Sports Illustrated says the Polymarket promo code SIBONUS unlocks a $25 trading bonus for Buffalo vs. Minnesota Monday Night Football on Monday, November 9. The offer starts with a $10 deposit and is designed for users who want to trade around the matchup as soon as it opens.
The code has to be entered during account registration, and the bonus only becomes available after a user's first real-money trade on an eligible market. That sequence matters because the $25 is not handed over as free cash at signup. It is activated through the account flow, then unlocked through trading.
That is why the timing is drawing attention now. The promotion is tied to Buffalo vs. Minnesota, which makes it a matchup-specific offer rather than a broad sitewide deal. For users searching the code today, the practical question is whether they can qualify before the window closes and whether they are in the right place to claim it.
The location rule is the catch. The offer applies in most U.S. states, but not in Nevada, and a user must be physically located in an eligible area when claiming it. That means the same registration steps do not work everywhere, even if the code is live and the deposit is ready.
There are other requirements built into the process. A valid photo ID is required during registration, and accepted payment methods include debit card, bank transfer, Apple Pay, and crypto options. The promotion also extends to iOS and Android users who register through qualifying campaigns, but the bonus cannot be applied retroactively after account creation.
Once the $10 deposit is in and the first real-money trade is complete, the $25 bonus can be used for additional trades. After the 1x playthrough requirement is met, profits generated from the bonus can be withdrawn as cash. In practice, that makes the offer straightforward to start and more restrictive to finish: users must qualify at the right time, in the right place, and then trade through the bonus before they can take out any profit.
The broader setup fits a pattern of prediction market promos tied to Buffalo vs. Minnesota Monday Night Football, with age and jurisdiction limits shaping who can take part. The remaining question is not whether the code exists, but how many users can actually clear the registration, location, and trading steps before the matchup-driven offer runs its course.
