Time for the Round of 8. Las Vegas kicks off the this round for both the NASCAR Cup and Xfinity Series. Both series visited the track earlier in the season, back when there was a chill in the air. For playoff Las Vegas, the weather will be a bit warmer. With eight drivers (per series) fighting to punch their ticket to the Championship Four, the on-track action should be exciting. Will a playoff driver win this weekend in both races? Could a non-playoff driver play the spoiler and prevent a team from getting the massive advantage from the win? Who were picked this week by the Pit Pass Network crew?
Shout out to the following Pit Pass Network members who had correct predictions last week:
Xfinity Series: Robert Hill Jr
Cup Series: Andy Coffey, Robert Cwick, Tiffany Faw, & Daniel Smith
Andy Coffey

Andy predicts that Austin Hill will sweep the Las Vegas races and clinch his Championship Four spot. Photo by Keenan Hairston/Getty Images
Cup Series
Winner: William Byron
Longshot: Chris Buescher
Disappointment: Ryan Blaney
Xfinity Series
Winner: Austin Hill
Longshot: Parker Kligerman
Disappointment: Sam Mayer
Robert Cwick

Despite entering this round at the bottom, Robert says Ryan Blaney and his playoff beard will win on Sunday to advance to Phoenix. Photo by Jeff Robinson/Icon Sportswire via Getty Images
Cup Series
Winner: Ryan Blaney
Longshot: Tyler Reddick
Disappointment: Alex Bowman
Xfinity Series
Winner: Justin Allgaier
Longshot: Josh Berry
Disappointment: Austin Hill
Tiffany Faw

Based on his recent momentum, Tiffany goes with Justin Allgaier this weekend. Photo by Jeffrey Vest/Icon Sportswire via Getty Images
Cup Series
Winner: William Byron
Longshot: Chris Buescher
Disappointment: Martin Truex Jr
Xfinity Series
Winner: Justin Allgaier
Longshot: Parker Retzlaff
Disappointment: Josh Berry
Jake Finch

Jake believes the Kyle Busch woes will continue in Las Vegas. Photo by James Gilbert/Getty Images
Cup Series
Winner: Austin Dillon
Longshot: Ross Chastain
Disappointment: Kyle Busch
Xfinity Series
Winner: Austin Hill
Longshot: Daniel Dye
Disappointment: Sheldon Creed
Griffin Fuller

Griffin thinks Chandler Smith might be distracted as his name is being floated around in silly season rumors. Photo by Jeffrey Vest/Icon Sportswire via Getty Images
Cup Series
Winner: William Byron
Longshot: Bubba Wallace
Disappointment: Martin Truex Jr
Xfinity Series
Winner: Austin Hill
Longshot: Daniel Hemric
Disappointment: Chandler Smith
Robert Hill Jr

Chris Buescher is a popular longshot pick this week. Robert has picked him as his winner though. Photo by Jeffrey Vest/Icon Sportswire via Getty Images
Cup Series
Winner: Chris Buescher
Longshot: Kyle Busch
Disappointment: Kyle Larson
Xfinity Series
Winner: John Hunter Nemechek
Longshot: Sheldon Creed
Disappointment: Josh Berry
Cash James

John Hunter Nemechek has been the dominate driver in the Xfinity Series this year. Cash has him winning Saturday. Photo by Jeffrey Vest/Icon Sportswire via Getty Images
Cup Series
Winner: Kyle Larson
Longshot: Chris Buescher
Disappointment: Denny Hamlin
Xfinity Series
Winner: John Hunter Nemechek
Longshot: Sam Mayer
Disappointment: Justin Allgaier
Terra Jones

Austin Dillon will continue his down season, according to Terra. Photo by Jeff Robinson/Icon Sportswire via Getty Images
Cup Series
Winner: Ryan Blaney
Longshot: Chris Buescher
Disappointment: Austin Dillon
Xfinity Series
Winner: Josh Berry
Longshot: Kaz Grala
Disappointment: Sam Mayer
Gregory Latham

Despite being eliminated from the playoffs, Gregory is picking Josh Berry to win Saturday. Photo by Jeffrey Vest/Icon Sportswire via Getty Images
Cup Series
Winner: Christopher Bell
Longshot: Kyle Busch
Disappointment: Tyler Reddick
Xfinity Series
Winner: Josh Berry
Longshot: Parker Kligerman
Disappointment: John Hunter Nemechek
Mark Matthews

Mark thinks Ross Chastain will avenge his playoff elimination with a strong run at Las Vegas. Photo by Jeffrey Vest/Icon Sportswire via Getty Images
Cup Series
Winner: William Byron
Longshot: Ross Chastain
Disappointment: Chase Elliott
Xfinity Series
Winner: John Hunter Nemechek
Longshot: Chandler Smith
Disappointment: Sheldon Creed
Casey Melvin

Casey is going with Parker Kligerman to win the Xfinity race this weekend. Photo by James Gilbert/Getty Images
Cup Series
Winner: Denny Hamlin
Longshot: Chris Buescher
Disappointment: William Byron
Xfinity Series
Winner: Parker Kligerman
Longshot: Justin Allgaier
Disappointment: Austin Hill
Justin Poley

Justin says you should look out for Ricky Stenhouse Jr on Sunday. Photo by James Gilbert/Getty Images
Cup Series
Winner: Michael McDowell
Longshot: Ricky Stenhouse Jr
Disappointment: Bubba Wallace
Xfinity Series
Winner: Brandon Jones
Longshot: Brett Moffitt
Disappointment: Josh Berry
Daniel Smith

Although he made it to the Round of 8, Daniel has little faith in Sammy Smith. Photo by Jeff Robinson/Icon Sportswire via Getty Images
Cup Series
Winner: Denny Hamlin
Longshot: Joey Logano
Disappointment: Christopher Bell
Xfinity Series
Winner: Justin Allgaier
Longshot: Josh Berry
Disappointment: Sammy Smith
Jane Waldrop

Will Denny Hamlin’s DNF at the ROVAL carry over to Las Vegas? Jane has a feeling that it will. Photo by Jeffrey Vest/Icon Sportswire via Getty Images
Cup Series
Winner: Kyle Busch
Longshot: Kyle Larson
Disappointment: Denny Hamlin
Xfinity Series
Winner: Sheldon Creed
Longshot: Kyle Weatherman
Disappointment: Parker Kligerman
Chris Wright

Jeb Burton could be on upset watch, if Chris is to be believed. Photo by James Gilbert/Getty Images
Cup Series
Winner: Justin Haley
Longshot: Kevin Harvick
Disappointment: Chase Elliott
Xfinity Series
Winner: Layne Riggs
Longshot: Jeb Burton
Disappointment: Myatt Snider