Below are some potential notable starts being made by drivers this weekend. Notable meaning they will be tied with a driver in number of starts made in that specific series, or the number of starts being made is a significant number that they are reaching in their specific race this weekend at Chicagoland Speedway. Rankings reflect the all-time starts list for that series.
(The image above each series is the driver I find having the most notable start this weekend)

*This will be updated after qualifying for each race if a driver does not make the race.

This weekend at Chicagoland Josh Bilicki will make his 147th O’Reilly Series start which ties NASCAR Hall of Famer, Dale Earnhardt Jr., for 116th most all-time. Image credit: @SSGLR0708 X Page

O’Reilly Auto Parts Series Starts

Jeremy Clements: 550th start! Ranks 1st

Garrett Smithley: 216th start ties Kasey Kahne, ranks 61st

Ryan Ellis: 184th start ties Ron Hornaday Jr., ranks 83rd

Cole Custer: 181st start ties Clint Bowyer, ranks 87th

Sam Mayer: 169th start ties Alex Labbe, ranks 98th

Josh Bilicki: 147th start ties Buckshot Jones & Dale Earnhardt Jr., ranks 116th

Blaine Perkins, Harrison Burton & Sammy Smith: 128th start ties Harry Gant, ranks 139th

Myatt Snider: 116th start ties Ken Schrader, ranks 158th

Chase Elliott: 88th start ties Bubba Wallace & Chase Briscoe, ranks 200th

Jesse Love: 86th start ties Bobby Hamilton & Davey Allison, ranks 205th

Taylor Gray: 66th start ties Ty Gibbs, ranks 243rd

Leland Honeyman: 65th start ties Ryan Newman, ranks 245th

Carson Kvapil: 62nd start ties Ryan Preece, ranks 253rd

Dean Thompson: 55th start ties Kyle Petty, ranks 270th

Dawson Cram & Nick Sanchez: 50th start! Ranks 291st

Rajah Caruth: 42nd start ties Rusty Wallace & Travis Pastrana, ranks 320th

This weekend at Chicagoland Carson Hocevar and Zane Smith make their 100th career Cup Series start! Image credit: @SpireMotorsports & @Team_FRM X Pages

Cup Series Starts

Kyle Larson: 421st start ties Jim Paschal, ranks 68th

Erik Jones: 344th start ties Kenny Wallace, ranks 88th

Ty Dillon: 300th start! Ranks 108th

Ross Chastain: 278th start ties Ricky Craven, ranks 112th

Ryan Preece: 242nd start ties Cotton Owens & Donnie Allison, ranks 125th

Carson Hocevar & Zane Smith: 100th start! Ranks 231st