With over 100 ranked ranked wrestlers in the brackets, the 2017 Cliff Keen Las Vegas is a grind like no other. 

There were landmines everywhere for the top 20 wrestlers who arrived at the Las Vegas Convention Center on Friday. Below is a list of every upset from the championship brackets during a crazy first day. 

141 Round of 64: UR Nick Zanetta, Pitt over No. 9 Javier Gasca, Michigan State

Fourteen top 10 wrestlers went down to lower-ranked guys on Friday. Zanetta got things started by taking out Michigan State's ninth-ranked veteran in a wild 18-15 pigtail bout.

125 Round of 16: UR Will Bardezbain, Kent State over No. 9 Dalton Macri, North Carolina

Bardezbain gave Macri a rude welcome back to his first varsity action of the season.

174 Round of 16: No. 16 CJ Brucki, Central Michigan over No. 8 Brandon Womack, Cornell

Brucki felled Cornell's All-American from Alabama to make the quarters.

125 Round of 16: Christian Moody, Oklahoma over No. 10 Luke Welch, Purdue

A sleeper knocks off a dark horse in this lightweight thriller. 

285 Round of 16 UR Shawn Streck, Purdue over No. 8 Ryan Solomon, Pitt

Purdue's freshman Shawn Streck slows Pitt's Ryan Solomon's roll in a 10-8 nail-biter.

197 Quarterfinal: UR Tom Lane, Cal-Poly over No. 5 Kevin Beazley, Michigan

Beazley's loss to the unranked Lane won't help his case for a starting spot over teammate Jackson Stiggow.

133 Quarterfinal: No. 13 Josh Terao, American over No. 7 Dom Forys, Pitt

Senior Dom Forys returns to action but runs into Josh Terao, who sends him into the consolation round

141 Quarterfinal: No. 12 Josh Alber, Northern Iowa over No. 7 Tommy Thorn, Minnesota

Alber adds to Minnesota's Vegas woes with a minor upset of the All-American Thorn.

125 Semifinals: No. 12 Taylor LaMont over No. 3 Ethan Lizak

Utah Valley gets a semifinalist as redshirt freshman Taylor LaMont beats his second NCAA finalist of the year.

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125 Semifinals: No. 19 Jacob Schwarm, Northern Iowa over No. 6 Ryan Millhof, Oklahoma

After LaMont took out the No. 1 seed at 125, UNI's Schwarm takes out the No. 2 seed

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184 Quarterfinal: No. 19 Taylor Venz, Nebraska over No. 7 Drew Foster, Northern Iowa

Nebraska freshman Taylor Venz breaks through to the quarters with a pin over All-American Drew Foster.

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184 Semifinals: No. 19 Taylor Venz, Nebraska over No 8 Jordan Ellingwood, Central Michigan

The Cornhuskers' pinning machine keeps the streak going with a pinfall to the semis, his fourth of the day.

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165 Semifinals: No. 15 Evan Wick, Wisconsin over No. 3 Logan Massa, Michigan

In the biggest upset of the day, No. 15 Evan Wick knocks off No. 3 Logan Massa in dramatic manner. 

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174 Quarterfinal: No. 9 Nick Wanzek, Minnesota over No. 8 Anthony Valencia, Arizona State

Hardly an upset and in a razor-close match, we include this one only for the pedants.

Below are the rest of the upsets that didn't feature a top 10 wrestler but contributed to a manic Friday in Vegas nonetheless.

125 Round of 64: UR Michael Russo, Cornell over No. 11 Louie Hayes, Virginia

157 Round of 64: UR Andrew Shomers, Eindboro over No. 20 Justin Staudenmeyer, Brown

149 Round of 32: UR Michael Sprague, American over No. 19 Davion Jeffries, Oklahoma

165 Round of 32: UR Jon Viruet, Brown over No. 13 Keilan Torres, Northern Colorado

165 Round of 32: UR Jon Morrissey, Purdue over No. 19 Andrew Fogarty, North Dakota State

165 Round of 32: UR Zac Carson, Eastern Michigan over No. 12 Branson Ashworth, Wyoming

174 Round of 32: UR Kyle Pope, Wyoming over No. 18 Ben Harvey, Army

197 Round of 32: UR Rocco Caywood, Army over No. 19 Daniel Chaid, North Carolina

197 Round of 32: UR Stephen Loiseau, Drexel over No. 15 Christian Brunner, Purdue

285 Round of 32: UR Cory Daniel, North Carolina over No. 15 Brett Dempsey, American

133 Round of 16: Austin DeSanto, Drexel over No. 12 Dennis Gustafson, Virginia Tech

141 Round of 16: No. 19 Eli Stickley, Wisconsin over No 16 Michael Longo, Oklahoma

157 Round of 16: UR Tristan Rifanburg, Binghamton over No. 14 Colin Heffernan, Central Michigan

174 Round of 16: No. 17 Keaton Subjeck, Stanford over No. 12 Drew Hughes, Michigan State

197 Round of 16: UR Jacob Seely, Northern Colorado over No. 14 Jeric Kasunic, American

Full results and brackets can be found on FloArena.