Mariners vs Athletics Prediction 9/12/26 MLB Picks Today

In this article, we will formulate a Mariners vs Athletics Prediction for this MLB matchup on Saturday, September 12^th in the second game of this series. Let’s take a look at the prediction for this MLB matchup.

Athletics Preview

The Athletics have a 60-88 record this season and are sitting in the 4th place of the AL West. They have a 28-45 home record and are coming off a 6-5 home win against the Mariners. They will face the Rays and the Guardians next.

The Athletics have a .246 batting average this season, .319 OBP and .404 Slugging percentage. Oakland’s pitching staff has a 5.33 ERA and 1.49 WHIP. Jeff McNeil is the team’s best hitter with a .270 batting average. Nick Kurtz leads the team in RBI with 69, while Shea Langeliers adds a team-high 23 home runs.

Gage Jump (L) is the projected starting pitcher for the Athletics, and he has a 6-10 record, 5.12 ERA and 1.49 WHIP.

Seattle Mariners Preview

The Seattle Mariners have a 69-79 record this season and are sitting in the 3rd place of the AL West. They have a 29-44 away record and are coming off a 5-6 road loss against the Athletics. They will face the Astros and the Angels next.

The Seattle Mariners have a .229 batting average this season, .309 OBP and .374 Slugging percentage. Seattle’s pitching staff has a 4.22 ERA and 1.25 WHIP. Randy Arozarena is the team’s best hitter with a .272 batting average, leading the team in RBI with 67 and adding a team-high 22 home runs.

Bryan Woo (R) is the projected starting pitcher for the Mariners, and he has a 11-9 record, 4.03 ERA and 1.06 WHIP.

Seattle Mariners @ Athletics Betting Trends: September 12, 2026

• Probable Starting Pitcher: Gage Jump      Record this season: 6-10      ERA: 5.12
• Home Record: 3-5
• Last 5 against Mariners: 0-2

Why the Athletics will win

• The Mariners have lost each of their last nine games as road favorites.
• The Athletics have won five of their last six games as underdogs against AL West opponents.
• The Mariners have failed to cover the run line in each of their last 11 games as road favorites.
• The underdogs have covered the run line in 12 of the Mariners’ last 13 games.
• The Mariners have trailed after 5 innings in each of their last six night games against opponents that held a losing record.
• The Mariners have lost the first inning in each of their last five games as road favorites.
• The Mariners have trailed after 3 innings in each of their last four games as road favorites.

• Probable Starting Pitcher: Bryan Woo      Record this season: 11-9      ERA: 4.03
• Road Record: 3-8
• Last 5 against Athletics: 3-1

Why the Seattle Mariners will win

• The Mariners have won each of their last six games against the Athletics after going to extra innings.
• The Athletics have lost each of their last four games after going to extra innings.
• The Mariners have covered the run line in 12 of their last 13 games against AL opponents following an extra innings loss.
• The Athletics have failed to cover the run line in nine of their last 10 home games against AL West opponents following a win.
• The Mariners have won the first inning in three of their last four road games against AL West opponents that held a losing record.
• The Mariners have led after 3 innings in three of their last four games at Sutter Health Park.
• The Athletics have trailed after 5 innings in five of their last six home games against opponents that held a losing record.

Total Runs Facts

• Each of the Mariners’ last eight night games against AL opponents have gone OVER the total runs line.
• Each of the Athletics’ last six night games against AL West opponents have gone OVER the total runs line.
• There has been at least one run scored in the first inning in each of the Mariners’ last nine road games against AL West opponents.
• There has been no run scored during the first inning in each of the Athletics’ last six Saturday night games against AL West opponents.

Athletics Player Prop Facts

• Lawrence Butler has hit a home run in three of the Athletics’ last four home games against AL West opponents.
• Carlos Cortes has recorded at least one hit in each of his last eight appearances in night games.

Seattle Mariners Player Prop Facts

• Bryan Woo has recorded six or more strikeouts in nine of his last 10 appearances against AL West opponents that held a losing record.
• Bryan Woo has recorded a win in each of his last four appearances against AL opponents that held a losing record.
• J.P. Crawford has recorded at least one hit in each of the Mariners’ last nine games against the Athletics.
• Lazaro Montes has hit a home run in each of his two previous road appearances.

Matchup/League Facts

• The Athletics rank 29th in the league for ERA this season (5.33).
• The Athletics rank 29th in the league for opponent batting average this season (.268).
• The Mariners rank 30th in the league for runs scored this season (586).
• The Mariners rank 30th in the league for doubles this season (180).

Mariners vs Athletics Prediction

The Athletics are 4-1 in their last 5 meetings against the Mariners but are 1-3 in their last 4 meetings at home.

In this Mariners vs Athletics Prediction, the Mariners are coming as -170 home favorites. The Mariners are falling off the wild card race fast and I don’t trust Woo on the road, where he has a 3-8 record and 5.62 ERA. Jump has also been in bad shape and terrible at home with a 5.62 ERA and the A’s have the worst bullpen in baseball, so I expect another high-scoring affair. Both teams are 14-5-1 to the over in their last 20 games combined, winds are blowing out at 10-16 mph and this is a hitter-friendly park. Take the over 9.5 in this one.