.Bob Pockrass.FOX NASCAR Insider.The most significant concern of those defending a playoff location in the NASCAR Mug Set is actually that a motorist that isn't from another location in the mix safes in to the playoffs along with an upset victory.Hello, Austin DillonDillon, who was actually 32nd in the status entering Richmond, put themself in the playoffs with a triumph-- albeit a disputable one-- on Sunday, the 23rd ethnicity of the 26-race frequent season.Following Richmond, three nationalities continue to be to put the playoff ground: Michigan, Daytona and also Darlington.The NASCAR playoffs feature 16 chauffeurs-- the regular-season champ and afterwards the following 15 motorists positioned through wins with ties violated by points.With the leading seven motorists in the status all contending minimum one victory, the regular-season champ likely will be among the champions. Thirteen vehicle drivers have actually succeeded this year, implying approximately 3 locations may be on call on aspects. So who's in, that's on the bubble and that is at win-at-all-costs? Those thirteen drivers along with success who remain in: Kyle Larson, Denny Hamlin, William Byron, Christopher Bell, Ryan Blaney, Chase Elliott, Tyler Reddick, Brad Keselowski, Alex Bowman, Joey Logano, Daniel Suarez, Austin Cindric as well as Austin Dillon.The bubble modified dramatically along with Dillon's victory as now at most merely 3 locations-- not four as prior to the Richmond race-- may be readily available to winless motorists. Each Chris Buescher and Ross Chastain dropped beneath the cutline while Bubba Wallace transferred to the good side of being just one of the 3 winless drivers along with the most points.Joey Logano covers Austin Dillon's overtime relocate to succeed the Cook Out 400 Therefore let's get to the points: There are actually 5 winless drivers that would certainly be battling for the current 3 spots accessible exclusively on points.Martin Truex Jr. possesses a 78-point edge on the cutline (currently Buescher as well as Chastain), with 60 aspects on Ty Gibbs, who is actually 15 factors above Wallace. Buescher as well as Chastain, incorporated the status, are 3 factors responsible for Wallace.In various other terms, it is actually visiting be actually a fight to the finish.Buescher gained at Michigan and Daytona in 2014, however those also are actually spots where Wallace customarily has actually managed well. Gibbs still seeks his very first profession Cup win. Chastain is the vehicle driver with one of the most latest experience in playoff tension situations, where he mostly has actually shown he can create traits happen.There are actually 16 various other playoff-eligible chauffeurs who basically face must-win circumstances: Chase Briscoe, Kyle Busch, Todd Gilliland, Josh Berry, Michael McDowell, Carson Hocevar, Noah Gragson, Ricky Stenhouse Jr., Erik Jones, Ryan Preece, Daniel Hemric, Justin Haley, Corey LaJoie, John Seeker Nemechek, Harrison Burton as well as Zane Smith.Bob Pockrass covers NASCAR for FOX Sports. He has actually spent decades dealing with motorsports, including over 30 Daytona 500s, along with stints at ESPN, Sporting Information, NASCAR Setting journal as well as The (Daytona Coastline) News-Journal. Observe him on Twitter @bobpockrass. Get even more from NASCAR Mug Series Follow your faves to receive details concerning games, information and additional.