Defense Key to Sailors' Title Defense
September 21, 2016
By Dean Holzwarth
Special for Second Half
GRAND RAPIDS – Goalkeeping and defense were catalysts in last year’s MHSAA Division 3 championship run for the Grand Rapids South Christian boys soccer team.
As the Sailors attempt to replicate last year’s success, those two elements remain vital in their quest for back-to-back titles.
South Christian, top-ranked in Division 3 this week, has had to fill huge holes after the departures of all-state goalie Carter Selvius and all-state Dream Team defender Austin Clark.
“Our defense is really what we’re working on right now, knowing the guys I lost,” Sailors coach Jason Boersma said. “We lost our goalie and two real keys to our defense. It doesn’t automatically get replaced overnight having new players coming in.
“We’re working hard at figuring out what the best line-up is. We’re doing well, and we haven’t had a lot of goals scored on us, so that’s a positive.”
The Sailors surrendered only 13 goals last season, including only a single goal over seven MHSAA tournament victories.
They defeated Williamston 1-0 in a shootout to capture their third MHSAA Final in the last six years.
Selvius was one of the heroes in that game with 14 saves, and Boersma knew his absence in the net would be felt entering this season.
There was no clear-cut favorite to take over in net at the beginning. That allowed Boersma to look at a group of potential replacements.
“That’s why I kept four of them on my team,” Boersma said. “We knew what we were losing, and we had four guys who were somewhat equal. They all had different strengths and weaknesses, and we were going to let them battle it out.”
Junior Jake Tanis earned the job, and has spent a majority of time in the net.
“I’m going to give him as much experience as I can right now with him playing every single game just for more knowledge back there,” Boersma said. “He was more of a field guy, but his best chance to get time on this team was as a goalie. He has a big frame. He’s 6-2, 230 pounds, and so he has good size and is very athletic. He’s really learning right now.”
Senior midfielder Ryan Doornbos is one of eight starters back. He has faith in the players who have filled in at important positions.
“I trust them,” he said. “They’ve done a good job so far in replacing those roles, and I hope they continue to do that the rest of the year.”
Thirteen in all have returned from last season, including standouts Zack DeKock, Emmett DeJong, Sam DeVries and Daniel Sculley.
The Sailors opened the season with nine straight wins, but suffered consecutive losses to East Grand Rapids (2-0) and Caledonia (1-0) during the past week.
Doornbos missed both games with a concussion, while DeKock also is nursing an injury and didn’t play against Caledonia.
“It’s a huge difference with having him on the field for the team chemistry and moving the ball around,” Boersma said. “The effort he brings is phenomenal, and that’s a huge loss without him. He should be back within a week.”
The recent setbacks and injuries haven’t spoiled the Sailors’ outlook. Boersma would rather have them occur now than in late October and November.
“The guys are OK with losses because they learn from them,” he said. “Obviously no player likes to lose and they are competitive, but they are real good at sitting back after a game and knowing that they have to work on this and this.
“They are a very hard-working crew, and that’s one of my favorite things about them. They leave it all on the field each and every day. They know in games they lost that we made small mistakes. We make sure they don’t happen again.”
Boersma believes this team has the talent to make another deep run, but understands it will revolve around defensive adjustments.
“Knowing all the offense we had back, I was incredibly optimistic that we were going to have an opportunity, if we play the game we’re capable of playing, that on paper (we) could be one of the best teams in Division 3 in my mind,” Boersma said. “We also know soccer, and all the years I’ve watched my teams do well it has typically been my defense. You get great teams towards the end, and in the playoffs and there are numerous games you have to win in a shootout. That’s the way it goes in soccer.”
Doornbos hopes this year’s team can follow in the footsteps of last year’s in terms of staying together and creating a positive atmosphere.
“I think we need to keep each other hyped up and really be tight as a family,” he said. “I think that’s what helped us last year; our whole team was a family. We also enjoyed it last year, and that’s how we kept winning because we were having fun. We need to do those things and keep working hard.”
Dean Holzwarth covered primarily high school sports for the Grand Rapids Press and MLive for 16 years and more recently served as sports editor of the Ionia Sentinel and as a sports photojournalist for WZZM. Contact him at[email protected] with story ideas for Allegan, Kent and Ottawa counties.
PHOTOS: (Top) South Christian players, in white jerseys, defend their goal against Middleville Thornapple Kellogg last week. (Middle) Key returnee Zack DeKock moves the ball upfield. (Photosby Craig Pollatz.)
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.