Astros vs Orioles Prediction, Odds, Moneyline, Spread & Over/Under for July 18

Odds updated as of 10:12 p.m.

The MLB's Saturday slate includes the Houston Astros taking on the Baltimore Orioles.

Before you do any MLB betting on this game at FanDuel Sportsbook, here's everything you need to know.

Astros vs Orioles Game Info

• Houston Astros (47-51) vs. Baltimore Orioles (46-51)
• Date: Saturday, July 18, 2026
• Time: 4:10 p.m. ET
• Venue: Daikin Park -- Houston, Texas
• Coverage: SCHN and MASN

Astros vs Orioles Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: HOU: (-118) | BAL: (+100)
• Spread: HOU: +1.5 (-182) | BAL: -1.5 (+150)
• Total: 8.5 -- Over: (-122) | Under: (+100)

Astros vs Orioles Probable Starting Pitchers

Probable Pitchers: Spencer Arrighetti (Astros) - 7-5, 4.50 ERA vs Trevor Rogers (Orioles) - 6-7, 4.48 ERA

The Astros will give the ball to Spencer Arrighetti (7-5, 4.50 ERA), who is eyeing win No. 8 on the season, and the Orioles will turn to Trevor Rogers (6-7, 4.48 ERA). Arrighetti's team is 8-7-0 against the spread this season in his starts. Arrighetti's team has a record of 2-1 this season when he starts and they are the favorite on the moneyline. The Orioles have a 7-10-0 record against the spread in Rogers' starts. The Orioles have a 2-4 record in Rogers' six starts this season when they were the underdog on the moneyline.

Astros vs Orioles Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Astros win (52.9%)

Astros vs Orioles Moneyline

• Looking at the moneyline for Astros-Orioles, Houston is the favorite at -118, and Baltimore is +100 playing on the road.

Astros vs Orioles Spread

• The Orioles are 1.5-run favorites against the spread for this matchup with the Astros. The Orioles are +150 to cover, while the Astros are -182 to cover as a 1.5-run underdog on the runline.

Astros vs Orioles Over/Under

• The over/under for Astros-Orioles on July 18 is 8.5. The over is -122, and the under is +100.

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Astros vs Orioles Betting Trends

• The Astros have been victorious in 15, or 45.5%, of the 33 contests they have been chosen as favorites in this season.
• Houston has a record of 10-16 when favored by -118 or more this year.
• The Astros and their opponents have gone over in 53 of their 98 games with a total set by sportsbooks this season.
• The Astros are 46-52-0 against the spread in their 98 games that had a posted line this season.
• The Orioles have been the underdog on the moneyline 44 total times this season. They've finished 20-24 in those games.
• In games it has played as a moneyline underdog with odds of +100 or longer, Baltimore has a record of 15-19 (44.1%).
• In the 96 games bookmakers have set an over/under for the Orioles, they have combined with opponents to go over the total 53 times (53-40-3).
• The Orioles have covered 50% of their games this season, going 48-48-0 against the spread.

Astros Player Leaders

• Yordan Alvarez leads Houston with 111 hits and an OBP of .426, plus a team-best slugging percentage of .633. He's batting .318.
• Among qualifying batters in baseball, he is third in batting average, first in on-base percentage, and first in slugging.
• Alvarez has picked up at least one hit in three games in a row. During his last five outings he is batting .316 with a double, two home runs, four walks and three RBIs.
• Christian Walker is batting .237 with 19 doubles, a triple, 20 home runs and 33 walks. He's slugging .462 with an on-base percentage of .313.
• His batting average is 112th among qualified players, his on-base percentage 106th, and his slugging percentage 50th.
• Isaac Paredes is batting .254 with a .417 slugging percentage and 49 RBI this year.
• Paredes heads into this matchup with two games in a row with at least one hit. During his last five outings he is hitting .300 with two doubles, three walks and two RBIs.
• Cam Smith has been key for Houston with 70 hits, an OBP of .292 plus a slugging percentage of .377.

Orioles Player Leaders

• Pete Alonso has a slugging percentage of .474 and has 91 hits, both team-best numbers for the Orioles. He's batting .252 and with an on-base percentage of .346.
• Including all the qualifying players in the big leagues, his batting average is 82nd, his on-base percentage is 49th, and he is 38th in slugging.
• Alonso takes a three-game hitting streak into this game. During his last five outings he is hitting .278 with a double, two home runs, three walks and five RBIs.
• Gunnar Henderson has 16 doubles, two triples, 17 home runs and 34 walks while hitting .224. He's slugging .403 with an on-base percentage of .294.
• His batting average ranks 126th among all qualified players, his on-base percentage is 133rd, and he is 96th in slugging.
• Taylor Ward has put up a team-high OBP (.387) and slugging percentage (.359).
• Adley Rutschman is batting .253 with 18 doubles, a triple, eight home runs and 28 walks.

Astros vs Orioles Head to Head

• 4/30/2026: 11-5 HOU (Favorite: Orioles, Spread: -1.5, Total: 9, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 4/30/2026: 10-3 BAL (Favorite: Orioles, Spread: -1.5, Total: 9, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 4/28/2026: 5-3 BAL (Favorite: Orioles, Spread: -1.5, Total: 9, Favorite Moneyline: -136, Underdog Moneyline: +116)
• 8/24/2025: 3-2 BAL (Favorite: Orioles, Spread: -1.5, Total: 9, Favorite Moneyline: -132, Underdog Moneyline: +112)
• 8/23/2025: 9-8 HOU (Favorite: Orioles, Spread: -1.5, Total: 9, Favorite Moneyline: -118, Underdog Moneyline: -100)
• 8/22/2025: 10-7 HOU (Favorite: Astros, Spread: -1.5, Total: 9.5, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 8/21/2025: 7-2 HOU (Favorite: Orioles, Spread: -1.5, Total: 8.5, Favorite Moneyline: -118, Underdog Moneyline: -100)
• 8/17/2025: 12-0 BAL (Favorite: Astros, Spread: -1.5, Total: 8.5, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 8/16/2025: 5-4 HOU (Favorite: Astros, Spread: -1.5, Total: 8.5, Favorite Moneyline: -138, Underdog Moneyline: +118)
• 8/15/2025: 7-0 BAL (Favorite: Astros, Spread: -1.5, Total: 7.5, Favorite Moneyline: -220, Underdog Moneyline: +184)

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