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 Watkins Glen International. 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 Watkins Glen Daniel Hemric & Jake Garcia make their 83rd career Truck Series start which ties the late Greg Biffle for 72nd most all-time. Image credit: NASCAR Paint Scheme Preview & James Gilbert — Getty Images

Truck Series Starts

Tanner Gray: 150th start! Ranks 29th

Christian Eckes & Timmy Hill: 124th start ties Kevin Harvick, ranks 39th

Ty Majeski: 122nd start ties Austin Hill, ranks 42nd

Daniel Hemric & Jakes Garcia: 83rd start ties Greg Biffle, ranks 72nd

Kris Wright: 57th start ties Brandon Jones, Jeb Burton & Morgan Shepherd, ranks 129th

Toni Breidinger: 31st start ties David Ragan, Jimmy Spencer & William Byron, ranks 219th

Corey LaJoie: 20th start! Ties Elliott Sadler, ranks 303rd

Cole Butcher: 10th start! Ranks 420th

Dystany Spurlock: 1st start!

At Watkins Glen this weekend Brennan Poole makes his 203rd career O’Reilly Series start which ties former O’Reilly and Cup Series Champion, Bobby Labonte for 74th most all-time. Image credit: @TeamAlphaPrime X Page

O’Reilly Auto Parts Series Starts

Brennan Poole: 203rd start ties Bobby Labonte, ranks 74th

Anthony Alfredo: 164th start ties Denny Hamlin, ranks 164th

Kyle Sieg: 127th start ties Matt DiBenedetto, ranks 140th

Blaine Perkins, Harrison Burton & Sammy Smith: 121st start ties Dave Blaney, ranks 148th

Jesse Love: 79th start ties Erik Jones, ranks 218th

Carson Kvapil: 55th start ties Kyle Petty, ranks 269th

Derek White: 23rd start ties Juan Pablo Montoya, ranks 416th

Matt Wilson: 1st start!

This weekend William Byron will become the 107th driver to make 300 career NASCAR Cup Series starts. Image credit: NASCAR Paint Scheme Preview

Cup Series Starts

Denny Hamlin: 733rd start ties Ryan Newman, ranks 16th

Bubba Wallace: 303rd start ties Dick Trickle, ranks 104th

William Byron: 300th start! Ranks 107th

Tyler Reddick: 230th start ties Joe Weatherly, ranks 133rd

Cody Ware: 154th start ties Fonty Flock, ranks 188th

John Hunter Nemechek: 125th start! Ranks 208th

Shane Van Gisbergen: 62nd start ties Glen Wood, ranks 294th

Riley Herbst: 56th start ties Buckshot Jones, ranks 306th