| MATCHUP | Oakland Athletics | Seattle Mariners |
|---|---|---|
| Team Records | 42-57 | 66-76 |
| Spread | +1.5 104 | -1.5 -126 |
| Moneyline | +207 | -257 |
| Total | Over 8 (-105) | Under 8 (-115) |
| Where | T-Mobile Park, Seattle, Washington | |
| When | Saturday, September 5, 2026 | |
| Time | 09:40 PM EDT | |
| TV | MLB.TV | |
In this article, we will formulate an Athletics vs Mariners Prediction for this MLB matchup on Saturday, September 5th in the second game of this series. Let’s take a look at the prediction for this MLB matchup.
Seattle Mariners Preview
The Seattle Mariners have a 66-76 record this season and are sitting in the 3rd place of the AL West. They have a 37-33 home record and are coming off a 6-7 home loss against the Athletics. They will face the Rangers and the Athletics next.
The Seattle Mariners have a .230 batting average this season, .311 OBP, and .376 slugging percentage. Seattle’s pitching staff has a 4.22 ERA and 1.26 WHIP. Randy Arozarena is the Mariners’ best hitter with a .271 batting average, while leading the team in RBI with 66, adding a team-high 22 home runs.
George Kirby (R) is the projected starting pitcher for the Mariners, with a 9-10 record, 4.19 ERA, and 1.35 WHIP.
Athletics Preview
The Athletics have a 56-86 record this season and are sitting in the 4th place of the AL West. They have a 31-42 road record and are coming off a 7-6 road win against the Mariners. They will face the Blue Jays and the Mariners next.
The Athletics have a .248 batting average this season, .321 OBP, and .406 slugging percentage. Oakland’s pitching staff has a 5.45 ERA and 1.50 WHIP. Jeff McNeil is the Athletics’ best hitter with a .271 batting average. Nick Kurtz leads the team in RBI with 69, while Shea Langeliers adds a team-high 23 home runs.
Jeffrey Springs (L) is the projected starting pitcher for the Athletics, with a 3-13 record, 6.37 ERA, and 1.50 WHIP.
Athletics @ Seattle Mariners Betting Trends: September 5, 2026
- Probable Starting Pitcher: George Kirby Record this season: 9-10 ERA: 4.19
- Home Record: 6-4
- Last 5 against Athletics: 4-0
Why the Seattle Mariners will win
- The Athletics have lost each of their last seven Saturday games against AL opponents that held a losing record.
- The Mariners have won 12 of their last 14 home games against AL West opponents that held a losing record.
- The Athletics have failed to cover the run line each of their last seven Saturday games against AL opponents that held a losing record.
- The Athletics have lost the first inning in three of their last four games.
- The Athletics have trailed after 3 innings in six of their last seven night games.
- Probable Starting Pitcher: Jeffrey Springs Record this season: 3-13 ERA: 6.37
- Road Record: 1-4
- Last 5 against Mariners: 2-1
Why the Athletics will win
- The Mariners have lost each of their last seven games as favorites against AL opponents.
- The underdogs have won each of the Mariners’ last four games.
- The road team has covered the run line in each of the last eight games between the Athletics and Mariners.
- The Mariners have failed to cover the run line in each of their last 10 Saturday night games as favorites against AL opponents.
- The Mariners have trailed after 5 innings in each of their last four games as favorites against AL West opponents.
Total Runs Facts
- Each of the Athletics’ last six games have gone OVER the total runs line.
- Ten of the Mariners’ last 11 games as favorites against AL West opponents have gone OVER the total runs line.
- There has been at least one run scored in the first inning in eight of the Mariners’ last nine games against AL West opponents.
- There has been at least one run scored in the first inning in seven of Jeffrey Springs’ last eight appearances as a starter.
Seattle Mariners Player Prop Facts
- Cal Raleigh has hit at least one home run in each of his last five appearances against the Athletics after playing the previous day.
- George Kirby has recorded six or more strikeouts in each of his last four appearances against AL West opponents that held a losing record.
- George Kirby has recorded a win in 10 of his last 11 appearances against AL West opponents that held a losing record.
- Jhonny Pereda has recorded at least one hit in each of his eight previous appearances in night games against teams that held a losing record.
Athletics Player Prop Facts
- Zack Gelof has hit a home run in each of the Athletics’ last three games.
- Lawrence Butler has recorded at least one hit in each of the Athletics’ last 16 games against opponents that held a losing record.
- Jeffrey Springs has recorded four or more strikeouts in seven of his last eight appearances with the Athletics as underdogs against AL West opponents.
Matchup/League Facts
- The Mariners rank 30th in the league for runs scored this season (565).
- The Mariners rank 30th in the league for doubles this season (173).
- The Athletics rank 30th in the league for ERA this season (5.45).
- The Athletics rank 30th in the league for runs allowed this season (815).
Athletics vs Mariners Prediction
The Mariners are 4-2 in their last 6 meetings against the Athletics but have lost their last four meetings in Seattle.
In this Athletics vs Mariners Prediction, the Mariners are coming as -245 home favorites. This line makes no sense, as the Mariners are huge -245 favorites and the line is almost 30 cents higher than when they had Gilbert on the mound. The Mariners have lost outright both games, they are now 2-7 in their last 9 games, they have 6+ earned runs in seven of their last nine games and they have a 5+ bullpen ERA in their last 10 games. Kirby has 5+ earned runs in three of his last four starts. For more than twice my money I will take a stab with the A’s on the moneyline in this one.