Week 13 of NCAA wrestling saw significant team and individual upsets that will give our rankers plenty of work to do. With more than 30 upsets and double-digit top tens going down, it really was a wild one. Here are this weekend's biggest upset stories.

Cassioppi Took Out #2 Kerkvliet

One short week after Greg Kerkvliet upset Mason Parris, Tony Cassioppi reminded us all that we might be witnessing the toughest field of heavyweights ever. Is Cassioppi a threat to make the NCAA finals opposite Gable Steveson? He looks like just might be.

Iowa Hawkeye Wrestling's highlights from Cassioppi's upset

285| Tony Cassioppi finishes off strong with big takedown to give the #Hawkeyes the win via decision 7-2. #FightForIowa pic.twitter.com/AJs2uv1mWN

— Iowa Hawkeye Wrestling (@Hawks_Wrestling) January 29, 2022

Three Big Upsets Push Unranked UNI Past #4 Oklahoma State

The Oklahoma State Cowboys had a rough weekend, and the UNI Panthers are partly responsible. 157-pounder Derek Holschlag, 165-pounder Austin Yant, and 174-pounder Lance Runyon had massive performances en route to Saturday night's team upset.

Holschlag and Yant knocked off All-Americans in Wyatt Sheets and Travis Wittlake while Runyon defeated #8 Dustin Plott. The Panthers also took out #21 Oklahoma on the road. Coach Schwab discussed the team's performance over the weekend on today's episode of The Bader Show.

Doug Schwab discusses UNI's big weekend on The Bader Show

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Buchanan & Elam Tangle In Top 5 Battle

Wyoming's #5 Stephen Buchanan and Missouri's #4 Rocky Elam met in a top 5 showdown at Utah Valley. The match was hard-fought, but Buchanan came out on top.

Watch Stephen Buchanan and Rocky Elam's tight contest

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125

#23 Kysen Terukina, Iowa State D;2-1 #5 Trevor Mastrogiovanni, Oklahoma State

HM Joey Prata, Oklahoma D;6-5 #23 Kysen Terukina, Iowa State

Logan Heil, Cleveland State D;9-4 HM Jake Ferri, Kent State

133

Ramazan Attasauov, Iowa State D;4-1 #10 Anthony Madrigal, Oklahoma

HM Kyle Biscoglia, Northern Iowa D;4-0 #10 Anthony Madrigal, Oklahoma

Kobe Early, Appalachian State F;4:47 #14 Jaime Hernandez, North Carolina

HM Brian Courtney, Virginia D;5-3 #14 Jaime Hernandez, North Carolina

Angelo Rini, Columbia D;11-8 #19 Josh Koderhandt, Navy

141

Ty Smith, Utah Valley D;2-1 #5 Allan Hart, Missouri

#13 Jakob Bergeland, Minnesota D;5-2 #9 Stevan Micic, Michigan

Ryan Anderson, Binghamton D;6-4 #16 Matt Kazimir, Columbia

149

Willie McDougald, Oklahoma D;4-2 #24 Jarrett Degen, Iowa State

Umihiko Saito, Brown D;4-1 HM Anthony Artalona, Penn

Willie McDougald, Oklahoma D;4-3 HM Colin Realbuto, Northern Iowa

157

Derek Holschlag, Northern Iowa D;3-2 #13 Wyatt Sheets, Oklahoma State

#19 Jarrett Jacques, Missouri D;5-3 #14 Jacob Wright, Wyoming

HM Elijah Cleary, Pittsburgh D;5-1 #18 Connor Brady, Virginia Tech

HM Hunter Richard, Cornell D;5-4 #23 Andrew Cerniglia, Navy

165

#17 Austin Yant, Northern Iowa D;2-0 #6 Travis Wittlake, Oklahoma State

#18 Luke Weber, North Dakota State F;:47 #12 Peyton Hall, West Virginia

Brevin Cassella, Binghamton M;9-0 #21 Joshua Ogunsanya, Columbia

Brady Chrisman, Kent State D;7-5 HM Riley Smucker, Cleveland State

Isaac Judge, Iowa State D;8-4 HM Joe Grello, Oklahoma

174

HM Lance Runyon, Northern Iowa F;4:59 #8 Dustin Plott, Oklahoma State

Sean Harman, Missouri D;4-2 #12 Hayden Hastings, Wyoming

Nick South, Indiana D;3-2 #17 Gerrit Nijenhuis, Purdue

Nate Dugan, Princeton D;6-4 HM Josh Kim, Harvard

184

#8 Marcus Coleman, Iowa State D;8-3 #7 Dakota Geer, Oklahoma State

HM Christopher Weiler, Wisconsin M;12-4 #13 Kyle Cochran, Maryland

Brian Bonino, Columbia D;5-3 HM David Key, Navy

Cory Day, Binghamton D;6-4 HM David Key, Navy

197

#5 Stephen Buchanan, Wyoming D;3-2 #4 Rocky Elam, Missouri

HM Jaron Smith, Maryland D;11-9 #8 Patrick Brucki, Michigan

285

#5 Tony Cassioppi, Iowa D;7-2 #2 Greg Kerkvliet, Penn State

#24 Michael Wolfgram, West Virginia F;1:28 #23 Brandon Metz, North Dakota State

Jacob Bullock, Indiana D;6-4 HM Michael Woulfe, Purdue