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