Mariners vs Blue Jays Odds: How to Bet on Game 3 of the ALCS as Mariners Look to Take 3-0 Lead at Home

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The Seattle Mariners took the first two games of the ALCS, playing in Toronto, and now they return to Seattle. 

The American League’s best team, the Toronto Blue Jays (94-68), had one of the best offenses in the regular season, leading the league in hits, batting average and on-base percentage. But after losing the first game of the series, they failed to follow up in Game 2— with the Mariners exploding for 10 runs on 10 hits. Julio Rodriguez, Jorge Polanco and Josh Naylor all homered in the 10-3 win. 

The Mariners’ fans haven’t seen their team play in an ALCS game since 2001, so expect them to bring all the energy to T-Mobile Park.

Can the Blue Jays offense come back to life and get a much-needed win, or can the Mariners offense stay hot and take a commanding 3-0 lead? 

No matter which team you’re betting on, FanDuel, DraftKings, bet365 and more sportsbooks have you covered and have some incredible promos for Game 3. Read how to sign up and claim them below.

FanDuel

Claim the $300 FanDuel Promo Code 

1. Sign up for FanDuel Sportsbook and make a deposit of at least $5.

2. Place your first cash wager of any type of at least $5.

3. Get your $300 in Sportsbook Bonus Bets only if your wager wins (within 72 hours of winning bet settlement).

4. If your first cash wager loses, you will not be eligible for the $300 in Sportsbook Bonus Bets.

5. Ineligible bets: cashed out wagers, and wagers placed using bonus funds or profit boost tokens.

6. Limit of one promotional bonus per person.

7. Max bonus $300 in bonus bets. ​​ 

Check these other promos from FanDuel

• MLB Postseason Profit Boost: Get a 30% Profit Boost Token to use on any wager for MLB Playoff games.

DraftKings

Claim the New User Bonus

1. Click here or on any of the other “Claim Bonus” buttons on this page. This will take you directly to the DraftKings app or website and apply the promo.
2. Click the SIGNUP button to register and verify your account.
3. Deposit $5 or more
4. Place your first wager of $5+ on any eligible market
5. If your bet wins, you receive $300 in bonus bets if you win.

• Works the same on desktop & mobile
• For New Customers only

Check these other promos from DraftKings

• MLB Bleacher Report YRFI/NRFI 33% Profit Boost: Get a 33% Profit Boost to use on any MLB NRFI/YRFI bet today, brought to you by B/R Betting!
• MLB Playoffs 25% SGP Boost Every Game: Boost a 4+ leg SGP on any MLB playoff game this postseason with a 25% Profit Boost Token.

Mariners vs. Blue Jays Betting Insights

• The Mariners have entered the game as favorites 116 times this season and won 67, or 57.8%, of those games.
• Seattle is 47-26 this season when entering a game favored by -134 or more on the moneyline.
• The oddsmakers’ moneyline implies a 57.3% chance of a victory for the Mariners.
• The Blue Jays have come away with 44 wins in the 77 contests they have been listed as the underdogs in this season.
• This season, Toronto has been victorious 18 times in 33 chances when named as an underdog of at least +114 or longer on the moneyline.
• The moneyline set for this matchup implies the Blue Jays have a 46.7% chance of coming away with a victory in the contest.

Mariners Recent Betting Performance

• The Mariners played as the moneyline favorite for five of their last 10 games, and went 1-4 in those matchups.
• Over their last 10 matchups, the Mariners and their opponents combined to hit the over four times (all 10 of the games had set totals).
• The Mariners have a 5-5-0 record against the spread over their past 10 games.

Blue Jays Recent Betting Performance

• The Blue Jays have played as underdogs in three of their past 10 games and won two of those contests.
• The Blue Jays and their opponents have combined to hit the over five times in their last 10 games with a total.
• The Blue Jays are 7-3-0 ATS over their last 10 games.

Bet365

How to claim bet365 Promo with Bonus Code ‘FOX365’.

1. Click the “Claim Bonus” button on this page to go directly to bet365.
2. Select Sign Up and create a new account by entering personal details (name, email, date of birth, address, last 4 digits of SSN).
3. Enter the bet365 bonus code when prompted to ensure the offer is locked in.
4. Make a minimum first deposit of $10 using an accepted payment method (PayPal, debit card, online banking, etc.).
5. Place your first wager. For the Bet $5, Get $300 offer, place a $5+ real-money bet on any market with odds of -500 or longer; win or lose, you’ll receive $300 in bonus bets once it settles. For the $1,000 First Bet Safety Net, place your first real-money bet; if it loses, bet365 refunds the stake (up to $1,000) in bonus bets.
6. Bonus bets are credited within 24 hours of the qualifying wager settling.

Check these other promos from bet365

• Big League Tuesdays Safety Net Bet: Get up to $10 back in Bonus Bets if your MLB Same Game Parlay loses.
• 100% Parlay Boost: The more legs in your parlay, the bigger your boost, up to 100%.

BetMGM Sportsbook 

How to Sign Up and Claim the BetMGM Sportsbook Bonus Code

1. Click here or on any of the other “Claim Bonus” buttons on this page. This will take you directly to the BetMGM app or website and automatically apply the promo code.
2. Select Sign Up and create a new account by entering personal details (name, email, date of birth, address, and last 4 digits of SSN).
3. When prompted, enter the promo code FOXSPORTS to ensure the offer is applied.
4. Make your first deposit of at least $10 using an accepted payment method (PayPal, Venmo, debit card, online banking, etc.).
5. Place your first real-money wager on any eligible sport:
6. If claiming the $1,500 First Bet Offer → refund is triggered only if the first bet loses.
7. Bonus bets are credited to your account within 24 hours once the qualifying bet settles.

Underdog

How to Sign Up and Claim the Underdog Fantasy Promo Code

1. Click here or on any “Claim Bonus” button on this page to go directly to Underdog Fantasy (bonus code FOXSPORTS applied automatically).

2. Register your account: provide full name, email, date of birth, address, and last 4 of SSN to verify eligibility.

3. Enter promo code FOXSPORTS to lock in the welcome offer.

4. Deposit at least $10 using PayPal, debit card, or online banking.

5. Play $5 in pick’em or sportsbook markets.

6. Once the entry/first wager settles, Underdog credits $100 in bonus cash (usable across DFS or sportsbook). 

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