This clinic is now sold out. registration is closed.


Saturday, August 10 // Ann Arbor, MI

A clinic for the love of the game.

Since its launch in 2015, the annual SEMSO High School Football Officiating Clinic has focused on one goal: to improve the skills and confidence of our officials, building a stronger officiating community overall. 

Officials training is not just our job, it’s our passion.

Saturday, August 10

Registration: 8:00am

Rules Meeting: 8:30am

Clinic: 9:00am – 4:30pm

Networking Hour: 4:30pm – 6:00pm

Only $65 per attendee

FEE includes:

  • Clinic & Training Materials
  • MHSAA Rules Meeting
  • Hot Buffet Lunch
  • Sponsor Gift

THe SEMSO Difference

Expert Clinicians

Our clinicians are not only accomplished in the NCAA, they are rooted in local high school associations and training to stay attuned to the topics and training that matters most to you.

Specialized Training

We don't believe in one-size-fits-all.
That's why we've built specialized sessions based on your interests, position, and skill level, from rookie to college-ready.

Built By You

We take the feedback of our attendees seriously. Each year we review survey feedback and consult with our local associations to make improvements and deliver the content that matters most to you.

Our New Venue in 2019

Weber's Inn

You asked, we listened. We are excited to announce a new venue for our growing program. Larger session rooms, streamlined logistics, better acoustics, same great team.

3040 Jackson Road

Ann Arbor, MI 48103


Mark Uyl

Executive Director

Formerly a high school teacher, coach and administrator and currently Executive Director for the Michigan High School Athletic Association and one of the nation’s most respected voices in sports officiating. Additionally, Uyl served on the board of directors of the National Association of Sports Officials (NASO) from 2012-15. Currently, he serves as the high school representative on the Officiating Development Alliance (ODA), and is the Coordinator of Football Officials for the NCAA Division III MIAA conference.

Jeremy Valentine

Football training & development


Since founding the clinic in 2015, Jeremy continues to advance his involvement in both collegiate and high school officiating. He serves as a key assignor in the southern michigan area and recently accepted a role as Football Training and Development Assistant and Football Mechanics Committee Chair with the MHSAA.

Meet Our Clinicians

Alex Bade

Field Judge - Gliac

Alex’s passion and dedication to officiating is world class.  As one of the youngest Division II officials around, Alex will share advanced officiating techniques designed to help you reach your next goal, wherever that may be. Alex has over 15 years officiating experience, including a high school State Championship.

Gary Blackford

referee - semso

A current Director for Consumers Energy, as well as a multi-championship high school official with nearly 30 years of experience, Gary is an outstanding leader, mentor, and role-model for upcoming officials starting their career.  We’re excited to welcome Gary back this year to lead our course focused on developing our new officials.

Brian Bower

Referee/Head Line-Judge - GLIAC

Brian brings over 20 years officiating experience to his teaching. He has advanced at both the collegiate and high school level, working as a high school State Championship Referee. In addition to broad experience on the field, Brian has a passion for working within the officiating community, serving as the Associate Football Coordinator for SEMSO. Working as a multi-position Division II official, Brian is another example of how Line of Scrimmage and deep wing positions can mesh as an unstoppable sideline team.


Nick Brigati

Head Line judge - MAC

Nick has a passion for advancing officials at all levels of play.  As an Assistant Director of Intramural Sports at Penn State University, Nick is responsible for training and development of over 200 new officials each year.  His ability to train, coach, and mentor officials at all levels makes him an outstanding asset to any clinic.  We are extremely thankful to have Nick make his way from Happy Valley to again provide some of the best Line of Scrimmage instruction to our officials.

Dennis Busse

Umpire - GLIAC

This is Dennis’ first year as a SEMSO clinician, and we are lucky to have him. Dennis has 15 years of officiating experience as a multi-position official, working Line of Scrimmage, Deep, and Umpire at the NCAA Division II level.  He brings a great deal of knowledge of knowledge of how Umpire mechanics can best serve the rest of your crew.

AJ Haduch

Head Line-judge - GLIAC

AJ is returning SEMSO clinician and always a favorite of his session attendees. He’s spent 15 years officiating at both the high school and collegiate level, working as Head Line-Judge at a State Championship game. Developing a strong career within the University of Michigan, AJ has a 360-degree view of athletic programs, officiating, and leadership to share.

Brad Mutnick

Referee - Gliac

Brad brings an energetic and engaging approach to every teaching opportunity. He brings over 20 years of officiating experience, including two high school state championships. Brad also serves as a mentor to up and coming football officials.

Dave Siegle

Referee - MVFC

Dave brings over 20 years of football officiating experience to our clinic, a majority of which working as a Referee and Crew Chief.  Dave led the 2013 Division II National Championship crew and is entering his 5th season as a Division I Referee.  Dave’s insight on leadership, philosophies, and mechanics are superb.  It is a great pleasure to welcome Dave back this season!

Jeremy Valentine

Referee - MAC

In addition to his involvement with high school officiating, Jeremy showcases over 20 years of officiating experience entering his first year as a Referee and crew chief in the NCAA Division I Mid-American Conference.  Other career highlights include the 2013 NCAA Division II National Championship, 12 NCAA postseason assignments, and two high school state finals.

Chuck Walters

Referee - SEMSO

Chuck brings over 30 years of officiating experience, making him one of our most tenured clinicians. He’s been a referee at several State Championship games and serves as an MHSAA Mechanics Committee member. Chuck has a passion for high school officiating and mentoring new officials, hoping to pass his knowledge and skills to the next generation of football officials.

Special Thanks To Our Sponsors

We are grateful for amazing partners like you.

What Our Attendees Say

Best overall clinic information and white hat track session so far.

This staff knows their stuff.

Having attended previous clinics put on by other associations, this clinic was far superior.

Content is realistic and pertinent to today’s game.

Very well run. The information was pertinent and there wasn’t a lot of redundancy. I’d encourage others to attend.

Worthwhile to recommend and return. Nothing taken for granted.

One of the best I have attended.

Always a great event. Makes it tough to get better every year!

Best clinic I’ve attended in a long time.

It was wonderful. I learned a ton.

Well organized, well presented. Hope to attend again next year.

Outstanding, quality of clinicians was very good. I will come back next year.

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