Seattle Mariners at Baltimore Orioles odds, picks and predictions

Analyzing Friday’s Seattle Mariners at Baltimore Orioles odds and lines, with MLB expert picks, predictions and best bets.

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The Seattle Mariners (24-20) and Baltimore Orioles (27-14) meet Friday  to kick off a 3-game weekend series in the Charm City. First pitch at Oriole Park at Camden Yards is scheduled for 7:05 p.m. ET. Let’s analyze FanDuel Sportsbook’s lines around the Mariners vs. Orioles odds and make our expert MLB picks and predictions for the best bets.

Season series: First meeting; Orioles won 4 of 6 games last season

The Orioles avoided a sweep for the 105th series in a row Wednesday afternoon, as C Adley Rutschman delivered a walk-off HR against the Toronto Blue Jays in a 3-2 win. The O’s are 1 game back of the New York Yankees for 1st place in the AL East.

The Mariners are 1.5 games ahead of Texas for 1st place in the AL West after winning 4 out of their last 6 games, most recently defeating the Kansas City Royals 4-2 on Wednesday. C Cal Raleigh has 4 HRs in his last 11 games, reaching base in all but 2 of those games.

Diamondbacks at Orioles projected starters

RHP Bryce Miller vs. LHP Cole Irvin

Miller (3-3, 2.66 ERA) makes his 9th start. He has a 0.95 WHIP, 2.9 BB/9 and 9.7 K/9 in 47 1/3 IP.

  • Last start: Loss, 5 IP, 2 ER, 5 H, 2 BB, 9 K in 8-1 loss against the Oakland Athletics last Saturday
  • Only Astros SP Ronel Blanco, who is currently serving a 10-game suspension for using a banned substance, has a lower batting average against (.173) than Miller among AL qualified pitchers

Irvin (4-1, 2.90 ERA) makes his 8th start. He has a 1.07 WHIP, 1.8 BB/9 and 6.3 K/9 in 40 1/3 IP.

  • Last start: Win, 5 2/3 IP, 2 ER, 5 H, 1 BB, 6 K in 4-2 win over the Arizona Diamondbacks last Friday
  • Sports the lowest swinging strike percentage (6.8%) among 51 AL pitcher with at least 40 IP

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Mariners at Orioles odds

Provided by FanDuel Sportsbook; access USA TODAY Sports Scores and Sports Betting Odds hub for a full list. Lines last updated at 11:03 a.m. ET.

  • Moneyline (ML): Mariners +114 (bet $100 to win $114) | Orioles -134 (bet $134 to win $100)
  • Run line (RL)/Against the spread (ATS): Mariners +1.5 (-194) | Orioles -1.5 (+160)
  • Over/Under (O/U): 8 (O: -115 | U: -105)

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Mariners at Orioles picks and predictions

Prediction

Baltimore 4, Seattle 3

Moneyline

BET ORIOLES (-134).

The Orioles have hit the most HRs (64) in MLB, and Miller has surrendered 4 homers total in his last 4 starts. For the 1st time in his career, Rutschman has 4 dingers over the course of 3 games, and he’s surrounded in the O’s lineup by heavy hitters such as 3B Jordan Westburg, 1B Ryan Mountcastle and SS Gunnar Henderson.

I foresee Irvin pitching effectively enough multiple times through the Mariners lineup, giving way to a bullpen that features 6 arms that sport a 3.00 ERA or lower.

Run line/Against the spread

PASS.

Too much juice to lay on Seattle (-194) getting a run and a half. If you are into building parlays, including the Yankees ML (-290) at home against the lowly White Sox with Mariners +1.5 pays out between even money and +105.

Over/Under

BET UNDER 8 (-105).

Irvin may not be generating a lot of swinging strikes, but expect the focus to be on getting outs, not blowing away the Seattle hitters. Entering Friday, the Mariners are tied for the 4th-lowest on-base percentage (.302) vs. LHP in the AL. Plus, Henderson is 0 for his last 11, so with the 2023 AL Rookie of the Year in the midst of a slump I would not anticipate a plethora of runs for Baltimore either.

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