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Athletics vs Mariners Prediction 9/11/26 MLB Picks Today

Seattle Mariners (69-78) vs. Athletics (59-88)
September 11, 2026 9:40 pm EDT
The Line: Athletics 138 / Seattle Mariners -168; Over/Under: 10
(Get latest betting odds)

The Seattle Mariners and Athletics meet Friday in MLB action at Sutter Health Park. Here’s an Athletics vs Mariners Prediction. This article will include an Athletics vs Mariners Pick.

Seattle Mariners Betting Preview

The Seattle Mariners are 69-78 on the year and play the Angels and Rockies next. The Seattle Mariners are batting .229 on the season, have a .309 OBP, and have a .373 slugging percentage. The Seattle Mariners’ pitching staff has a 4.21 ERA and a 1.25 WHIP. Josh Naylor leads the Seattle Mariners with 142 hits and 49 RBI, while Cole Young and Randy Arozarena have combined for 271 hits and 127 RBI.

George Kirby gets the ball for the Seattle Mariners, and he is 9-11 with a 4.18 ERA and 133 strikeouts this season. Kirby is 5-1 with a 3.72 ERA and 56 strikeouts in his career against the Athletics.

Athletics Betting Preview

The Athletics are 59-88 on the year and play the Guardians and Rays next. The Athletics are batting .245 on the season, have a .318 OBP, and have a .403 slugging percentage. The Athletics’ pitching staff has a 5.35 ERA and a 1.49 WHIP. Jeff McNeil leads the Athletics with 114 hits and 53 RBI, while Shea Langeliers and Henry Bolte have combined for 198 hits and 84 RBI.

Jeffrey Springs gets the ball for the Athletics, and he is 4-13 with a 6.02 ERA and 104 strikeouts this season. Springs is 4-1 with a 2.04 ERA and 57 strikeouts in his career against the Seattle Mariners.

Why the Athletics will win

  • The Mariners have lost each of their last eight games as road favorites.
  • The Athletics have won four of their last five games as underdogs against AL West opponents.
  • The Mariners have failed to cover the run line in each of their last 10 games as road favorites.
  • The underdogs have covered the run line in 11 of the Mariners’ last 12 games.
  • The Mariners have trailed after 5 innings in nine of their last 10 games as road favorites.
  • The Mariners have trailed after 3 innings in five of their last six games as road favorites.
  • The Mariners have lost the first inning in each of their last four games as road favorites.

Why the Seattle Mariners will win

  • The Athletics have lost nine of their last 10 home games following a win.
  • The Mariners have won each of their last five road games against AL West opponents following a home win.
  • The Athletics have failed to cover the run line in each of their last nine home games against AL West opponents following a win.
  • The road team has covered the run line in nine of the Mariners’ last 10 games.
  • The Athletics have trailed after 5 innings in each of their last five home games against opponents that held a losing record.
  • The Athletics have trailed after 3 innings in four of their last five home games against opponents that held a losing record.
  • The Mariners have won the first inning in each of their last three road games against AL West opponents that held a losing record.

Total Runs Facts

  • Each of the Mariners’ last seven night games against AL opponents have gone OVER the total runs line.
  • Seven of the Athletics’ last eight 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 eight road games against AL West opponents.
  • There has been at least one run scored in the first inning in seven of Jeffrey Springs’ last eight home appearances as a starter.

Athletics Player Prop Facts

  • Max Muncy has hit a home run in each of his last two appearances in night games against teams that held a losing record.
  • Jeffrey Springs has recorded five or more strikeouts in each of his four previous appearances with the Athletics as home underdogs against AL West opponents.
  • Carlos Cortes has recorded at least one hit in each of his last seven appearances in night games.
  • Jeffrey Springs has recorded a win in four of his last five appearances with his team as a home underdog against AL West opponents.

Seattle Mariners Player Prop Facts

  • Julio Rodriguez has hit a home run in each of the Mariners’ last two games at Sutter Health Park against opponents that held a losing record.
  • George Kirby has recorded five or more strikeouts in each of his last six appearances against opponents that held a losing record.
  • Dominic Canzone has recorded at least one hit in each of the Mariners’ last nine night games.
  • George Kirby has recorded a win in each of his last six road appearances against AL West opponents that held a losing record.

Matchup/League Facts

  • The Athletics rank 29th in the league for ERA this season (5.35).
  • 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 (581).
  • The Mariners rank 30th in the league for hits this season (1112).

Athletics vs Mariners Prediction

If the Mariners are going to make a last-second playoff push, they need to handle business in this series against an A’s team going nowhere fast. Kirby has been shaky this season, but it’s nothing compared to Springs and his 6.02 ERA and 1.45 WHIP. Again, there are no excuses for the Mariners. These games are must-wins. I’ll roll with the Mariners and lay the RL to shave down the price.

Randy Chambers's Free Pick: Seattle Mariners -1.5

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Randy Chambers

Randy has covered sports betting since 2014 and writes about everything from NFL to WNBA. Follow Randy Chambers on Twitter.

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