News details
What happened
$50 MLB Polymarket promo code “MASS” upgraded for Red Sox-Orioles, MLB Saturday Before activation, check eligibility, code-entry step, rollover terms, max cashout, and expiry restrictions. Updated Sep 5, 2026, 4:45 PM UTC by the ToTheBrain editorial team. Before activation, confirm eligible account type, code-entry step (web/app), qualifying bet or odds, plus rollover, max cashout, and expiry windows. Verify effective dates and practical impact on withdrawals, limits, and market availability.
Why it matters
Most offers are for new verified accounts. Enter the code at sign-up or in the bonus section (web/app), then verify qualifying bet/odds, wagering, max cashout, and state restrictions. Practical facts: code — MASS; audience — not specified; code step — not specified; requirements — not specified; limits — not specified; geo/expiry — not specified. Practical facts: code — MASS; audience — Most offers are for new verified accounts.
What to watch next
; code step — Before activation, confirm eligible account type, code-entry step (web/app), qualifying; requirements — rollover terms, max cashout, and expiry restrictions; limits — max cashout, and expiry restrictions; geo/expiry — state restrictions.