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  "path": "/betting/2026/07/kalshi-and-polymarket-referral-codes-upgrade-50-bonus-for-july-4th-updated-world-cup-odds.html",
  "publishedAt": "2026-07-04T13:59:00.000Z",
  "site": "https://www.cleveland.com",
  "textContent": "The verified Polymarket and Kalshi invite and promo codes have been upgraded for July 4th — $70 to trade on Polymarket, $20 on Kalshi — with two World Cup knockout matches and a full Independence Day MLB slate live on the board.",
  "title": "Kalshi and Polymarket “referral codes” upgrade $50+ bonus for July 4th; Updated World Cup odds"
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