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 Dover Motor 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 Parker Retzlaff is tying a couple Cup winners, including a 3x Cup champion and a Daytona 500 champion in Geoff Bodine, Michael McDowell and Tony Stewart by making his 94th career Xfinity start. Image credit: @TeamAlphaPrime X Page
Xfinity Series Starts
Josh Bilicki: 120th start ties Sam Hornish Jr., ranks 145th
Blaine Perkins, Harrison Burton & Sammy Smith: 95th start ties Darrell Waltrip, ranks 180th
Parker Retzlaff: 94th start ties Geoff Bodine, Michael McDowell & Tony Stewart, ranks 185th
Kaz Grala: 79th start ties Erik Jones, ranks 216th
Connor Zilisch & William Sawalich: 23rd start ties Juan Pablo Montoya, ranks 408th
Rajah Caruth: 20th start ties Donnie Allison, ranks 434th
Jake Finch & Lavar Scott: 1st start!

Joey Logano is making career Cup start number 600 this weekend at Dover. Photo by Andrew Mordzynski — Icon Sportswire via Getty Images
Cup Series Starts
Denny Hamlin: 706th start ties Rusty Wallace, ranks 19th
Joey Logano: 600th start! Ranks 34th
Chris Buescher: 350th start! Ranks 84th
Alex Bowman: 346th start ties Reed Sorenson, ranks 85th
Daniel Suarez: 308th start ties Bobby Isaac, ranks 101st
Bubba Wallace: 276th start ties Corey LaJoie, ranks 110th
Tyler Reddick: 203rd start ties Phil Parsons, ranks 147th
Cody Ware: 127th start ties Paul Goldsmith, ranks 204th