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 the Chicago Street Race. 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.

Sage Karam is tying Road Course legend Boris Said and NASCAR Cup Series champion Kurt Busch by making his 30th career Xfinity start this weekend. Image credit: @Team_SHR26 Twitter/X Page
Xfinity Series Starts
Cole Custer: 161st start ties Ward Burton, ranks 96th
Brennan Poole: 142nd start ties Ricky Craven, ranks 113th
A.J. Allmendinger, Kyle Larson & Ryan Ellis: 116th start ties Ken Schrader, ranks 141st
John Hunter Nemechek: 110th start ties Ricky Stenhouse Jr., ranks 153rd
Parker Kligerman: 107th start ties Casey Mears, David Ragan & Justin Haley, ranks 157th
Austin Hill & Josh Bilicki: 99th start ties Tyler Reddick, ranks 169th
Daniel Suarez & Sheldon Creed: 88th start ties Bubba Wallace, ranks 192nd
Blaine Perkins: 61st start ties Danica Patrick, ranks 246th
Sage Karam: 30th start ties Boris Said & Kurt Busch, ranks 350th
*Brad Perez: 10th start!
*Kenko Miura: 1st start!
*Brad Perez and Kenko Miura did not qualify for the race and thus did not make their 10th and 1st start, respectively.

Chris Buescher is making his 313th career Cup start this weekend tying his with a 3-time Road Course Cup winner Ernie Irvan and NASCAR Hall of Famer Junior Johnson for 94th most all-time. Image credit: @RFKracing Twitter/X Page
Cup Series Starts
Brad Keselowski: 541st start ties Clint Bowyer, ranks 40th
A.J. Allmendinger: 438th start ties Elliott Sadler, ranks 61st
Kyle Larson: 350th start!
Chris Buescher: 313th start ties Ernie Irvan & Junior Johnson, ranks 94th
Ross Chastain: 207th start ties Alan Kulwicki, ranks 141st
Chase Briscoe & Justin Haley: 128th start ties A.J. Foyt, ranks 198th
Daniel Hemric: 67th start ties Brendan Gaughan, ranks 282nd