Sunday Prediction Market Promos for NFL Week 3 Offer Over $1,200 in Trading Bonuses

Peter Clarke - Senior Editor at Covers.com
Peter Clarke • Senior Editor 16+ years betting experience
Updated: Sep 25, 2026 , 07:40 AM ET • 3 min read

Write a sentence or two that entices people to learn about the PRIMARY KEYWORD and to bet on the assigned event.

Claim prediction market welcome bonuses by signing up today!
Photo By - Claim prediction market welcome bonuses by signing up today!

Bettors searching for predictions market promos ahead of NFL Week 3 Sunday Games can download several platforms before kickoff. These prediction market promos let new users trade event contracts tied to Sunday's slate, including matchups like Buffalo hosting Los Angeles and Baltimore facing Dallas in Rio de Janeiro. Compare offers across the best prediction market apps before Sunday, September 27, and pick the platform that fits your trading style.

Our best prediction market promos

Top 8 Prediction Markets Welcome Offers Claim Now
Kalshi $60 Trading Bonus Claim $60 with code 'COVERS60'
Polymarket Deposit $10, Get $50 Bonus Claim $50 with code "COVERS"
ProphetX Trade $50, Earn $75 Claim $75 with code "COVERS"
Novig Deposit $10, Get $25 Claim $25 with code "COVERS"
OG.com Trade $25, Get $25 Bonus Claim $25
Underdog 50% Deposit Match up to $1,000 Claim $1,000 with code "COVERS"
Crypto.com Unlock $50 Bonus Claim $50

Enjoying Covers content? Add us as a preferred source on your Google account Add as a preferred source on Google

NFL Week 3 Sunday Games Prediction Market Promos

Sunday's Week 3 schedule spans early AFC matchups, Seattle's visit to Washington, and the Baltimore-Dallas game in Rio de Janeiro, giving new users plenty of markets to explore before kickoff. The platforms below are among the best prediction market sites, and each offers one of the best prediction market promos available to new users ahead of the Sunday, September 27, slate.


No. 1: Kalshi

Trade $25, Get $60 Bonus

Certain limitations apply. The offer is available to new users only, subject to the terms and conditions specified by Kalshi. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.

Kalshi Promo Code

Enter the Kalshi promo code COVERS60 to claim the Trade $25, Get $60 sign-up offer available to eligible new customers. Kalshi lets users trade contracts on sporting events, politics, breaking news, economics and pop culture. The bonus is credited after a qualifying trade, regardless of whether that trade wins or loses.

  • Available in all states except Nevada and Washington.
  • Users must be physically present in an eligible location.
  • New customers may use the promo code or an eligible referral link, but not both.
  • Limited to one offer per Kalshi account.
  • A government-issued ID or passport, plus a selfie, is required for verification.
  • Requires an initial deposit of at least $10 and a transaction of at least $25 on Kalshi's Predictions product.
  • Bonus credit cannot initially be withdrawn, must be used on the Predictions product, and expires seven days after being granted.
  1. Register on Kalshi and enter the promo code COVERS60 during sign-up.
  2. Complete identity verification with a photo ID and selfie, along with personal details such as date of birth and phone number.
  3. Deposit at least $10 into the Kalshi wallet using an available payment method.
  4. Transact at least $25 on Kalshi's Predictions product to trigger the bonus.
  5. Withdraw eligible cash proceeds through the Transfers section once funds become available.

No. 2: Polymarket

 Polymarket Logo 

Get $50 With Code COVERS

18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See https://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.

Polymarket Promo Code

Enter the Polymarket promo code COVERS in most U.S. states to claim a $50 welcome offer. Unlike traditional sportsbook promotions, the Polymarket bonus requires an initial deposit of $10 to unlock the reward.

  • Available in all states except Nevada.
  • Users must be physically located in an eligible location.
  • Registration requires the promo code COVERS to trigger the offer.
  • Identity verification includes a photo ID and an accompanying selfie.
  • An initial deposit of $10 is required.
  1. Visit the Polymarket US app, click "Sign Up," and enter promo code COVERS.
  2. Register using an email, Google account, or Apple ID, then complete identity verification.
  3. Deposit at least $10 using a debit card, ACH transfer, or wire transfer.
  4. Select an event contract, choose an outcome, and confirm the trade amount.
  5. Withdraw eligible funds once they clear, using the same method as the original deposit.

No. 3: ProphetX

 ProphetX Logo 

Earn $75 With Code COVERS

Federally regulated. Live nationwide. Trading sports event contracts involves substantial risk of loss and is not appropriate for all investors. Past results are not necessarily indicative of future results. You should consider whether trading is appropriate for you in light of your financial circumstances. ProphetX is a CFTC-regulated designated contract market. Full risk disclosure available at prophetx.co/risk.

ProphetX Promo Code

Register with the ProphetX promo code COVERS to claim a $75 trading bonus. New users must make an initial deposit of at least $50 and trade that amount in event contracts to unlock the reward, regardless of the outcome of those trades.

  • Available in all states plus Washington, D.C., excluding Nevada.
  • Users must be physically present in an eligible location.
  • Registration requires the ProphetX promo code COVERS.
  • Identity verification includes a government ID or passport and a selfie.
  • Requires a deposit of $50 or more and $50 in trades to trigger the bonus.
  • The bonus is credited once $50 in trades is completed, win or lose.
  1. Create a ProphetX account via the app or desktop site and enter promo code COVERS.
  2. Provide personal information, including full name, date of birth, and Social Security number, then verify with a photo ID.
  3. Deposit at least $50 through the banking section.
  4. Place trades totaling at least $50 on available event contracts.
  5. Withdraw funds once eligible, with processing typically completed within five business days.

No. 4: Novig

Deposit $10, Get $25

COVERS

Restrictions and eligibility requirements apply. The offer is available to new users only, subject to the terms and conditions specified by Novig. 21+ only. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Novig products are not available in all jurisdictions.

Novig Promo Code

The current Novig promo code offer is Deposit $10, Get $25 using code COVERS. The bonus arrives as five Trade Credits of $5.00 each, usable on contracts priced between $0.01 and $0.60.

  • Users must be at least 21 years old and enter promo code COVERS at sign-up.
  • A qualifying deposit and trade are required to activate the offer.
  • A minimum deposit of $10 and a minimum trade of $5 are required.
  • Trade Credits expire after 30 days.
  • Available nationwide, and the offer is currently ongoing.
  1. Download the Novig app from the App Store or Google Play Store and select "Sign Up."
  2. Provide personal information, including full name, address, email, and Social Security number, to verify the account.
  3. Enter Novig promo code COVERS during registration.
  4. Deposit at least $10 and complete a trade of at least $5 to receive the Trade Credits.

No. 5: OG.com

OG.com Logo

Trade $25 & Get $25

 

Campaign period: Extended. The promotion expires seven days after account verification, and only events settled within this seven-day window are eligible. Each qualifying trade must be worth at least $10 and have a probability below 80%. Trades at or above 80% probability will not count. Trades are counted only after they have settled, and trades placed using rewards are not eligible.

OG.com Promo Code

New users can enter the OG promo code COVERS during registration to claim up to $25 in trading bonuses after trading $25.

  • Available in all U.S. states except New York and Arizona; users in Illinois, Massachusetts, Maryland, Michigan, New Jersey, Nevada, and Ohio can claim the bonus but cannot use it for sports trading.
  • Users must be physically located in an eligible state.
  • A minimum deposit of $10 is required, and a $25 trade is required for the full bonus.
  • The qualifying trade must settle within seven days of account verification.
  • Only trades with a probability below 80% qualify.
  1. Visit OG.com, click "Sign Up," and enter promo code COVERS.
  2. Verify email and mobile number, then complete identity verification with personal details.
  3. Deposit funds using a debit card or another available payment method.
  4. Place a qualifying trade of at least $25 on a market with a probability below 80% that will settle within seven days.
  5. Withdraw earnings by linking a bank account through Plaid and requesting a transfer.

No. 6: Underdog

50% Deposit Match up to $1,000
Code: COVERS

Must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog Fantasy operates. Terms apply. Offer not valid in MD, MI, NJ, NY, OH, and PA. Concerned with your play? Call 1-800-MY-RESET or 1-800-GAMBLER or visit www.ncpgambling.org; AZ: 1-800-NEXT-STEP (1-800-639-8783) or text NEXT-STEP to 53342; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369).

Underdog Promo Code

The Underdog promo code COVERS unlocks a 50% deposit match up to $1,000 for eligible new customers.

  • A minimum deposit of $10 is required to qualify.
  • The match is capped at $1,000, requiring a $2,000 deposit for the maximum bonus.
  • Bonus credit can take up to 72 hours to appear after a deposit resolves.
  • Users must complete 1x the value of the deposit plus bonus within 14 days of the bonus being issued.
  • Any unqualified promotional balance can be forfeited after the 14-day turnover period.
  • Bonus funds cannot be applied to entries with a payout multiplier below 2x.
  1. Register for a new Underdog account through an eligible link.
  2. Enter promo code COVERS in the designated field and confirm the offer displayed at sign-up.
  3. Complete identity verification, including personal and location information.
  4. Deposit at least $10 to trigger the match, up to a $2,000 deposit for the maximum bonus.
  5. Complete the required playthrough on eligible Prediction Picks or Combo entries within 14 days.

No. 7: Crypto.com

Spend $5, Get $200

Restrictions and eligibility requirements apply. The offer is available to new users only, subject to the terms and conditions specified by Crypto.com. 18+ only. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Crypto.com products are not available in all jurisdictions.

Crypto.com Promo Code

The Crypto.com promo code offer applies automatically through an eligible sign-up link, matching a deposit up to $50 in CRO.

  • Available in most states plus Washington, D.C., except Arkansas, Arizona, Connecticut, Illinois, Louisiana, Massachusetts, Maryland, Michigan, Nevada, New York and Ohio.
  • No referral code is required to access the offer.
  • Registration requires personal information and proof of identification.
  • A minimum initial deposit of $10 is required to receive a matching bonus of up to $50.
  • The offer is ongoing and has no expiration date.
  1. Download the Crypto.com app from the App Store or Google Play and register through an eligible link.
  2. Complete KYC verification by confirming a phone number and providing a government-issued ID.
  3. Deposit at least $10 using a supported fiat or cryptocurrency payment method.
  4. Navigate to the Sports tab within the predictions marketplace and place a trade on an available contract.
  5. Withdraw winnings through the Transfer section once the event concludes.

New users have plenty of options to explore prediction market promos before the NFL Week 3 Sunday Games kick off on Sunday, September 27. Each platform listed carries its own terms, deposit minimums, and qualifying requirements, so reviewing the details above before registering is recommended. Comparing offers across these prediction market promos can help fans find the sign-up bonus that best fits how they plan to trade throughout the NFL season.


Affiliate Disclosure: Our team of experts has thoroughly researched and handpicked each product that appears on our website. We may receive compensation if you sign up through our links.

Pages related to this topic

Peter Clarke - Covers
Senior Editor

Peter Clarke is dedicated to keeping bettors informed about the biggest sports betting events, such as the Super Bowl and March Madness, and the best way to cash in on sportsbook promos. He's also always on top of the latest welcome offers from the biggest sportsbooks, so he can share the best deals and the most exciting games to use them on every day.

Popular Content

Covers is verified safe by: Evalon Logo GPWA Logo GDPR Logo GeoTrust Logo Evalon Logo