Seattle Mariners vs Oakland Athletics, Odds, Analysis, Predictions

by | Last updated Sep 20, 2022 | mlb

Seattle Mariners vs Oakland Athletics

Date: Tuesday September 20th, 09:40 ET

Location: T-Mobile Park


Money Line: Mariners -200 / Athletics +165 (Dimelines – A MUST HAVE if you bet MLB!)

Total Line: 7


Seattle: Luis Castilo (4-4, 2.86)
Oakland: JP Sears (3-0, 2.05)


Seattle Mariners: 80-65-0 SU / OU 67-72-7 / Run Line W/L 79-67-0
Oakland Athletics: 53-94-0 SU / OU 65-73-9 / Run Line W/L 71-76-0

The Oakland Athletics host the Seattle Mariners on Tuesday September 20th at T-Mobile Park. The first pitch in this matchup is scheduled for 09:40 ET. The MLB Odds Board places Seattle as the favorite (-200), with an OU line set at 7.0.

Recent Form

The Seattle Mariners will look to pick up another big win after they defeated the LA Angels by a score of 9-1. On their way to the victory, the pitching staff gave up 1 runs on 8 hits. The Mariners benefited from an offense that generated 9 runs on 9 hits. Heading into their last game, Seattle was the betting favorite at -129.0. So far, the team has been the favorite in 78 of their games, winning at a rate of 65.0%. With the over-under line set at 7.5 runs, the Mariners and LA Angels combined to go over this total. Games involving the Mariners have stayed below the over-under line more than half of the time, at 67-72-7.

After their 5 most recent games, the Mariners have gone just 2-3. Despite their below .500 record (last 5), in this stretch the team still has a positive run differential at +7. Compared to their overall average of 4.20 runs per game, the team’s offense is playing well. Over their last 5 contests, they have bumped this figure up to 4.8. So far, Seattle has won over half of their 46 series played, going 24-18-4.

Oakland is coming off a 9-run loss to the Astros. Dropping the game 11-2. On their way to giving up 11 runs, the Athletics staff allowed 15 hits. At the plate, the Athletics only came through for 2 runs on 5 hits. This loss came as no surprise, as Oakland came into the game as the underdog, getting 270.0. In their 125 games as the underdog, their straight-up win percentage sits at 36.0%. In terms of the over-under, the Athletics and Astros combined to surpass the line of 7.5 runs. Against the run total, Oakland is just 65-73-9.

The Athletics come into today’s game looking to turn things around, as they are just 2-3 over their last 5 games. During this time, the team has a run differential of -13. Even with their recent struggles, the offense has been steady, averaging 4.0 runs per game. This is right in line with their season average of 3.49. Oakland has a below .500 series record of just 11-31-5.

Pitching Matchup

Luis Castilo gets the start for the Mariners, with an overall record of 4-4. In his previous outings, Castilo has lasted an average of 6.07 innings, putting together an ERA of just 2.86. Hits have been hard to come by against the right-hander, as his batting average allowed is just 0.201. Home runs have not been an issue for Castilo, as he is giving up just 0.74 HR/9. Per game, Luis Castilo is averaging 6.43, on a strikeout percentage of 26.0%. In his previous outings, walks have been an issue, as Castilo is averaging 2.96 free passes per outing.

The Oakland Athletics will send JP Sears to the mound with an overall record of 3-0. In his previous outings, Sears has lasted an average of 3.14 innings, putting together an ERA of just 2.05. So far, batters are hitting just 0.184 against him. Not only does Sears have a strong batting average allowed, but he has also avoided giving up home runs. In his previous outings, opponents are averaging just 0.41 home runs allowed per 9 innings. In terms of strikeouts, Sears is averaging just 2.14 K’s per game. So far, he has struck out 18.0% of the batters he has faced. Sears has done a good job at limiting walks, averaging just 2.05 per contest.

Seattle vs Oakland History

For the season, the Seattle Mariners and Oakland Athletics will be playing their 14th game of the season. Seattle has the lead in the series at 8-5. The over-under record in this series sits at 7-6. The average run total in these games is 8.26 runs per game. The averge scoring margin in these meetings is 2.92 runs. Going back to last year, Seattle won the season series, 15 games to 4. The over-under record in last year’s matchups was 6-13, with the average run total being 8.26 runs per game. On average, the winning team won by a margin of 2.79 runs per contest.

Betting Trends

  • Seattle is 10-2 SU in its last 12 games when playing on the road against Oakland
  • Seattle is 8-2 ATS in its last 10 games on the road
  • The total has gone OVER in 5 of Oakland’s last 6 games at home
  • Oakland is 5-1 ATS in its last 6 games when playing Seattle

Seattle Mariners at Oakland Athletics Prediction

Heading into Tuesday’s AL West showdown between Seattle and Oakland, the Mariners have a strong edge on the moneyline. Look for the Athletics’ offense to struggle vs Luis Castillo, who comes into the game with a WHIP of just 2.37. I like the Mariners on the moneyline.

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