Orioles vs Diamondbacks Prediction, Odds, Moneyline, Spread & Over/Under for April 15

Odds updated as of 12:12 p.m.

On Wednesday in MLB, the Baltimore Orioles are playing the Arizona Diamondbacks.

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

Orioles vs Diamondbacks Game Info

• Baltimore Orioles (9-8) vs. Arizona Diamondbacks (10-8)
• Date: Wednesday, April 15, 2026
• Time: 12:35 p.m. ET
• Venue: Oriole Park at Camden Yards -- Baltimore, Maryland
• Coverage: MASN and Dbacks.TV

Orioles vs Diamondbacks Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: BAL: (-142) | ARI: (+120)
• Spread: BAL: -1.5 (+142) | ARI: +1.5 (-172)
• Total: 9 -- Over: (-118) | Under: (-104)

Orioles vs Diamondbacks Probable Starting Pitchers

Probable Pitchers: Kyle Bradish (Orioles) - 1-2, 5.27 ERA vs Eduardo Rodríguez (Diamondbacks) - 1-0, 0.50 ERA

The Orioles will give the nod to Kyle Bradish (1-2, 5.27 ERA), who is eyeing win No. 2 on the season, and the Diamondbacks will counter with Eduardo Rodriguez (1-0, 0.50 ERA). Bradish's team is 1-2-0 against the spread this season in his starts. Bradish's team has won 33.3% of his starts when they are favored on the moneyline (1-2). When Rodriguez starts, the Diamondbacks are 2-1-0 against the spread. The Diamondbacks are 1-2 in Rodríguez's three starts this season that they were the moneyline underdog.

Orioles vs Diamondbacks Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Diamondbacks win (51.4%)

Orioles vs Diamondbacks Moneyline

• Arizona is the underdog, +120 on the moneyline, while Baltimore is a -142 favorite at home.

Orioles vs Diamondbacks Spread

• The Orioles are 1.5-run home favorites on the runline against the Diamondbacks. The Orioles are +142 to cover, and the Diamondbacks are -172.

Orioles vs Diamondbacks Over/Under

• The over/under for the Orioles versus Diamondbacks game on April 15 has been set at 9, with -118 odds on the over and -104 odds on the under.

Bet on Baltimore Orioles vs. Arizona Diamondbacks on FanDuel today!

Orioles vs Diamondbacks Betting Trends

• The Orioles have come away with eight wins in the 13 contests they have been listed as the favorites in this season.
• Baltimore has a record of 4-2 when favored by -142 or more this year.
• Contests with the Orioles have gone over the total set by bookmakers in nine of 17 chances this season.
• The Orioles are 7-10-0 against the spread in their 17 games with a line set by sportsbooks this season.
• The Diamondbacks have won six of the 14 games they were listed as the moneyline underdog this season (42.9%).
• When it has played as a moneyline underdog with odds of +120 or longer, Arizona has a 5-4 record (winning 55.6% of its games).
• The Diamondbacks have combined with opponents to hit the over on the total 10 times this season for a 10-7-1 record against the over/under.
• The Diamondbacks have a 14-4-0 record ATS this season.

Orioles Player Leaders

• Gunnar Henderson leads Baltimore in total hits (16) this season while batting .222 with 10 extra-base hits. He has an on-base percentage of .309 and a slugging percentage of .542.
• Among all qualifying hitters, he is 113th in batting average, his on-base percentage ranks 121st, and he is 27th in slugging.
• Taylor Ward has a slash line of .324/.413/.471 this season and a team-best OPS of .883.
• He is 16th in batting average, 15th in on-base percentage and 56th in slugging among qualified hitters.
• Jeremiah Jackson has collected 16 base hits, an OBP of .340 and a slugging percentage of .563 this season.
• Jackson heads into this matchup with five games in a row with at least one hit. In his last five games he is hitting .500 with two doubles, three home runs and seven RBIs.
• Pete Alonso has two home runs, seven RBI and a batting average of .206 this season.

Diamondbacks Player Leaders

• Corbin Carroll has racked up a team-high OBP (.379) and slugging percentage (.579), and leads the Diamondbacks in hits (17, while batting .298).
• Including all qualifying hitters in MLB, his batting average puts him 34th, his on-base percentage ranks 37th, and he is 14th in slugging.
• Ildemaro Vargas is batting .381 with four doubles, a triple, two home runs and two walks. He's slugging .667 with an on-base percentage of .409.
• Geraldo Perdomo is batting .190 with two doubles, a home run and 11 walks.
• Ketel Marte has two doubles, four home runs and six walks while hitting .212.

Orioles vs Diamondbacks Head to Head

• 4/14/2026: 4-3 ARI (Favorite: Orioles, Spread: -1.5, Total: 8.5, Favorite Moneyline: -166, Underdog Moneyline: +140)
• 4/13/2026: 9-7 BAL (Favorite: Orioles, Spread: -1.5, Total: 9, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 4/9/2025: 9-0 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -118, Underdog Moneyline: -100)
• 4/8/2025: 4-3 ARI (Favorite: Orioles, Spread: -1.5, Total: 9.5, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 4/7/2025: 5-1 BAL (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -124, Underdog Moneyline: +106)
• 5/12/2024: 9-2 ARI (Favorite: Orioles, Spread: -1.5, Total: 7.5, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 5/11/2024: 5-4 BAL (Favorite: Orioles, Spread: -1.5, Total: 8.5, Favorite Moneyline: -152, Underdog Moneyline: +128)
• 5/10/2024: 4-2 BAL (Favorite: Orioles, Spread: -1.5, Total: 7.5, Favorite Moneyline: -132, Underdog Moneyline: +112)
• 9/3/2023: 8-5 BAL (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 9/2/2023: 7-3 BAL (Favorite: Orioles, Spread: -1.5, Total: 9, Favorite Moneyline: -132, Underdog Moneyline: +112)

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