Hi @magoo34 - thanks for asking! Per the eligibility guidelines, in order to be eligible to win a prize, participants:
“must be citizens or permanent residents of the United States (in the case of a Team, the Team must identify a Team Captain who is a citizen or permanent resident of the United States; in the case of an Entity, the Entity shall be incorporated in and maintain a primary place of business in the US).”
Note that non-U.S. citizens can still can still participate or still be on a team that wins a prize if they are on a team with a designated Team Captain who is a U.S. citizen or permanent resident. Note: This summary was edited for clarity on Nov 25, 2024.
For reference, the full list of rules is here.