In this article, we will formulate a Rays vs Mariners Prediction for this MLB matchup on Saturday, August 9th in the third game of this series. Let’s take a look at the prediction for this MLB matchup.
Seattle Mariners Preview
The Seattle Mariners have a 56-62 record this season and are sitting in the 3rd place of the AL West. They have a 33-28 home record and are coming off a 2-3 home loss against the Rays. They will face the Yankees and the Astros next.
The Seattle Mariners have a .229 batting average this season, .308 OBP and .376 Slugging percentage. Seattle’s pitching staff has a 3.78 ERA and 1.20 WHIP. Randy Arozarena is the team’s best hitter with a .279 batting average. Julio Rodriguez leads the team in RBI with 51, adding a team-high 18 home runs.
Emerson Hancock (R) is the projected starting pitcher for the Mariners, and he has a 6-6 record, 3.33 ERA and 1.07 WHIP.
Tampa Bay Rays Preview
The Tampa Bay Rays have a 70-46 record this season and are sitting in the 1st place of the AL East. They have a 29-28 away record and are coming off a 3-2 road win against the Mariners. They will face the Athletics and the Orioles next.
The Tampa Bay Rays have a .258 batting average this season, .328 OBP and .402 Slugging percentage. Tampa Bay’s pitching staff has a 3.70 ERA and 1.15 WHIP. Chandler Simpson is the team’s best hitter with a .298 batting average. Jonathan Aranda leads the team in RBI with 72, while Junior Caminero adds a team-high 33 home runs.
Ian Seymour (L) is the projected starting pitcher for the Rays, and he has a 8-3 record, 4.27 ERA and 1.13 WHIP.
Tampa Bay Rays @ Seattle Mariners Betting Trends: August 9, 2026
- Probable Starting Pitcher: Emerson Hancock Record this season: 6-6 ERA: 3.33
- Home Record: 3-3
- Last 5 against Rays: 0-0
Why the Seattle Mariners will win
- The Mariners have won seven of their last eight day games against American League opponents following a home loss.
- The Rays have lost five of their last six day games following a road win.
- The Rays have failed to cover the run line in each of their last six day games against American League opponents.
- The Mariners have covered the run line each of their last seven Sunday day games against American League opponents that held a winning record.
- The Mariners have led after 3 innings in five of their last six home games against opponents that held a winning record.
- The Mariners have led after 5 innings in each of their last four day games at T-Mobile Park against AL East opponents.
- Probable Starting Pitcher: Ian Seymour Record this season: 8-3 ERA: 4.27
- Road Record: 4-1
- Last 5 against Mariners: 0-1
Why the Tampa Bay Rays will win
- The Rays have won each of their last five games as underdogs.
- The Mariners have lost four of their last five games as favorites.
- The road team has covered the run line in each of the Rays’ last nine games.
- The Mariners have failed to cover the run line in 12 of their last 13 games as favorites.
- The Rays have led after 3 innings in six of their last eight games against the Mariners.
- The Mariners have trailed after 5 innings in 12 of their last 15 games against opponents that held a winning record.
Total Runs Facts
- Nine of the Rays’ last 10 games against American League opponents have gone UNDER the total runs line.
- Six of the Mariners’ last seven home games against AL East opponents have gone UNDER the total runs line.
- There has been no run scored during the first inning in each of the Mariners’ last nine games against AL East opponents.
- There has been no run scored during the first inning in eight of the Rays’ last nine games against AL West opponents.
Seattle Mariners Player Prop Facts
- Emerson Hancock has recorded five or more strikeouts in four of his last five home appearances.
- Randy Arozarena has hit a home run in each of the Mariners’ last four day games against opponents that held a winning record.
- Julio Rodriguez has recorded at least one hit in each of his last 14 home appearances after playing the previous day.
Tampa Bay Rays Player Prop Facts
- Victor Mesa Jr. has hit a home run in four of his last six appearances with the Rays as underdogs.
- Jonathan Aranda has recorded at least one hit in each of the Rays’ last 10 games against AL West opponents.
- Ian Seymour has recorded seven or more strikeouts in four of his last five appearances against opponents that held a losing record.
- Junior Caminero ranks T2nd in the league in Home Runs (33) this season.
Matchup/League Facts
- The Mariners rank 30th in the league for runs scored this season (461).
- The Mariners rank 30th in the league for doubles this season (142).
- The Rays rank 1st in the league for strikeouts against this season (834).
- The Rays rank 2nd in the league for batting average this season (.258).
Rays vs Mariners Prediction
The Rays are 7-2 in their last 9 meetings against the Mariners and have won their last two visits in Seattle.
In this Rays vs Mariners Prediction, the Mariners are coming as -115 home favorites. I have to stick with the Rays in this series, as they have been the far better team lately and will be facing a struggling Emerson Hancock, who has given up 8 runs across his last three starts. On the flip side, Seymour has given up just four runs in his last three starts and he will face a terrible Mariners offense that averages just 1.8 runs per game against lefties in their last 5 games. Take the Rays in this one.