Be the Referee: Blocking Below the Waist
November 13, 2014
This week, MHSAA assistant director Mark Uyl explains the differences between high school and the college and professional games when it comes to blocking below the waist.
"Be the Referee" is designed to help educate people on the rules of different sports, to help them better understand the art of officiating and to recruit officials. The segment can be heard on Mondays, Wednesdays and Fridays during the school year on The Drive With Jack Ebling on WVFN-AM, East Lansing.
Below is this week's segment - Blocking Below the Waist - Listen
Many times the key rules differences between high school football and those rules used at the college and profession levels deal with player safety. One of the best examples of this deals with the rules that cover blocking below the waist.
All of us have watched that game played on Saturday or Sunday; we’ve seen that wide out or the wide receiver blocking downfield, and they block the defender below the waist in springing that runner for a big gain.
At the high school level, the only offensive players that can block below the waist are those on the offensive line, generally positioned from tackle to tackle, and those blocks below the waist must be immediate – at the snap – and within that free blocking zone at the line of scrimmage.
Past editions
Nov. 5 - Tournament Selection - Listen
Oct. 29 - Uncatchable Pass - Listen
Oct. 22 - Preparation for Officials - Listen
Oct. 15 - Automatic First Downs - Listen
Oct. 8 - Officials & Injuries - Listen
Oct. 1 - Overtime - Listen
Sept. 25 - Field Goals - Listen
Sept. 18 - Tackle Box - Listen
Sept. 11 - Pass Interference - Listen
Aug. 25 - Targeting - Listen
What's My Why: Official Jenna Schroeder
September 9, 2026
Jenna Schroeder, Berkley
Jenna Schroeder has been an NBA referee since 2020 and previously worked in the NBA-G League. Prior to officiating, she played basketball at Oakland University and Saginaw Valley State University.
She was an MHSAA-registered basketball official in 2003-04, 2005-06, and then from 2010-18, and also officiated girls lacrosse for four seasons. She's Clio's all-time leading girls basketball scorer and participated in the MHSAA Officials Legacy Program.
I got into it because I played basketball my entire life. I graduated college in 2009, during the housing crisis and no job prospects, so I tried refereeing and got bit by the bug and I’ve been obsessed with it ever since then.
“What’s My Why” is a weekly feature telling the stories of MHSAA-registered officials in their own words. If you’re an MHSAA official and would like to share your reason why, please submit a 15 to 45-second video, taken horizontally, to director of officials Sam Davis at [email protected].
What's My Why
Sept. 2: Joey Crawford, Newton Square, Pa. - Watch
Aug. 26: Ron Torbert, Hanover, Md. - Watch
Aug. 19: Kari Seitz, Mill Valley, Calif. - Watch
Aug. 13: Mike Pereira, Sacramento, Calif. - Watch
Aug. 5: Dino Paganelli, Wyoming - Watch
Aug. 3: Stacy Smith, Caledonia - Watch
July 22: Jason Nickleby, Lake Elmo, Minn. - Watch
July 15: Sam Davis, Lansing - Watch
July 9: Candace Cox, Quincy - Watch
July 1: Robert Williams, Redford - Watch
June 24: Will Godfrey, Jackson - Watch
June 19: Jarrett Skorup, Midland - Watch
June 12: Brady Driver, Sturgis - Watch
June 8: Cindy Tyzo, West Bloomfield - Watch
June 3: Jeff Spedoske, DeWitt - Watch
June 1: Mike Carrier, Commerce Township - Watch
May 27: Stan Wright, Warren - Watch
May 26: Murray Rose, Zeeland - Watch
May 22: Mike VanLaan, Alto - Watch
May 18: Clint Abbott, Newaygo - Watch