In this article, we will formulate a Giants vs Mariners Prediction for this MLB matchup on Sunday, July 19th 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 49-50 record this season and are sitting in the 2nd place of the AL West. They have a 28-21 home record and are coming off a 4-3 home win against the Giants. They will face the Reds and the Rangers next.
The Seattle Mariners have a .227 batting average this season, .309 OBP and .375 Slugging percentage. Seattle’s pitching staff has a 3.62 ERA and 1.18 WHIP. Randy Arozarena is the team’s best hitter with a .281 batting average. Cole Young leads the team in RBI with 46, while Dominic Canzone adds a team-high 15 home runs.
Logan Gilbert (R) is the projected starting pitcher for the Seattle Mariners, and he has a 7-6 record, 3.32 ERA and 0.99 WHIP.
San Francisco Giants Preview
The San Francisco Giants have a 42-56 record this season and are sitting in the 4th place of the NL West. They have a 20-31 away record and are coming off a 3-4 road loss against the Mariners. They will face the Royals and the Angels next.
The San Francisco Giants have a .256 batting average this season, .310 OBP and .419 Slugging percentage. San Francisco’s pitching staff has a 4.40 ERA and 1.35 WHIP. Luis Arraez is the team’s best hitter with a .327 batting average. Rafael Devers leads the team in RBI with 53, adding a team-high 20 home runs.
Robbie Ray (L) is the projected starting pitcher for the San Francisco Giants, and he has a 8-6 record, 3.38 ERA and 1.27 WHIP.
San Francisco Giants @ Seattle Mariners Betting Trends: July 19, 2026
- Probable Starting Pitcher: Logan Gilbert Record this season: 7-6 ERA: 3.32
- Home Record: 6-3
- Last 5 against Giants: 1-0
Why the Seattle Mariners will win
- The Giants have lost each of their last seven day games against American League opponents following a road loss.
- The Mariners have won each of their last eight games as home favorites after going to extra innings.
- The Mariners have covered the run line each of their last six day games against teams that held a losing record.
- The Giants have failed to cover the run line in each of their last five day games after going to extra innings.
- The Giants have trailed after 3 innings in each of their last four day games.
- The Giants have lost the first inning in three of their last four day games.
- The Mariners have led after 5 innings in each of their last four home day games.
- Probable Starting Pitcher: Robbie Ray Record this season: 8-6 ERA: 3.38
- Road Record: 3-5
- Last 5 against Mariners: 2-0
Why the San Francisco Giants will win
- The Mariners have lost each of their last six games as favorites against the Giants following a win.
- The Giants have won each of their last four games as underdogs against the Mariners following a road loss.
- The underdogs have covered the run line in each of the Giants’ last 11 games at T-Mobile Park.
- The Mariners have failed to cover the run line in each of their last seven games as favorites against National League opponents.
- The Mariners have trailed after 5 innings in each of their last 10 games against National League opponents.
- The Mariners have trailed after 3 innings in five of their last six games against National League opponents.
Total Runs Facts
- Each of the Giants’ last five games following an extra innings loss have gone UNDER the total runs line.
- Four of the Mariners’ last five day games as favorites have gone UNDER the total runs line.
- There has been no run scored during the first inning in each of the Mariners’ last 13 games.
- There has been no run scored during the first inning in each of the Giants’ last six games against AL West opponents.
Seattle Mariners Player Prop Facts
- Logan Gilbert has recorded a win in each of his last five home appearances against opponents that held a losing record.
- Logan Gilbert has recorded seven or more strikeouts in each of his last seven home appearances against opponents that held a losing record.
- Randy Arozarena has recorded at least one hit in each of his last nine Sunday appearances against NL teams that held a losing record.
- Dominic Canzone has hit a home run in each of his last two appearances in day games against teams that held a losing record.
San Francisco Giants Player Prop Facts
- Willy Adames has hit a home run in each of the Giants’ last three games against AL West opponents.
- Robbie Ray has recorded a win in four of his last five appearances.
- Robbie Ray has recorded six or more strikeouts in each of his last seven appearances in day games against teams that held a losing record.
- Heliot Ramos has recorded at least one hit in each of his last 13 road appearances against opponents that held a losing record.
- Luis Arraez ranks 2nd in the league in Hits (121) this season.
Matchup/League Facts
- The Mariners rank 1st in the league for walks allowed this season (247).
- The Mariners rank 1st in the league for walks allowed this season (247).
- The Giants rank 30th in the league for walks this season (245).
- The Giants rank 30th in the league for walks this season (245).
Giants vs Mariners Prediction
The Giants are 4-1 in their 5 meetings against the Mariners but have lost two of their last three visits in Seattle.
In this Giants vs Mariners Prediction, the Mariners are coming as -180 home favorites. The Mariners are being overvalued in this spot, but I prefer the total in this game. Two excellent pitchers who have a combined 6.70 ERA and two offenses that have been struggling lately will result in a low-scoring game. Both games in this series had 7 total runs and the Mariners have been bad against left-handed pitching, so I like the under in this one.