Mackey Leaving Court with 500+ College Hoops Wins, Many More Lessons Shared
By
Jason Juno
Special for MHSAA.com
July 24, 2026
IRONWOOD — Dennis Mackey made a big impact on generations of athletes at Gogebic Community College, so much so that college officials named the basketball court after him while he was still coaching.
Mackey retired from coaching in April after 38 years at GCC, 19 with the women and 19 with the men. Even after all of those years, and more than 500 wins, the memories and lessons from his playing days at Ewen-Trout Creek still resonate with him.
He was always doing something athletically, football in the fall, baseball in the summer, track & field in the spring. His home being basketball-centered E-TC – the tiny Upper Peninsula school with nine combined boys and girls MHSAA Finals appearances – hoops was always mixed in.
“Basketball was the winter sport, but no matter the season we always found time to get to the gym and shoot hoops,” Mackey said. “Whether it was during the lunch hour, after school, on weekends, or after practices, we seemed to gravitate to the gym for some action.”
And if they didn’t go to the gym, there were outdoor courts in Ewen, Bruce Crossing and Trout Creek to get shots up.
“Basketball was the main sport in those communities and probably is still to this day,” Mackey said. “Looking back now, I must say the experiences growing up playing basketball at E-TC was awesome.”
Mackey, a 1981 graduate, played on the varsity team all four years of high school. The Panthers lost in the Regional Final at Northern Michigan University’s Hedgcock Fieldhouse both his junior and senior seasons.
“We had deep and talented teams but fell short of our goal of reaching the state finals both years,” Mackey said.
He won the Ed Helakoski Award as the most valuable senior in the Porcupine Mountain Conference. Even though he was a 1,000-point scorer, he took pride in other aspects of the game.
“I played the forward position, oftentimes guarding the opposing team’s best inside player,” Mackey said. “I prided myself on being a hardworking and unselfish player. I really enjoyed passing the ball to teammates for their scoring opportunities.”
Mackey went on to play basketball at Gogebic. After graduating from Northern Michigan University, he eventually got a call about an opening for a part-time business instructor and women’s basketball coach at Ironwood’s college.
He was excited to take over the team heading into the 1988-89 season. Six years into his tenure, he led a balanced Samsons team to the program’s first national tournament. They won another Region 13 title three years later.
Another E-TC graduate, Deke Routheaux, retired as men’s coach after the 2005-06 season. Mackey didn’t make the switch, instead opting to coach his daughter Caitlin in her first season at Gogebic. The job opened up again a year later, and he debuted as men’s coach in for 2007-08. They men won Region 13 championships in both 2011 and 2013, just missing trips to the national tournament both years.
He said the goal was to win more games and Region titles, but his teams usually left it all on the court.
Mackey finished his tenure with the women with a record of 256-227 and a 277-263 record with the men. “It’s often said that teams tend to take on the identity of their coach,” Mackey said. “As I walk out the door, I’ll leave knowing my teams, like their coach, were known as fierce competitors.”
His signature saying is printed on the Lindquist Center court, “Coach Mackey Court,” — ”Once a Samson, Always a Samson.”
He wants the entire college to succeed, beyond just the basketball program. He took a lot of pride in giving local players a chance to play college basketball. He still supports them after they graduate.
Players came back yearly to play in their main fundraiser, the Spring Thaw Classic.
When GCC named the court after him, many of those he left an impact on filled the Lindquist Center gym on a random Tuesday game night in November.
Many appreciate the impact he had on their lives. He knows the importance of sports, whether it’s at the college level that he’s been at the last nearly 40 years, or at E-TC, where he got his start.
“Participation allows many to express themselves in ways that open doors to other life opportunities,” Mackey said. “High school athletics provide opportunities for youth to develop individual skills while learning life lessons at the same time. No matter the sport, learning to be a great teammate is challenging for most young people. Dedicating one’s time and efforts to improving oneself while also helping the team be better can be difficult. We all strive to be the best and win games, but are we willing to do the work to achieve the desired results? Everyone enjoys receiving the accolades, but many are unwilling to sacrifice the time and energy required to improve and develop individual skills, which enables this to happen.”
All three of wife Andrea (who was a big help to the GCC program as well) and his kids, Caitlin, Jesse and Adam, played high school basketball and then for Gogebic as well. Dennis said Adam was a similar player to him but a better scorer — he’s Ironwood’s all-time leader — who also wanted to get his teammates involved. They all teach at Ironwood now; Adam is the boys varsity basketball coach and Jesse the varsity girls coach.
The Mackeys continue to pass on many life lessons via high school sports.
“The thrill of victory and the agony of defeat not only applies to the games we play but to life in general,” Dennis said. “Success in high school is often measured with wins versus losses, but in the game of life the valuable lessons learned from the sports we play provide a platform for future growth. There are many folks employed in a variety of vocations who often credit their youthful days of playing sports as the impetus for their success later in life. The bonds created with teammates and opponents often last a lifetime. These bonds are immeasurable and help many advance in all facets of life.”
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PHOTOS (Top) At left, Dennis Mackey (45) gets up a shot for Ewen-Trout Creek against Wakefield as a senior during the 1980-81 season. At right, Mackey coaches up his Gogebic Community College men’s basketball team this past summer. (Middle) Mackey huddles with his players during a break. (GCC photos by Jason Juno. Ewen-Trout Creek photo courtesy of the Ironwood Daily Globe.)
Father & Son Seidl Have Much to Discuss, Notes to Compare From Perfect Starts
By
Doug Donnelly
Special for MHSAA.com
February 7, 2023
Matt and Derek Seidl have a lot to talk about these days.
The father and son duo both have highly-ranked, undefeated basketball teams going into the first full week of February, something neither of them saw coming.
“We were hoping for a season like this, but you never think about winning this many in a row,” said Matt Seidl, the father and head coach of the 15-0 Olivet Eagles. “When our season ended last year, we knew our top seven players would all be returning.”
About 50 miles south of Olivet, in Jackson County, Derek Seidl has the Napoleon Pirates off to a 14-0 start. They are sitting on top of the Cascades Conference.
“We have a really talented group right now,” Derek said. “We were 19-3 last year and brought six guys back. Having that experience has been very valuable.”
Olivet is ranked No. 2 in MPR in Division 2 while Napoleon is No. 9 in Division 3. Both are top-10 teams in the latest Associated Press polls as well.
Matt Seidl, 60, graduated from Ypsilanti Lincoln High School in 1981 and went to Eastern Michigan University to become a sportswriter. He didn’t begin teaching until he was in his early 30s, but, by then, was already a veteran coach.
“It was getting difficult because I was always leaving my job to go coach,” he said. “I decided to go and get my teaching degree.”
He wound up in the classroom, which enabled him to dive deeper into coaching. He spent several years coaching at the middle school and high school levels, boys and girls, with stops at places like Pinckney, Ypsilanti, Manchester, Willow Run and Romulus. He was the JV boys basketball coach at Dexter when his son, Derek, made the team as a freshman.
By then, Derek already knew he would be on the bench one day as a coach.
“I played for my dad in youth travel stuff, and he was on staff for one year my freshmen year of high school,” Derek said. “He was a varsity coach all growing up. I was always at games. I loved talking to him about the game, the strategy of it, the Xs and Os. Even when I was younger, I thought about coaching someday. Growing up if you would have asked me what my dream job was, it would have been a teacher and coach.”
Derek, 27, graduated from Dexter in 2014. He played four years of college basketball at Lawrence Tech University. After getting his master’s degree and teaching degree, he got his first coaching job as an assistant coach at Chelsea, under Josh Tropea, who also had coached with Matt.
Derek’s first teaching and head coaching job came at Springport in 2019-20. This is his third year at Napoleon.
“It’s been a really good fit here,” Derek said. “Before I started looking into the job, I barely knew anything about Napoleon. It has worked out well.”
Matt is also the athletic director at Olivet. If he would have had his way, Derek would be coaching at Olivet.
“Derek did a really good job at Springport, and we had an opening and he interviewed and was recommended for the job, but before they offered it to him, Napoleon hired him,” Matt said. “He would have been the perfect choice to teach math and coach basketball.”
With Derek no longer in the running, Matt came out of coaching retirement and was named head coach.
“It was going to be a one-year deal, sort of a band-aid to get us to the next year,” he said.
Instead, Matt’s stayed on and put together quite a successful team. The Eagles have gone 47-6 since the start of the 2020-21 season. This year’s team has taken a big step.
Junior Bo Lincoln, a 5-foot-11 junior point guard, leads the team in scoring (17.1 points per game), assists (3.6 per game), steals (3.0 per game) and free throw percentage at 78 percent.
Drew Priddy, a 6-5 senior center, is averaging about eight points and seven rebounds a game, and junior guard Bryce Wine is averaging nine points a game and leads the team in 3-pointers.
“We had quite the youth movement a few years ago,” Matt said. “We go 8-9 deep now and have a lot of experience. Having those young guys play a couple years ago is paying off.
“We are a good team, but we’re not a 70-possessions-a-game type of team. We know who we are.”
Derek also knows plenty about his dad’s team.
“I definitely keep track of them,” he said. “We talk on the phone on a daily basis – 30 minutes about Napoleon and 30 minutes about Olivet. We bounce things off each other. We run a lot of the same stuff as far as systems. We’re very connected on things.”
Matt and Derek’s teams tried to have a good old-fashioned scrimmage, or exhibition, last year but – with Derek’s team ahead – Matt received two technicals and got kicked out of the game. It’s a fun story for both to tell now.
“That was wild,” Derek said. “It was a cool thing we had going. We were winning so I was enjoying it, but that put a whole different spin on the situation.”
Matt said they probably won’t do that again. Probably.
“My wife said no,” he said. “Derek and I have talked about it, but I don’t know that it would ever happen.”
Derek said one day he’d like to coach with his father.
“I’m very energetic and into it, just like he is,” Derek said. “There are some similarities. I played for him and watched him a lot. I try and pull some of the things he does, being prepared. We get along super well. I don’t know if I could trust him to not get technical fouls.”
He’s kidding, of course.
Napoleon has a core group of four players with a ton of experience.
Devonta Habern is a 5-11 junior who is on the varsity for the third year and runs the show at point guard. Six-foot-5 senior Trent Jester is one of the best big men in the conference. University of Michigan baseball commit Grant Bradley is a three-year varsity starter and outstanding athlete. Holden Vanpoppel is an all-state track athlete who has turned into a pretty good basketball player.
“Grant is super steady and having a great year,” Derek said. “He looks like he’s been in the weight room since he was 5 years old. He can guard anybody. Vanpoppel is an unbelievable run and jump athlete. All four of these guys are averaging in double figures. They are really good athletes who have invested in the program and put the time in.”
“We’ve got a very talented group,” Derek said. “They are a little looser than I am. I tend to be very calculated, kind of analytical and serious. They like to goof around a little bit. They keep me even-keeled. They know when to get serious. It’s good for me to have a group like that.”
Derek said his squad wants to exceed expectations this year.
“We talk about that after every game – don’t be satisfied just because we are undefeated,” Derek said. “There is plenty more to accomplish. Last year we went 18-2 in the regular season and 19-3 overall, but we didn’t win a league or a District. Our guys have bought into that mindset. That’s helped us get to where we are.”
Matt is keeping a close eye on not only his team, but Derek’s as well.
“I probably get more stressed watching his games,” he said. “I’m really proud of what he has been able to do.”
Doug Donnelly has served as a sports and news reporter and city editor over 25 years, writing for the Daily Chief-Union in Upper Sandusky, Ohio from 1992-1995, the Monroe Evening News from 1995-2012 and the Adrian Daily Telegram since 2013. He's also written a book on high school basketball in Monroe County and compiles record books for various schools in southeast Michigan. E-mail him at [email protected] with story ideas for Jackson, Washtenaw, Hillsdale, Lenawee and Monroe counties.
PHOTOS (Top) Father Matt, left, and son Derek Seidl are leading undefeated boys basketball teams this season at Olivet and Napoleon, respectively. (Middle) Senior Brayden Wine makes a move toward the basket for the Eagles. (Below) Derek Seidl instructs his players. (Olivet photos courtesy of Olivet High School; Napoleon photos by Jeff Steers/JTV.)