Monday Night Baseball Action: Activate Caesars Sportsbook Promo Code WSNDYW Before White Sox vs. Mariners First Pitch for Up to Max $250 Value

The Chicago White Sox travel to Seattle to face the Mariners on Monday, May 18, 2026, at 9:40 PM. Fans looking to add some action to this American League matchup can use the Caesars Sportsbook promo code WSNDYW to claim the welcome offer. This promotion features a Bet $1, Double Your Winnings 10x package that can bring you up to a max value of $250 in profit boosts.

Caesars Sportsbook Promo Code WSNDYW for May 18, 2026

When you register a new account and enter the Caesars Sportsbook promo code WSNDYW, you get access to a welcome promotion built around profit boosts. Instead of a flat lump sum of bonus bets, this offer gives you ten individual 100% profit boost tokens. Each token lets you double your winnings on a single bet, with a maximum wager limit of $25 per boost, leading to a total potential value of up to $250.

This promotion is available to new users in legal betting states where the app operates. Eligible states include AZ, CO, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MO, NC, NJ, NY, OH, PA, TN, VA, WV, WY, and Washington, D.C. The standard offer applies across these regions, but regulations can vary slightly by state, and Nevada is excluded from this promotion.

Caesars Sportsbook Promo Code Terms and Conditions

• You must be 21 years of age or older to participate.

• A minimum initial deposit of $10 is required to fund your new account.

• You must place a real cash bet of at least $1 on any market with odds of -10000 or longer.

• Once the ten profit boost tokens are credited to your account, you have 14 days to use them before they expire.

• Additional winnings generated from the 100% profit boosts are paid out in cash, which can be withdrawn without further playthrough requirements.

Read our Caesars Sportsbook review and get more info.

Featured Matchup: White Sox vs. Mariners

The Chicago White Sox arrive at T-Mobile Park looking to build on their 24-22 record. Chicago has been finding some rhythm lately, sitting in second place in their division. The offense has leaned on slugger Munetaka Murakami, who enters the game with 17 home runs and 32 RBIs. On the mound, the White Sox have seen solid production from Davis Martin, who already has 6 wins and 59 strikeouts on the year. They will try to keep that momentum going against a tough Seattle pitching staff.

The Seattle Mariners are looking to reverse a recent skid, entering Monday with a 22-26 record after dropping three straight games. Despite the tough stretch, Randy Arozarena has been a major bright spot for Seattle, carrying a .301 batting average with 52 hits. Seattle will need their bats to wake up to protect their home field. It is a perfect spot to consider applying the Caesars Sportsbook promo code as these two regular-season teams test each other's depth.

Caesars Sportsbook Odds for White Sox vs. Mariners

The table below shows the current betting lines for the matchup.

Odds courtesy of Caesars Sportsbook. Taken on Monday, May 18, 2026, at 7:30 AM EDT. Lines are subject to change before first pitch.

Bet $1, Double Your Winnings 10x

How to Use Caesars Sportsbook Promo Code for White Sox vs. Mariners

• Consider underdogs for higher potential payouts: Because the Caesars Sportsbook promo code doubles your winnings, using a boost token on a plus-money option like the White Sox moneyline (+150) mathematically maximizes the extra value you can get out of a successful bet compared to backing a heavy favorite.

• Look at the run line to balance risk and return: If you think the Mariners will bounce back but want a better return than the moneyline, backing Seattle at -1.5 (+135) with a profit boost increases your potential payout significantly if they win by two or more runs.

• Manage your token bankroll across different markets: You get 10 individual tokens, so you do not have to put everything on one outcome. You can place a $25 bet on the Under 7.0 (-105) and use another token on a player prop, keeping your stakes responsible and spread out.

How to Watch White Sox vs. Mariners

• Date & Time: Monday, May 18, 2026, at 9:40 PM EDT

• Location: T-Mobile Park, Seattle, Washington

• TV Channel: CHSN (Chicago local), Mariners.TV (Seattle local)

• Streaming: MLB.TV, Fubo