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 Iowa 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 Brennan Poole ties reigning Cup Series champion, Joey Logano, by making his 179th career Xfinity Series start. Photo by David Buono — Icon Sportswire via Getty Images
Xfinity Series Starts
Ross Chastain: 213th start ties Blake Koch, ranks 60th
Brennan Poole: 179th start ties Joey Logano, ranks 86th
Sam Mayer: 139th start ties Noah Gragson, ranks 118th
Sheldon Creed: 125th start! Ranks 139th
Josh Bilicki: 122nd start ties Parker Kligerman, ranks 142nd
Kyle Sieg: 103rd start ties Ryan Truex, ranks 171st
Blaine Perkins, Harrison Burton & Sammy Smith: 97th start ties Josh Berry, ranks 178th
Mason Massey: 66th start ties Ty Gibbs, ranks 241st
Jesse Love: 55th start ties Kyle Petty, ranks 266th
Taylor Gray: 35th start ties Shane Van Gisbergen, ranks 340th
Nick Sanchez: 30th start ties Boris Said & Kurt Busch, ranks 360th
Connor Zilisch & William Sawalich: 25th start!
Tyler Tomassi: 1st start!

This weekend John Hunter Nemechek makes his 100th career Cup Series start. Photo by Chris Graythen — Getty Images
Cup Series Starts
Joey Logano: 602nd start ties James Hylton, ranks 33rd
Chris Bueschcer: 352nd start ties Ned Jarrett, ranks 83rd
Bubba Wallace: 278th start ties Ricky Craven, ranks 109th
William Byron: 275th start! Ranks 112th
Tyler Reddick: 205th start ties Robert Pressley, ranks 146th
Christopher Bell: 203rd start ties Phil Parsons, ranks 148th
Chase Briscoe & Justin Haley: 167th start ties Sam Hornish Jr., ranks 174th
John Hunter Nemechek: 100th start! Ranks 227th