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.
Energy, Competition, Moments & More Continue to Spark Unity Coach Soodsma
By
Steve Vedder
Special for MHSAA.com
February 15, 2023
HUDSONVILLE – The pep band is blaring the school fight song, the boisterous crowd of a couple of thousand fans has long grown weary waiting for the opening tip-off, and the antsy players are crowded behind the locker room doors ready to spring like a pack of lions.
It's like the scene from the epic basketball movie "Hoosiers" where coach Norman Dale pauses before entering a rollicking and packed Friday night gymnasium to mutter to himself, "Welcome to Indiana basketball."
Scott Soodsma not only grasps the significance of that scene firsthand, it's why after four decades he still loves coaching.
"The fierce competition, the band, your heart pounding like a dog – it's still like it was 30 years ago," said Soodsma, the Hudsonville Unity Christian coach and dean of West Michigan basketball coaches in his 41st season of a run that’s included two states and three schools.
"How does it get any better than that? I'm always telling the kids to live for the moment. You can't replace all that; I still get the shivers. I've had so many moments like that."
Among those highlight moments are being one of just two Michigan coaches to win both girls and boys MHSAA Finals championships (Paul Cook of Lansing Eastern was the other), and the moment he claims is easily No. 1 on his all-time personal list: coaching his daughter Amber as part of the 2006 Class B champ. Unity Christian also won a 2019 boys state title. He also won a third Finals championship with the boys at McBain Northern Michigan Christian.
Soodsma, 63, admits there have been myriad changes in coaching basketball since his first season at North Dakota's James Valley Christian High School in 1983 and coming to Unity Christian in 1993. For starters, players are bigger and stronger and are more schooled in the game through AAU and offseason programs. In addition, the influence of parents – for better or worse – has increased dramatically. As for the on-court game, Soodsma unabashedly admits he at first fought the institution of the 3-point shot. And the emphasis on winning has definitely only increased pressure on many coaches.
Soodsma, a member of the Basketball Coaches Association of Michigan Hall of Fame who ranks ninth on the state's all-time boys wins list with 635, said he's adapted to the times. He wants to win as much as he ever has, still broods for days after losses and still considers himself receptive to the changing Xs and Os aspect of coaching.
But where his booming voice routinely used to resonate loudly into the middle sections of the Unity Christian bleachers, most of those comments now are only audible to fans perched in the first couple rows of the stands. Which is probably a good thing, Soodsma adds sheepishly.
Coaching, he readily contends, is still coaching – and winning still heads the list of priorities. He does add one disclaimer, however, in terms of winning. Whereas it used to be about a young coach building a resume through wins, it's now about what winning can do for today's teenager athlete. An old-school coach? Yeah, probably. But one who has learned much about himself, players and parents after 41 years.
"I've learned to enjoy the kids more; I'm definitely a different kind of person in the ’90s as opposed to now in the 2000s," he said. "I am a stubborn man, and it took a long time (to change). But winning? Oh, yeah. I've never backed down. The winning and losing hasn't changed, and I make no excuses that I still want to win."
Which is then strange, perhaps, that he doesn't list being just one of two coaches to win Finals titles in both girls and boys basketball as the zenith of coaching for 41 seasons. That honor goes to having his daughter, who went on to a stellar career at Dort College, on the state championship club.
"It's not that big of a deal," he said of being on the bench for what likely will never happen again as boys and girls basketball are now in the same season. "To me it's not an accomplishment I would rank (at the top). I'm just being honest. Winning a state title with Amber, and the picture I have of her and me in my office, that's the best."
How well has Soodsma adapted his coaching style over the years? Two people in a position to know offer their own opinions on the topic, including 22-year assistant Bruce Capel and Randy Oosterheert, who with son Rylan are the only father/son combination that Soodsma has coached.
"Scott has always been vocal on the sidelines as a coach. As I sit in the stands and watch as a spectator, same Scott," said Randy Oosterheert who played for Soodsma in 1992-93 and 1993-94 and whose son is a current Unity Christian player. "I will say that my son and I agree, if you do something wrong on the floor, he is the first person to greet you on the sidelines and point out your failure. However, if you do good, he is the first person to greet you on the sidelines and tell you good job.
"The latter is done at a little lower decibel level than the offense, and those with a watchful eye from up in the stands unfortunately (don’t) get to hear the praise, only the punishment. Scott is obviously very competitive, then and now. He expects a lot but gives a lot."
As far as the competitive side, Capel hasn’t seen much of a difference over their two decades together.
"Certainly, coaching is a lot different in how you approach kids from more than 20 years ago," he said. "There's a difference in society and you have to change with it, and he's done that. I don't think it's as much life and death with Scott anymore. But in terms of winning, I haven't seen that go away."
It's a coin flip as for how much longer Soodsma will be directing traffic from the sidelines. He broke into the top 10 among the all-time winningest boys coaches in Michigan history by passing Warren De La Salle's Bernie Holowicki and Ray Lauwers of Morley Stanwood last season. Next on the list is Big Rapids' Kent Ingles (644). When you factor in Soodsma's win total as both boys and girls coach, the 742-and-counting combined wins rank eighth in state history.
He does admit the desire to spend more time with wife Mary, the longtime away scorekeeper for the program, and 11 grandkids scattered from Denver to Seattle to San Diego. Retirement could strike when this season ends in March, or it could still be several Marches away. But when the end comes he anticipates making a contented transition from arguing with officials, coming to an "understanding" with parents and devising new Xs and Os. Soon, he mused, will come time for much-anticipated passions such as hunting, fishing and pickleball.
"For the first time I've contemplated it," he said. "There are a lot of things I'd like to do. I'm not a basketball junkie."
That may be true. But it'll still be tough to surrender those noisy pep bands, bright gymnasium lights and the din of Friday night crowds.
PHOTOS (Top) Hudsonville Unity Christian boys basketball coach Scott Soodsma stands in front of a portion of the school’s trophy case, which he’s helped fill over decades coaching basketball. (Middle) Soodsma and daughter Amber embrace during their team’s 2006 Class B Final victory. (Top photo by Steve Vedder. Middle photo courtesy of the Soodsma family.)