Sun, Aug 9 04:48 PM

Polymarket Promo Code TSN: Trade $10, Get $20 Bonus for MLB Sunday Predictions

Yahoo Sports•Sun, Aug 9, 2026, 03:09 PM•2 min read

New players can register with Polymarket promo code TSN this weekend and make $10 in MLB predictions to unlock a $20 sign-up bonus.

Source: [Yahoo Sports](https://sports.yahoo.com/articles/polymarket-promo-code-tsn-trade-150928225.html)

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