The Polymarket sign up bonus ACTION gives eligible new users a $25 trading bonus after a $10 deposit, and Thursday Night Football gives traders an immediate NFL market to consider. Seattle visits Denver tonight at 8:15 p.m. ET on Prime Video, with both teams entering at 3-2.
New users can claim the Polymarket sign up bonus with the promo code ACTION, then use the $25 trading bonus on Seahawks vs. Broncos or another eligible market. Polymarket had the Broncos trading around 42¢ to win on the Seahawks vs. Broncos board Wednesday, and that is my preferred NFL market for Thursday night.
Week 6 also opens a full weekend of football markets, making the reward useful beyond Thursday night. The current NFL prediction market promos show how the Polymarket offer compares with other football-specific welcome bonuses.
Polymarket Sign Up Bonus Full Offer Details
| Detail | Value |
|---|---|
| New User Offer | Deposit $10, Get a $25 Trading Bonus! |
| Promo Code | ACTION |
| Offer Type | Deposit bonus |
| Minimum to Qualify | $10 deposit |
| Reward | $25 trading bonus |
| Available States | AK, AL, AR, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IN, KS, KY, LA, ME, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV, WY |
| Last Verified | Oct. 12, 2026 |
Colorado is included among the eligible jurisdictions, so users in Denver can claim the Polymarket sign up bonus before kickoff if they meet the promotion requirements.
How the Polymarket Sign Up Bonus Works
Deposit at least $10 with Polymarket sign up bonus ACTION attached to your account and Polymarket issues a $25 trading bonus under the offer terms. The reward is tied to the qualifying deposit rather than the result of an opening position with this prediction market promo.
Polymarket operates as a prediction-market exchange where event contracts trade between buyers and sellers. Contracts are generally priced between 1¢ and 99¢ and settle at $1 if the listed outcome occurs or $0 if it does not.
That makes the price a quick estimate of market expectations. A Broncos winner contract trading at 42¢, for example, reflects an implied probability around 42%.
Unlike a traditional sportsbook wager, positions can also be sold before settlement when there is sufficient liquidity. The bid and ask can move throughout the game as traders react to the score, injuries and game situation.
That trading structure is one of the main differences between prediction markets and sportsbooks. Our Polymarket review covers the platform in more detail, while the guide on how to bet on Polymarket explains contract pricing, order types and selling positions.
Seahawks vs. Broncos Polymarket Prices
Prices below were pulled from Polymarket at 10:44 a.m. ET on Wednesday, Oct. 14. They can move before kickoff, so check the live market before entering a position.
| Market | Contract | Price | $100 Returns About |
|---|---|---|---|
| Winner | Broncos to win | 42¢ | $238 |
| Winner | Seahawks to win | 59¢ | $169 |
| Spread | Broncos +2.5 | 49¢ | $204 |
| Spread | Seahawks -2.5 | 52¢ | $192 |
| Total | Over 40.5 points | 51¢ | $196 |
| Total | Under 40.5 points | 51¢ | $196 |
The 40.5 total is essentially priced as a coin flip, which fits a matchup where both defenses have been more dependable than the opposing offenses.
Seahawks vs. Broncos Prediction
Seattle has the better defensive profile, but I prefer Denver at the current Polymarket price.
- Seahawks vs. Broncos prediction: Broncos to win
The Seahawks have struggled to sustain offense. Sam Darnold threw for 168 and 195 yards in his last two starts and took eight sacks across those games. Seattle also turned the ball over four times against San Francisco, including three fumbles. The running game has not consistently taken pressure off Darnold, either, which creates a difficult setup against a Denver front that recorded five sacks against Justin Herbert last week.
Denver's offense has its own limitations. Bo Nix has averaged fewer than 6.0 yards per attempt in four of five starts, and the Broncos have had trouble staying on the field on third down. That is why I expect a lower-possession game decided by field position and one or two high-leverage plays rather than sustained offense.
The biggest concern for Denver is the secondary. Pat Surtain II, Talanoa Hufanga and Riley Moss have all dealt with injuries entering the short week, so check the NFL injury report before entering a position. Also, refer to NFL weather reports to see how they can affect the game conditions.
Seahawks vs. Broncos Prediction
- Seahawks vs. Broncos prediction: Broncos to win at 42¢ ($100 returns about $238)
At 42¢, Denver is priced as the less likely winner despite playing at home in a matchup I see as close to a coin flip.
The Broncos pass rush gives them a direct way to attack Seattle's biggest offensive weakness, while a low-scoring game reduces the number of possessions Seattle has to create separation.
Polymarket also offers a Broncos +2.5 contract around 49¢. That is the more conservative position if you want protection against a one- or two-point Seattle win, but I prefer paying less for the outright Denver contract.
The Under 40.5 at roughly 51¢ follows the same overall read, but the Broncos winner market offers the better return if Denver controls field position and creates the decisive turnover.
How to Claim the Polymarket Sign Up Bonus ACTION Today
- Click the Polymarket promo code ACTION link to open Polymarket's registration page with the offer attached.
- Create your account and enter the required personal information.
- Complete identity verification.
- Deposit at least $10 using an eligible funding method.
- Receive the $25 trading bonus and use it on Seahawks vs. Broncos or another available market.
Polymarket vs. Kalshi
Polymarket and Kalshi both offer event contracts, but their markets, pricing and promotional structures can differ.
New users considering both platforms can compare the current Kalshi promo code with the Polymarket sign up bonus, while our Kalshi vs. Polymarket breakdown covers the differences between the two exchanges.
Polymarket Refer-a-Friend: Up to $350 More
Polymarket also offers referral rewards separate from the initial Polymarket sign up bonus.
Eligible users can receive a $25 trading credit for each qualifying referral. You can make up to 14 referrals, for a maximum of $350.
To qualify, the referred user must register through the applicable username or invite link, complete identity verification and deposit at least $10.
Terms and Conditions
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See polymarket.com/tos for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.
