Formula 1 has enjoyed a continued rise in popularity in recent years, largely due to the Netflix Drive to Survive series.
Both the Miami and Las Vegas Grands Prix were added to the calendar off the back of this, which means there is now three races in the US alongside the Circuit of the Americas - in stark contrast to none in North America as recently as 2011.
Could a fourth race follow? F1 bosses have recently registered trademarks for a race in the city of Chicago. Located in the state of Illinois, it is one of the major cities near the states of Michigan and Wisconsin.
The trademarks specifically make reference to a 'Grand Prix of Chicago' with it sitting relatively close to the city of Detroit in Michigan, where both General Motors and Ford are located.
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Could it appear in the future?
The registered trademarks by F1 themselves indicates that it is possible a Chicago Grand Prix will be setup by the commercial rights holders themselves, as was the case with Miami and Las Vegas.
These trademarks were registered in 2017 and appeared on the calendar in 2022 and 2023 respectively.
There is no certainty that a race could take place in Chicago however, as a trademark for the New York GP was also registered in 2017 but has since not appeared on the calendar.