Billboard 200 #1 Album Week of February 21

Unified Resolution Criteria (Consistent across platforms)

Core resolution logic:

• Resolution occurs when Billboard publishes the Billboard 200 chart dated Week of February 21, 2026
• The album ranked #1 on that chart is the sole winner across all markets in this group
• All other outcomes (named albums and catch-all categories) resolve No
• Polymarket includes a catch-all 'another album' outcome for any #1 not explicitly listed
• Kalshi lists 14 specific named albums; any #1 not on that list would resolve No for all Kalshi outcomes

Edge cases & Clarifications:

• Chart Publication Delay: If Billboard does not publish the Week of February 21, 2026 chart within 14 calendar days of the expected release date, Polymarket resolves to Other. Kalshi does not specify a fallback; assume standard market cancellation/no-resolution protocol.
• Tie or Shared #1: Billboard's methodology produces a single #1 album per week. If a tie occurs, Billboard's published ranking determines the official #1.
• Album Not Listed on Either Platform: On Polymarket, such an album would resolve Yes under the 'another album' outcome. On Kalshi, all 14 named outcomes would resolve No, leaving no Yes outcome (market would be unresolved or cancelled).
• Chart Methodology Change: Both platforms reference the official Billboard 200 chart as published; any changes to Billboard's methodology are outside market control and the published chart is the binding source.