Odds updated as of 3:11 PM

The Saturday schedule in MLB includes a matchup between the Baltimore Orioles and the Seattle Mariners.

Here's what you need to know before checking out today's MLB odds and spreads on FanDuel Sportsbook.

Orioles vs Mariners Game Info

• Baltimore Orioles (28-14) vs. Seattle Mariners (24-21)
• Date: Saturday, May 18, 2024
• Time: 4:05 PM ET
• Venue: Oriole Park at Camden Yards -- Baltimore, Maryland
• Coverage: MASN2

Orioles vs Mariners Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: BAL: (-136) | SEA: (+116)
• Spread: BAL: -1.5 (+168) | SEA: +1.5 (-205)
• Total: 7 -- Over: (-115) | Under: (-105)

Orioles vs Mariners Probable Starting Pitchers

Probable Pitchers: Grayson Rodriguez (Orioles) - 4-1, 3.71 ERA vs Luis Castillo (Mariners) - 4-5, 3.31 ERA

This contest's pitching matchup is set, as the Orioles will send Grayson Rodriguez (4-1) to the mound, while Luis Castillo (4-5) will get the nod for the Mariners. Rodriguez's team is 5-1-0 against the spread in his starts this season. Rodriguez's team has won 83.3% of his starts when they are favored on the moneyline (5-1). When Castillo starts, the Mariners have gone 3-6-0 against the spread. The Mariners were the underdog on the moneyline for two Castillo starts this season -- they split the games.

Orioles vs Mariners Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (56.4%)

Orioles vs Mariners Moneyline

• The moneyline numbers for Orioles vs. Mariners reveal Baltimore as the favorite (-136) and Seattle as the underdog (+116) on the road.

Orioles vs Mariners Spread

• The Mariners are at the Orioles, and are +1.5 on the runline. The Mariners are +168 to cover the spread, and the Orioles are -205.

Orioles vs Mariners Over/Under

• The over/under for the Orioles versus Mariners contest on May 18 has been set at 7, with -115 odds on the over and -105 odds on the under.

Bet on Baltimore Orioles vs. Seattle Mariners on FanDuel today!

Orioles vs Mariners Betting Trends

• The Orioles have won in 20, or 60.6%, of the 33 contests they have been named as odds-on favorites in this year.
• This season Baltimore has come away with a win eight times in 17 chances when named as a favorite of at least -136 on the moneyline.
• The Orioles and their opponents have gone over in 21 of their 40 games with a total set by sportsbooks this season.
• The Orioles are 21-19-0 against the spread in their 40 games with a line set by sportsbooks this season.
• The Mariners have been the moneyline underdog 18 total times this season. They've finished 9-9 in those games.
• Seattle is 3-2 (winning 60% of its games) when playing as a moneyline underdog of +116 or longer.
• The Mariners have had an over/under set by oddsmakers 45 times, and have combined with opponents to go over the total in 16 of those games (16-26-3).
• The Mariners have gone 22-23-0 ATS this season.

Orioles Player Leaders

• Gunnar Henderson leads Baltimore in total hits (44) this season while batting .263 with 21 extra-base hits. He has an on-base percentage of .339 and a slugging percentage of .569.
• Among qualified hitters in MLB, his batting average ranks 58th, his on-base percentage ranks 55th, and he is sixth in slugging.
• Adley Rutschman has a slash line of .318/.353/.514 this season and a team-best OPS of .868.
• Among qualifying hitters, his batting average ranks him 11th, his on-base percentage 37th, and his slugging percentage 19th.
• Rutschman takes a four-game streak with at least one hit into this one. In his last five games he is hitting .333 with a double, four home runs, a walk and six RBI.
• Jordan Westburg has collected 44 base hits, an OBP of .346 and a slugging percentage of .523 this season.
• Anthony Santander has been key for Baltimore with 33 hits, an OBP of .297 plus a slugging percentage of .438.

Mariners Player Leaders

• Caleb Raleigh is leading the Mariners with 31 hits. He's batting .226 and slugging .467 with an on-base percentage of .305.
• Including all the qualifying hitters in MLB, his batting average ranks 120th, his on-base percentage ranks 108th, and he is 43rd in slugging.
• Josh Rojas is batting .319 with four doubles, two triples, three home runs and 12 walks. He's slugging .466 with an on-base percentage of .383.
• Mitch Haniger is hitting .219 with five doubles, six home runs and 15 walks.
• Dylan Moore is batting .221 with six doubles, two triples, four home runs and 12 walks.

Orioles vs Mariners Head to Head

• 5/17/2024: 9-2 BAL (Favorite: Orioles, Spread: -1.5, Total: 8.5, Favorite Moneyline: -132, Underdog Moneyline: +112)
• 6/29/2022: 9-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -138, Underdog Moneyline: +118)
• 6/28/2022: 2-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -174, Underdog Moneyline: +146)
• 6/27/2022: 9-2 BAL (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -154, Underdog Moneyline: +130)
• 5/31/2022: 10-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -134, Underdog Moneyline: +114)
• 8/13/2023: 5-3 BAL (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 8/12/2023: 1-0 BAL (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -164, Underdog Moneyline: +138)
• 8/11/2023: 9-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -146, Underdog Moneyline: +124)
• 6/25/2023: 3-2 BAL (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -122, Underdog Moneyline: +104)
• 6/24/2023: 6-4 BAL (Favorite: Orioles, Spread: -1.5, Total: 9, Favorite Moneyline: -118, Underdog Moneyline: -100)

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