Cup Series: William Byron wins

If William Byron finishes first in the main race originally scheduled for Nov 1, 2026 at the 2026 Xfinity 500, then the market resolves to Yes. Important information: NASCAR races will be paid out after the final race results have been posted by NASCAR. Determinations are not based on provisional results, we appreciate your patience. If William Byron retires, is disqualified, or otherwise is not classified as a finisher in the race, the market for that competitor resolves to No. If the race is postponed but begins within 48 hours of its originally scheduled start time, the market will remain open and resolve based on the official final result. If the race is cancelled or not started within 48 hours of its originally scheduled start, all markets will resolve to a fair price. Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.