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Prediction market on polymarket_us. If William Byron wins the NASCAR Cup Series Championship in the 2026 NASCAR Cup Series season, scheduled to conclude November 8, 2026, this market settled to Yes. Outcome sourced from the relevant governing body or event organizers. If the announcement is postponed or delayed within two weeks of the original date, the market will remain open and will settle once the announcement is complete. Cancellation or rescheduling beyond the two-week window may result in resolution at the last fair market price. If William Byron is eliminated from contention, the market settled to No.
Resolves: 11/22/2026.