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Take The UNDER As Athletics, Mariners Collide

Chris Flexen and the Mariners are slight favorites in MLB betting odds Monday night vs the Athletics.

The Oakland Athletics roll into Seattle to take on the Mariners in a three-game set on Monday night, with both clubs hanging on to their playoff hopes by a thread. At 8-2 through their last 10 outings, Seattle is one of the hottest teams in the majors right now, while Oakland is fresh off a three-game sweep of the Houston Astros.


Oakland Athletics vs Seattle Mariners
  • Date/Time: September 27, 10:10 p.m. ET
  • Stadium: T-Mobile Park
  • TV Coverage: NBCSCA, ROOTNW
  • Opening Odds: Mariners -120 | O/U 8 (Line History)
  • Athletics vs Mariners Matchup Report

Opening Odds Analysis

The Mariners come in as the slight home favorites at -120 with the Athletics right behind at -111. The total sits at 8 runs while the UNDER is 8-2 in the last 10 games between these teams.

Starting Pitchers Analysis

Chris Flexen was dominant in his last start against the Athletics on Wednesday, allowing just three hits and one earned run while striking out eight through seven innings. The right-hander has been consistent for the Mariners all year, carrying a 13-6 record with an ERA of 3.56 through 29 starts.

Cole Irvin pitched in that same game last week, taking the loss for Oakland after allowing seven hits and three earned runs through five innings. The southpaw is 10-14 through 30 starts this season with an ERA of 3.99.

Oakland News & Notes

The Athletics’ playoff hopes took a huge blow last week as they were swept by the Mariners in a four-game series in Oakland. They bounced back with a three-game sweep of the Astros, outscoring them 20-6 in the process, but the damage was already done. At 85-71, Oakland now sits three games back of the Boston Red Sox for the second AL wild-card spot with the Mariners and Toronto Blue Jays also in their way.

Matt Olson has led the way offensively for the Athletics this season. With four RBIs in a 14-2 win over the Astros on Friday, the first baseman is up to 109 RBIs to go with his 38 home runs and .272 batting average.

Seattle News & Notes

The Mariners come into Monday as one of the hottest teams in baseball, posting an 8-2 record over their last 10 outings thanks to three straight series wins. Unfortunately, like their opponents, it may be too little, too late. Despite the hot streak, Seattle still sits three games back of the New York Yankees for the first AL wild-card spot and two games back of the Red Sox for the second spot.

With the 23rd-ranked offence in the majors (4.27 runs per game), Seattle has relied heavily on Kyle Seager’s bat. The third baseman knocked in his 100th run of the season against Oakland last week to go along with his 35 home runs.

Staff Betting Pick: UNDER 8 runs

Flexen has posted a stingy 2.93 ERA through his last seven starts while the Mariners offence has been nothing to write home about this season. Add in the fact that the UNDER is 8-2 in the last 10 meetings between these clubs, and you’ve got an easy decision here.

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Shark Bites
  • The UNDER is 6-1 in the last 7 meetings.
  • Seattle is 9-0 in its last 9 games vs Oakland.
  • Oakland is 5-0 in its last 5 road games.