Mariners vs. Diamondbacks Dunkel MLB Picks, Predictions and Prop Bets - May 31

The Seattle Mariners have a 2-0 series lead, aiming to sweep the Arizona Diamondbacks on Sunday at T-Mobile Park, at 4:10 p.m. ET. Bryce Miller (1-0, 2.25 ERA) gets the start for the Mariners, who are 30-29 this season and first in the AL West. Merrill Kelly (5-3, 5.25 ERA) is expected to start for the Diamondbacks, who are 31-26 and third in the NL West.

Sportsbooks have made the Mariners a decent moneyline favorite (-151) at home over the Diamondbacks (+126). The total in this contest is 7.

Mariners vs. Diamondbacks Odds, Game Time

• Game day: Sunday, May 31, 2026
• Game time: 4:10 p.m. ET
• Location: Seattle, Washington
• Stadium: T-Mobile Park
• Favorite: Mariners (-151)
• Underdog: Diamondbacks (+126)
• Over/under: 7

How to Watch Mariners vs. Diamondbacks

• TV Channel: SEAM and ARID
• Live Stream: Fubo (Watch for free)

Bet now on FanDuel Sportsbook!

Mariners vs. Diamondbacks: Betting the Moneyline

• The Mariners have won 51.9% of the games this season when they were the moneyline favorite (28-26).
• Arizona has come away with 13 wins in the 32 contests it has been listed as the underdogs in this season.
• Seattle has a record of 10-7 in games when bookmakers favor them by at least -151 on the moneyline.
• This year, the Diamondbacks have won four of 11 games when listed as at least +126 or worse on the moneyline.
• Based on this game's moneyline, the Mariners' implied win probability is 60.2%.
• The Diamondbacks have an implied victory probability of 44.2% according to the moneyline set by sportsbooks for this matchup.

Mariners vs. Diamondbacks: Betting the Spread & Total

• In the 59 games in which oddsmakers have set an over/under for the Mariners, they have combined with opponents to go over the total 27 times (27-30-2).
• So far this season, Arizona and its opponents have hit the over in 29 of its 57 games with a total.
• The Mariners have a 23-36-0 record against the spread this season (covering just 39% of the time).
• The Diamondbacks are 34-23-0 against the spread in their 57 games that had a posted line this season.