Activate the FanDuel Sportsbook Promo Code Promotion for Mariners vs. Guardians and Get $350 in Bonus Bets

FanDuel Sportsbook Promo Code for June 28, 2026

This introductory promotion gives new players a chance to establish their sports betting portfolio over their first week on the platform. By utilizing the FanDuel Sportsbook promo code offer, you will receive $50 in bonus bets each day you make a qualifying $5 cash wager for seven consecutive days, adding up to a maximum value of $350.

This offer is active across all legal US states where the platform operates, including Ohio, Arizona, Colorado, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, New Jersey, New York, North Carolina, Pennsylvania, Tennessee, Virginia, West Virginia, and Wyoming.

FanDuel Sportsbook Promo Code Terms and Conditions

Before diving into the baseball action, make sure you understand the small print behind the promotion:

• All users must be at least 21 years old to create an account and participate.

• A minimum first deposit of $5 cash is required after your registration.

• You must place a real cash wager of at least $5 each day for seven consecutive days.

• You receive $50 in bonus bets for each day a qualifying bet is tracked, up to $350 total.

• All awarded bonus bets will expire within seven days of being credited to your balance.

• Bonus bets hold a 1x playthrough requirement and cannot be withdrawn directly as cash.

Find more about this promotional offer in our FanDuel Sportsbook review.

Featured Matchup: Mariners vs. Guardians

This Sunday afternoon contest features two American League squads battling out their summer stretch. Both the Cleveland Guardians (43-40) and Seattle Mariners (42-42) enter this game right around the .500 mark, making every single victory crucial for their respective wildcard or divisional hopes.

The pitching matchup showcases Emerson Hancock (5-4, 3.60 ERA) on the mound for Seattle, while Cleveland answers back with right-hander Gavin Williams (9-4, 3.82 ERA). Williams has been a workhorse for Cleveland this season, stringing together a long run of starts lasting five or more innings. Meanwhile, Seattle's young lineup, featuring stars like Julio Rodriguez, will look to jump on his fastballs early. Cleveland's bats, led by Travis Bazzana and Brayan Rocchio, want to maximize base runners on their home turf. Fans looking for an edge can use the current FanDuel Sportsbook promo code deal to get closer to the diamond action.

FanDuel Sportsbook Odds for Mariners vs. Guardians

Below are the live baseball betting lines available on the platform for this Sunday matchup:

Odds taken from FanDuel Sportsbook on Sunday, June 28, 2026, at 9:00 AM ET. Lines are subject to change before the first pitch.

Bet $5 Get $50 for 7 Days

How to Use the FanDuel Sportsbook Promo Code for Mariners vs. Guardians

To get the most out of this multi-day structure, you should focus on smart bankroll management and disciplined selections.

• Day 1 Focus: Place your very first $5 cash bet on a highly probable outcome, such as the Guardians covering the +1.5 run line at home, which activates your first $50 bonus allotment regardless of whether the bet wins or loses.

• Track the Calendar: Because the FanDuel Sportsbook promo code promotion requires a wager every day for seven straight days, set a small daily budget of exactly $5 for the next six days to ensure you hit the minimum requirement without overextending.

• Diversify Across Markets: Don't feel obligated to place your subsequent daily wagers solely on high-risk parlays. Look at standard moneylines, over/under totals, or basic player props over the next week to complete the promotional cycle.

How to Watch Mariners vs. Guardians

• Date and Time: Sunday, June 28, 2026, at 1:40 PM ET

• Location: Progressive Field, Cleveland, Ohio

• TV Channel: CleGuardians.TV, Mariners.TV

• Streaming: Fubo, MLB.tv