[1] NASCAR was rumored to be in exploratory conversations with city officials around opening a real version of the virtual course as early as March 2021.

[2] On July 19, 2022, the Grant Park 220 was announced as part of the 2023 NASCAR Cup Series, replacing the Kwik Trip 250 at Road America.

[7] NASCAR was reported to have negotiated a $500,000 flat fee for the course, plus an additional $2 per ticket sold to the event and 15% of all merchandise, food, and beverage sales.

[10] Concerts scheduled as part of the race weekend event, including performances from The Chainsmokers and Miranda Lambert, were canceled due to the weather.

[3] The layout is similar to the version used in 2021 for the eNASCAR iRacing Pro Invitational Series, with minor differences in the lanes that are used in turns 4, 5, 10, and 11.