Mariners vs. Orioles Dunkel MLB Picks, Predictions and Prop Bets - June 18

The Seattle Mariners host the Baltimore Orioles at 4:10 p.m. ET on Thursday, with both teams hoping to win the series. Bryan Woo (5-5, 4.28 ERA) gets the start for the Mariners, who are 38-37 this season and first in the AL West. Shane Baz (4-6, 4.06 ERA) is expected to start for the Orioles, who are 35-40 and fourth in the AL East.

The Mariners are moderate favorites on the moneyline (-135) at home over the Orioles (+111). The over/under in this contest is set at 7.5.

Mariners vs. Orioles Odds, Game Time

• Game day: Thursday, June 18, 2026
• Game time: 4:10 p.m. ET
• Location: Seattle, Washington
• Stadium: T-Mobile Park
• Favorite: Mariners (-135)
• Underdog: Orioles (+111)
• Over/under: 7.5

How to Watch Mariners vs. Orioles

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

Bet now on FanDuel Sportsbook!

Mariners vs. Orioles: Betting the Moneyline

• The Mariners have put together a 36-32 record in games they were favored on the moneyline (winning 52.9% of those games).
• Baltimore has been underdogs in 39 games this season and has come away with the win 17 times (43.6%) in those contests.
• Seattle has a record of 25-17, a 59.5% win rate, when favored by -135 or more by sportsbooks this season.
• The Orioles have a mark of 7-11 in contests where bookmakers favor them by +111 or worse on the moneyline.
• Based on this game's moneyline, the Mariners have an implied win probability of 57.4%.
• The moneyline set for this matchup implies the Orioles have a 47.4% chance of walking away with the win.

Mariners vs. Orioles: Betting the Spread & Total

• The Mariners have combined with opponents to hit the over on the total 37 times this season for a 37-35-3 record against the over/under.
• Baltimore and its opponents have gone over the total this season in 44 of its 75 opportunities.
• The Mariners have covered just 37.3% of their games this season, going 28-47-0 ATS.
• The Orioles have posted a record of 36-39-0 against the spread this season.