISION 2
Chelsea
1. Chelsea (16-4), 2. Parma Western (20-2), 3. Michigan Center (19-2), 4. Brooklyn Columbia Central (11-10), 5. Pinckney (14-8).
Western and Columbia Central are league champions, Chelsea and Michigan Center league runners-up, and Pinckney third from a strong Southeastern Conference White that included Chelsea and one of the overall Division 2 favorites in Tecumseh. Western actually moved past Chelsea in MPR after seeding, with its only losses to league champions Belleville and Grass Lake and a win over another title winner Haslett last week plus Edison on Jan. 23. Chelsea’s losses were to Edison on Thursday, Tecumseh twice and another overall favorite in Ann Arbor Father Gabriel Richard. Michigan Center’s only defeats were twice to Grass Lake.
Escanaba or Higher Seed (non-traditional)
1. Negaunee (21-0), 2. Gladstone (20-2), 3. Houghton (13-9), 4. Escanaba (9-12), 5. Kingsford (10-11).
The Miners reached the Division 2 Semifinals last season and have won District titles the last three seasons. And as noted above, Negaunee defeated Gladstone last week for the second time, and both of Gladstone’s losses were to Negaunee. There’s a strong argument they are the best teams in the Upper Peninsula this season, and they could meet for a third time Friday. But don’t forget Houghton, which had a bumpy February but started this season 12-3 and lost to Gladstone only 39-36 on Dec. 19. Those two will meet again in a District Semifinal.
Fremont
1. Big Rapids (19-2), 2. Fremont (20-2), 3. Newaygo (18-4), 4. Ludington (16-5), 5. Reed City (9-12).
This bracket includes two teams that have reached Breslin over the last four years – 2021 Division 2 runner-up Newaygo and 2022 semifinalist Ludington among an overall strong group. Big Rapids was the undefeated champion in the Central State Activities Association Red, with pairs of double-digit wins over second-place Newaygo and third-place Reed City. Fremont was first and Ludington second in the West Michigan Conference Lakes, with Fremont taking both of their matchups also by double digits. The Packers have won 12 straight games to reach 20 for the second-straight season, while Big Rapids can reach 20 victories for the second time in three seasons with a win Wednesday.
DIVISION 3
Blissfield
1. Monroe St. Mary Catholic Central (21-1), 2. Blissfield (19-2), 3. Ottawa Lake Whiteford (14-8), 4. Erie Mason (7-15), 5. Sand Creek (3-19).
St. Mary’s only loss, discussed above, came last week to Lumen Christi, and the Kestrels finished first in a Huron league that included five teams (of eight) with winning records overall. Among early victories was a 28-pointer over Ottawa Lake Whiteford, which tied for second in the Tri-County Conference. Those two could meet again, but only if Whiteford gets through Blissfield, which won the Lenawee County Athletic Association title with losses only to TCC champ Morenci on Thursday and Tecumseh on Dec. 18. Blissfield has defeated SMCC in District play the last three seasons, including in District Finals the last two.
Galesburg-Augusta
1. Kalamazoo Hackett Catholic Prep (19-3), 2. Kalamazoo Christian (18-4), 3. Lawton (15-5), 4. Galesburg-Augusta (14-7), 5. Comstock (1-20).
Hackett and Christian played to one of the most intriguing splits this season, Christian winning the first game 52-35, Hackett the rematch 56-55, but Christian winning the Southwestern Athletic Conference Valley title by two games ahead of the Irish. Hackett’s loss to Parchment on Feb. 21 was its only defeat since Dec. 13, and Christian sharpened for the postseason with losses to Edison, Saugatuck and Paw Paw as well and a nice win last week over Ottawa-Kent Conference Silver champ Grandville Calvin Christian. Lawton finished third in the Valley, but its only non-Hackett/Christian defeat came to reigning Division 3 champion Niles Brandywine. Galesburg-Augusta was the runner-up in the SAC Central and will play on its homecourt.
Grass Lake
1. Grass Lake (18-3), 2. Jackson Lumen Christi (15-6), 3. Hanover-Horton (12-9), 4. East Jackson (14-8), 5. Napoleon (8-14).
Lumen’s win last week over Monroe St. Mary made a bracket full of surging teams even more interesting. Cascades Conference East champion Grass Lake has won 15 straight games since it’s most recent loss – Jan. 4 to Lumen Christi, 66-56. The Warriors rebounded with wins over Michigan Center and Detroit Renaissance and have rolled since. The Titans are riding an impressive five-game stretch that included a win as well over Columbia Central and with that loss to Tecumseh. Hanover-Horton was second in the Cascades West and has seven wins over its last nine games, and East Jackson – 5-17 just a season ago – has won six of its last seven with only a loss to Grass Lake during that string.
DIVISION 4
Dryden
1. Clarkston Everest Collegiate (17-2), 2. Genesee Christian (19-2), 3. Dryden (12-10), 4. Burton St. Thomas More Academy (9-9).
Everest won the CHSL Intersectional 1 and St. Anne’s Tournament championships, with its only losses to Division 2 Warren Regina and Wixom St. Catherine. But Genesee will provide a high-powered challenge, as the Soldiers are capable of putting up big numbers and have lost only to Division 2 Flint Hamady and Adrian Lenawee Christian. Dryden emerges from the Big Thumb Conference Blue, where it finished third and didn’t lose a game all season to an opponent that finished with fewer than 12 wins, taking on Sandusky and Brown City over the last two weeks.
Frankfort
1. Frankfort (14-6), 2. Leland (16-5), 3. Lake Leelanau St. Mary (14-6), 4. Grand Traverse Academy (14-7), 5. Suttons Bay (2-19), 6. Traverse City Christian (4-13).
Frankfort enters the postseason with two losses over its last three games, but got one that counted big-time as last week’s 18-11 win over Leland solidified an outright championship in the Northwest Conference. Frankfort also won their first meeting 33-26 on Jan. 29, but the Comets emerged from a tough run over the last three weeks to still finish third in the league. Lake Leelanau St. Mary could break up a potential third meeting between those two, having defeated Leland 31-26 on Jan. 14 and tested itself in losses to 20-game winners Evart and St. Ignace over the last two weeks. Grand Traverse has bounced back from a rough February stretch with three straight wins.
L’Anse or Higher Seed (non-traditional)
1. L’Anse (17-5), 2. Baraga (16-6), 3. Hancock (14-8), 4. Lake Linden-Hubbell (16-6), 5. Dollar Bay (8-14), 6. Chassell (4-18).
The second, third and fourth-place teams from the Copper Mountain Conference will contend in this bracket, and Hancock was the runner-up in the Western Peninsula Athletic Conference West. L’Anse finished fourth in the CMC but has the top seed and a recent 14-point win over Hancock but also lost to Lake Linden-Hubbell last week 54-50. LL-H has jumped past CMC runner-up Baraga and Hancock in MPR since seeding but took an 11-point loss to Hancock on Feb. 13 to go with a split with Baraga and a sweep of L’Anse. Baraga was the Division 4 runner-up just two seasons ago and fell to eventual champion Ishpeming during last year’s District. The Vikings have won 10 of their last 12 games, with the pair of losses during that run by a combined six points.
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PHOTOS (Top) West Bloomfield defenders close in on Tecumseh’s Lauren Kilbarger (12) during her team’s win over the Lakers in December. (Middle) Houghton's Eva Gerard gets a hand up as Ishpeming Peyton Kakkuri take a shot during the Hematites’ 61-49 win Thursday. (West Bloomfield/Tecumseh photo by Team Arreguin Photos. Houghton/Ishpeming photo by Cara Kamps.