Prediction Market Promos for Tuesday Offer Over $1,200 in Trading Bonuses for MLB Wild Card Games

Peter Clarke - Senior Editor at Covers.com
Peter Clarke • Senior Editor 16+ years betting experience
Updated: Sep 29, 2026 , 01:40 PM ET • 3 min read

Claim the latest predictions market promos ahead of Tuesday's MLB Wild Card slate, featuring welcome offers from Kalshi, Polymarket and more.

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

Prediction market promos are drawing extra attention as Tuesday's MLB Wild Card slate gets underway. New users can browse the best prediction market apps and download a platform to claim a welcome offer ahead of the day's four games. Signing up unlocks a range of prediction market promos, most of which only require a quick registration and an initial deposit to get started.

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

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Predictions Market Promos for MLB Wild Card

Tuesday's four-game Wild Card slate, including Philadelphia at Atlanta at 2 p.m. ET and Boston at New York at 8 p.m. ET, gives fans several options among the best prediction market sites to get set up before first pitch on September 29. Below are the current welcome offers from some of the best prediction promos available heading into the day's action.


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

Kalshi's current welcome offer is Trade $25, Get $60 for eligible new customers who use Kalshi promo code COVERS60 during registration. The platform lets users trade contracts tied to sports outcomes, politics, economics and other real-world events.

Key terms include:

  • Available in all states except Nevada and Washington.
  • Users must be physically located in an eligible state.
  • The COVERS60 code or an eligible referral link can be used, but not both.
  • Limited to one offer per Kalshi account.
  • Requires a government-issued ID or passport plus a selfie for verification.
  • Requires an initial deposit of at least $10 and at least $25 transacted on Kalshi's Predictions product.
  • The $60 bonus is credited once the $25 transaction requirement is met, regardless of outcome.
  • Bonus credit cannot be withdrawn immediately, must be used on the Predictions product, and expires seven days after being granted.

How to claim the Kalshi offer:

  1. Visit Kalshi and select "Sign Up," then enter the Kalshi promo code COVERS60 during registration.
  2. Provide personal information, including date of birth, phone number, and location, then verify identity with a Social Security number and government-issued ID.
  3. Deposit at least $10 using an available payment method.
  4. Transact at least $25 on Kalshi's Predictions product to satisfy the offer requirement.
  5. Withdraw eligible cash proceeds through the Transfers section once the bonus terms have been met.

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

Polymarket US offers a Deposit $10, Get $50 trading bonus for new users who enter Polymarket promo code COVERS during sign-up. The reward is available in most states, though eligibility requirements apply before it can be claimed.

Key terms include:

  • Available in all states except Nevada.
  • Users must be physically located in an eligible location.
  • Requires entering Polymarket promo code COVERS during registration.
  • Requires proof of identification, including a photo ID and an accompanying selfie.
  • Requires an initial deposit of at least $10.

How to claim the Polymarket offer:

  1. Visit the Polymarket US app, select "Sign Up," and enter promo code COVERS. Registration can be completed using a Google or Apple ID.
  2. Provide a username, full name, date of birth, and address, then complete identity verification.
  3. Deposit at least $10 using a debit card, bank transfer, or wire transfer.
  4. Select an event contract, choose an outcome, and confirm the trade amount to begin trading.
  5. Withdraw eligible funds once they clear, returning to the same funding source used for 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

ProphetX is offering a Trade $50, Earn $75 bonus for new users who register with ProphetX promo code COVERS. The platform features event contracts across sports, politics and culture.

Key terms include:

  • Available in all states plus Washington, D.C., excluding Nevada.
  • Users must be physically present in an eligible location.
  • Requires registering with ProphetX promo code COVERS.
  • Requires a government ID or passport along with a selfie for verification.
  • Requires an initial deposit of $50 or more and at least $50 traded in event contracts.
  • The $75 bonus is credited once the $50 trade requirement is met, regardless of the outcome.
  • The offer is ongoing.

How to claim the ProphetX offer:

  1. Launch the ProphetX app or desktop site and select "Register," then enter promo code COVERS.
  2. Provide personal information, including full name, date of birth, address, Social Security number and phone number, then verify identity with a photo ID.
  3. Deposit at least $50 through the banking section.
  4. Place a trade of at least $50 in an available market.
  5. Use the $75 in bonus funds to continue trading, then withdraw eligible winnings, which are typically processed 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

Novig's current offer is Deposit $10, Get $25 for new users who enter Novig promo code COVERS. The bonus arrives as five Trade Credits worth $5 each.

Key terms include:

  • Available nationwide.
  • Users must be at least 21 years old and use code COVERS during registration.
  • Requires a qualifying deposit of at least $10 and a trade of at least $5.
  • Trade Credits must be used on contracts priced between $0.01 and $0.60 per contract and expire after 30 days.
  • There is no cost to create an account, though funding and a qualifying trade are required to activate the offer.
  • The offer has no listed end date.

How to claim the Novig offer:

  1. Download the Novig app from the App Store or Google Play Store and select "Sign Up."
  2. Provide personal information, including full name, home address, email, and Social Security number, to verify the account.
  3. Enter Novig promo code COVERS during registration.
  4. Deposit at least $10 and place a qualifying 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 promo code

OG.com offers a Trade $25, Get $25 bonus for new users who enter OG promo code COVERS during registration. Trading bonuses depend on meeting specific deposit and trade requirements.

Key terms include:

  • Available in all 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.
  • Requires a minimum deposit of $10 and a qualifying trade of at least $25 for the full bonus.
  • The qualifying trade must settle within seven days of account verification.
  • Only trades with a probability below 80 percent qualify.

How to claim the OG offer:

  1. Visit OG.com, select "Sign Up," and register using an email address, verifying both email and mobile number.
  2. Complete identity verification with full name, date of birth, address, and the last four digits of a Social Security number, then enter OG promo code COVERS.
  3. Deposit funds using a debit card or another available payment method.
  4. Place a qualifying trade of at least $25 on a market that will settle within seven days.
  5. Withdraw eligible earnings by linking a bank account through Plaid and requesting an ACH 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

Underdog offers a 50 percent deposit match up to $1,000 for new users who enter Underdog promo code COVERS. The match applies to a qualifying first deposit and comes with a playthrough requirement.

Key terms include:

  • Requires a minimum deposit of $10 to qualify for the match.
  • The match is capped at $1,000, requiring a $2,000 deposit to reach the maximum.
  • Bonus credit can take up to 72 hours to appear after the qualifying deposit resolves.
  • Users must complete 1x the value of the deposit plus bonus in qualifying entries within 14 days.
  • Unused promotional balance can be forfeited if the playthrough is not completed within 14 days.
  • Only one available promotion can be selected if a "Choose Your Offer" option appears.

How to claim the Underdog offer:

  1. Register for a new account and enter Underdog promo code COVERS in the promo code field.
  2. Complete identity verification, including personal and location information.
  3. Deposit at least $10 to trigger the 50 percent match, up to $1,000.
  4. Use the bonus entries, once issued, on eligible Prediction Picks or Combo entries.
  5. Complete the required 1x playthrough within 14 days to qualify the promotional balance.

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

Crypto.com's current offer is Play $5, Get $50 in bonus entries for new users, with no Crypto.com promo code required to activate the reward. The bonus arrives in CRO, the platform's native cryptocurrency, after a qualifying deposit.

Key terms include:

  • 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.
  • Requires entering personal information and providing proof of identification.
  • Requires a minimum initial deposit of $10, with Crypto.com matching the stake up to $50.
  • The offer is ongoing with no listed expiration date.

How to claim the Crypto.com offer:

  1. Download the Crypto.com app from the App Store or Google Play Store and begin registration.
  2. Complete identity verification by confirming a phone number and providing a valid government-issued ID.
  3. Deposit at least $10 using a supported fiat or cryptocurrency payment method.
  4. Navigate to the "Sports" tab, choose an available market, and place a prediction.
  5. Withdraw eligible winnings through the "Transfer" section after the event concludes.

These prediction market promos give fans several ways to get involved before Tuesday's MLB Wild Card slate begins. Each platform carries its own terms, so reviewing the requirements above before signing up is recommended. Comparing the best prediction market sites ahead of the September 29 games can help fans find the offer that best matches how they plan to trade.


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.

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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.

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