FC Barcelona vs. Feyenoord Rotterdam: O/U 4.5

Kalshi — primary rule

If over 4.5 goals are scored in the Barcelona vs Feyenoord professional Champions League soccer game originally scheduled for Sep 9, 2026 after 90 minutes plus stoppage time (does not include extra time or penalties), then the market resolves to Yes.

Polymarket — resolution criteria

In the upcoming UEFA Champions League game between FC Barcelona and Feyenoord Rotterdam, scheduled for September 9 at 12:45 PM ET: This market will resolve to "Over" if FC Barcelona and Feyenoord Rotterdam combine to score 5 or more goals in this game. If the combined total is less than 5, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50–50. If the game is started but not completed, this market will resolve according to the official final score published on uefa.com. This market refers only to the outcome within the first 90 minutes of regular play plus stoppage time. The primary resolution source for this market is the official statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 2 hours after the event's conclusion, data from Flashscore may be used; if Flashscore data is unavailable, data from Sofascore may be used; if neither is available, a consensus of credible reporting may be used instead. All markets will settle based on the official final result as recognized by the governing body or event organizers. Revisions to officially declared final scores made after market resolution will not be accounted for in determining the outcome.