Arizona Diamondbacks vs Baltimore Orioles Prediction 4/13/2026 Today’s MLB Picks

Nikos Lagouretos

4 hours ago

Arizona Diamondbacks right-hander Ryne Nelson (19) pitches against the Los Angeles Dodgers at Chase Field in Phoenix, on Sept. 24, 2025.

MATCHUP	Arizona Diamondbacks	Baltimore Orioles
Team Records	9-7	8-7
Spread	+1.5 -194	-1.5 159
Moneyline	+109	-131
Total	Over 8.5 (-120)	Under 8.5 (100)
Where	Oriole Park at Camden Yards, Baltimore, Maryland
When	Monday, April 13, 2026
Time	06:35 PM EDT
TV	MLB.TV

In this article, we will formulate a Diamondbacks vs Orioles Prediction for this MLB matchup on Monday, April 13th in the opening game of this series. Let’s take a look at the prediction for this MLB matchup.

Baltimore Orioles Preview

The Baltimore Orioles have an 8-7 record this season and are sitting in the first place of the AL East. They have a 5-4 home record and are coming off a 6-2 home win against the Giants. Their previous three games were a 6-2 home win and a 3-6 home loss against the Giants, and a 5-3 road win against the White Sox.

The Orioles have a .249 batting average this season, .335 OBP and .385 Slugging percentage. Baltimore’s pitching staff has a 3.74 ERA and 1.35 WHIP. Taylor Ward is the team’s best hitter with a .356 batting average. Gunnar Henderson leads the team in RBI with 12, also adding a team-high 6 home runs.

Trevor Rogers (L) is the projected starting pitcher for the Diamondbacks, and he has a 2-0 record, 1.89 ERA and 1.05 WHIP.

Arizona Diamondbacks Preview

The Arizona Diamondbacks have a 9-7 record this season and are sitting in the third place of the NL West. They have a 4-5 away record and are coming off a 4-3 road win against the Phillies. Their previous three games were a 3-4 road loss and a 5-4 road win against the Phillies, and a 7-1 road win against the Mets.

The Diamondbacks have a .226 batting average this season, .286 OBP and .362 Slugging percentage. Arizona’s pitching staff has a 3.63 ERA and 1.21 WHIP. Corbin Carroll is the team’s best hitter with a .327 batting average, also leading the team in RBI with 11. Ketel Marte adds a team-high 2 home runs.

Ryne Nelson (R) is the projected starting pitcher for the Diamondbacks, and he has a 1-1 record, 4.20 ERA and 1.07 WHIP.

Arizona Diamondbacks @ Baltimore Orioles Betting Trends: April 13, 2026

Probable Starting Pitcher: Trevor Rogers Record this season: 2-0 ERA: 1.89
Home Record: 2-0
Last 5 against Diamondbacks: 2-1

Why the Baltimore Orioles will win

The Orioles have won each of their last five games after playing the previous day.
The Diamondbacks have lost each of their last four night games against the Orioles following a win.
The Orioles have covered the run line in each of their last four games after playing the previous day.
The Diamondbacks have failed to cover the run line in each of their last three night games against the Orioles following a win.
The Diamondbacks have lost the first inning in three of their last four road games against AL East opponents.
The Orioles have led after 3 innings in five of their last six games as favorites against NL West opponents.
The Diamondbacks have trailed after 5 innings in five of their last six road games against American League opponents that held a winning record.

Probable Starting Pitcher: Ryne Nelson Record this season: 1-1 ERA: 4.20
Road Record: 1-0
Last 5 against Orioles: 0-0

Why the Arizona Diamondbacks will win

The Diamondbacks have won eight of their last nine games as underdogs against American League opponents.
The Orioles have lost each of their last six night games following a win.
The Diamondbacks have covered the run line in each of their last 12 games as underdogs against American League opponents.
The Orioles have failed to cover the run line in each of their last six night games following a win.
The Diamondbacks have led after 5 innings in 10 of their last 11 games against AL East opponents.
The Diamondbacks have led after 3 innings in each of their last five games against American League opponents that held a winning record.

Total Runs Facts

Seven of the Diamondbacks’ last eight games against AL East opponents have gone OVER the total runs line.
Eight of the Orioles’ last 10 home games against National League opponents have gone UNDER the total runs line.
The ‘Inning 1 UNDER 0.5 runs’ market has hit in seven of the Orioles’ last eight games as favorites.
The ‘Inning 1 UNDER 0.5 runs’ market has hit in each of the Diamondbacks’ last four games at Oriole Park at Camden Yards.

Baltimore Orioles Player Prop Facts

Trevor Rogers has recorded a win in each of his last four appearances with the Orioles as home favorites.
Tyler O’Neill has hit a home run in each of his last four home appearances against NL West opponents.
Adley Rutschman has recorded at least one hit in each of his last nine appearances against NL opponents.
Trevor Rogers has recorded five or more strikeouts in each of his last eight appearances against NL opponents.
Gunnar Henderson ranks T2nd in the league in Home Runs (6) this season.

Arizona Diamondbacks Player Prop Facts

Geraldo Perdomo has hit a home run in three of the Diamondbacks’ last four road games against AL opponents that held a winning record.
Ryne Nelson has recorded six or more strikeouts in three of his last four appearances against AL opponents that held a winning record.
Ildemaro Vargas has recorded at least one hit in each of his last 16 appearances in night games.
Corbin Carroll ranks 6th amongst qualified players for Slugging Percentage (.653) this season.

Matchup/League Facts

The Orioles rank T4th in the league for doubles this season (31).
The Orioles rank T5th in the league for home runs allowed this season (11).
The Diamondbacks rank 29th in the league for home runs this season (9).
The Diamondbacks rank 2nd in the league for triples this season (5).

Diamondbacks vs Orioles Prediction

Both teams are tied 5-5 in their last 10 meetings and the Orioles are 2-1 in their last three meetings in Baltimore.

In this Diamondbacks vs Orioles Prediction, the Orioles are coming as -130 home favorites. Both teams have been in good form lately with a 5-1 and 4-1 record in their last six and five games respectively and both pitchers have been fairly good lately. Nelson has stringed two good starts and the Dbacks have been far better against lefties with 5.1 runs/9, so I like them as road dogs in this spot. They are coming off two winning series on the road against the Mets and the Phillies and I like them to start with a win here and I’ll take the plus money.