He's Got the Goal-den Touch

September 28, 2012

By Geoff Kimmerly
Second Half editor

Their games were fueled by typical sibling rivalry. To Lee Chatfield, the endings were humorous. To his two little brothers, more like cruel.

Sixth-grader Paul and fifth-grader Aaron regularly would take on their senior brother on a makeshift soccer field in the family’s back yard. They’d play games to 10, the two youngest brothers against a standout on the Burt Lake Northern Michigan Christian varsity.

Lee would let them score nine goals before dribbling circles around his siblings. Paul and Aaron would yell at each other to somehow block Lee’s path, but to no avail. Inevitably tears would fall.

“Maybe I was being a baby,” Aaron said. “He would let us get up and then come back and beat us, and he’s laughing while we would just cry.”

But on that backyard soccer field, Aaron Chatfield also learned how to compete. And there’s no question it paid off during one of the most accomplished careers in MHSAA soccer history.

Chatfield scored his 173rd career goal on Sept. 21 against Elk Rapids. He’s pushed that total to 178 heading into this weekend’s games against Fife Lake Forest Area and North Muskegon. A Second Half High 5 recipient this week, Chatfield has 45 goals this season after scoring a career-high 56 in 2011.

“Up until seventh grade, he couldn’t lose a game and not cry,” said Lee, also Northern Michigan Christian’s coach the last three seasons. “It built a little chip on his shoulder.

“But it’s always been God-given (talent). And Aaron has worked tremendously hard to hone the gifts God has given him.”

All in the family

To set the record, Chatfield passed 2009 Dearborn graduate Soony Saad, who went on to lead the NCAA with 19 goals as a freshman at the University of Michigan in 2010 and now plays for Sporting Kansas City of Major League Soccer.

Chatfield learned about Saad as he was pursuing the record, but admitted he isn’t familiar with most of the others on the MHSAA all-time goals list.

However, there are a few he knows better than anyone – there are five Chatfield brothers total, and three more also are among the most prolific scorers in MHSAA history.

Entering this season, Nathan Chatfield was second on the career goals list with 170, scored from 2001-04. Spencer was tied for 12th with 121 goals from 1998-01. Paul is tied for 19th with 109 goals during a career that ended last fall. Lee was a sweeper, so his game was stopping goals instead of scoring them – but he did a fine job at that as well.

Aaron, being the youngest, tried to pick up certain qualities from each. Nathan, the second-oldest, was “a natural goal-scorer, probably the fastest. He would just outrun people,” and holds the MHSAA record with 272 career points, although Aaron needs only five more to match him.

Oldest brother Spencer “could dribble like no other.” Paul was “built differently than all of us … but he could double scissor you up. He’s very physical.” Lee was “more like me; he was the best defender,” and Aaron played in the back from third through eighth grades.

“I would like to think I’m more of a mix of everybody,” Aaron concluded.

“Almost everything I do, I’ve learned from them. The way that they play, people say all the time that I remind them of my brothers.”

He can play with anyone

The best compliment – and a strong representation of how Chatfield matches up statewide – comes from Petoskey coach Zach Jonker.

The Northmen have made two recent trips to the MHSAA Finals and regularly load up their schedule with top-ranked teams from Divisions 1 and 2 including East Kentwood, Rochester Hills Stoney Creek, Warren DeLaSalle and Bloomfield Hills Lahser. Petoskey also regularly scrimmages Northern Michigan Christian.

“He’s the most dangerous individual we’ve faced all season. When he received the ball against us, we kinda held our breaths,” said Jonker, who also knows the Chatfields well through the club program. “He has a great combination of speed with the ball and power. He has great balance and he’s tough to knock off the ball. And he’s got another gear; he can explode by (defenders).

“We double teamed the guy, and we haven’t had to give any individual we’ve played all season that kind of attention.”

Chatfield joined an Eagles varsity in 2009 that had only three seniors. Not only did he start immediately, but he also was named a co-captain.

Last season’s team became an incredible story, advancing to the Regional Final on a 24-game winning streak before losing for the first and only time of the fall, 2-0 to eventual MHSAA runner-up Muskegon Western Michigan Christian. Chatfield scored in every game but that last one.

He also has cut his teeth playing for his club team, the Petoskey Lakers, and his teams are a combined 24-2-2 during their last three seasons playing in the Michigan State Premier Soccer Program. Chatfield scored 1.9 goals per game last club season, down from 2.5 the season before. There is interest from a number of colleges, and he is looking at options of all sizes, from Division I to NAIA.

Chatfield has logged plenty of miles to see strong competition, and one game as a sixth grader left Lee with the impression that big things were on the way.

“There was one moment when I was standing on the sideline, and he did a spin move and split two defenders with a scissor. At that moment, I thought this kid has got it,” Lee said.

“He’s always been tenacious. He’s a natural-born competitor. He’s anything but a prima donna. He just wants to win.”

PHOTO: Burt Lake Northern Michigan Christian's Aaron Chatfield dribbles through defenders during a game earlier this season (Photo courtesy of the Petoskey High School soccer program.)

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.