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 Kansas 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 Kansas Brennan Poole makes his 200th career O’Reilly Series start which is good for 75th most all-time. Image credit: NASCAR.com Paint Scheme Preview
O’Reilly Auto Parts Series Starts
Josh Williams: 257th start ties Brad Keselowski, ranks 42nd
Brennan Poole: 200th start! Ranks 75th
Anthony Alfredo: 161st start ties Ward Burton, ranks 102nd
Austin Hill: 156th start ties Austin Dillon, ranks 109th
Kyle Sieg: 124th start ties Terry Labonte, ranks 142nd
Blaine Perkins, Harrison Burton & Sammy Smith: 118th start ties Brett Moffitt, ranks 150th
William Sawalich: 44th start ties Bill Elliott, ranks 306th
Dawson Cram: 42nd start ties Rusty Wallace & Travis Pastrana, ranks 318th

At Kansas this weekend Bubba Wallace makes milestone career start number 300 in the NASCAR Cup Series. Image credit: NASCAR.com Paint Scheme Preview
Cup Series Starts
Brad Keselowski: 602nd start ties James Hylton, ranks 34th
Bubba Wallace: 300th start! Ranks 106th
Tyler Reddick: 227th start ties Marcos Ambrose, ranks 135th
Christopher Bell: 225th start! Ranks 138th
Austin Cindric: 160th start ties Cotton Owens & Ron Bouchard, ranks 181st
Cody Ware: 151st start ties B.J. McLeod, ranks 189th