San Francisco Giants vs Seattle Mariners Betting Pick & Prediction for Game on 7/18

MLB game preview

The San Francisco Giants take on the Seattle Mariners in an MLB regular season game. The Giants have a record of 41-55 and are currently ranked 4th in the NL West. They are on a two-game winning streak and have a 5-5 record in their last 10 games.

The Mariners have a record of 48-49 and sit 2nd in the AL West. They recently secured a win and have a 4-6 record over their last 10 games. The game will be held at T-Mobile Park with a clear sky forecast. The starting pitchers are Logan Webb for the Giants and Bryan Woo for the Mariners.

San Francisco Giants Team Preview

The San Francisco Giants have had mixed results in recent games. They secured wins in three out of their last five games, including a 3-1 victory over the Colorado Rockies on July 12th. Their performance featured solid pitching and consistent hitting, with Trevor McDonald delivering a strong outing with 7 innings pitched and only 1 earned run allowed.

The Giants’ hitting has been a key factor in their recent games. They lead the league in doubles with 179, showcasing their ability to make contact. Key players like Luis Arraez and Rafael Devers have contributed significantly, with Devers leading the team in home runs and RBIs.

Logan Webb is the probable starting pitcher for the Giants’ next game against the Seattle Mariners. Webb has a season record of 5-7 with a 3.86 ERA. His performance will be crucial for the Giants as they aim to continue their winning momentum.

Giants vs Mariners Game Day Info

  • Sport: MLB
  • Teams: San Francisco Giants vs Seattle Mariners
  • Venue: T-Mobile Park in Seattle, WA
  • Date: Saturday, July 18, 2026
  • Betting Odds: Giants +112, Mariners -134

Seattle Mariners Team Preview

The Seattle Mariners recently showed strength with a win over the Tampa Bay Rays on July 12th. They scored 8 runs on 9 hits, with 5 of those being extra-base hits. J.P. Crawford played a key role, going 3-for-4 with 3 RBIs.

In the 2026 season, the Mariners’ batting average is .230, ranking 21st. Their on-base percentage is better, sitting at .310 and ranked 15th. The team has hit 115 home runs, placing them 11th in the league.

Bryan Woo is set to start against the San Francisco Giants. He holds a 7-6 record this season, with a 4.23 ERA. Woo has struck out 102 batters, maintaining a 1.07 WHIP.

BTB Betting Pick

The Seattle Mariners are favored to win with a moneyline of -134. They have a strong pitching edge with an ERA of 3.61, ranked 6th in the league. The Giants have an ERA of 4.47, ranked 22nd, which suggests the Mariners might keep the Giants’ hitters in check. Thus, the recommendation is to pick the Mariners to win.

The total for this game is set at 7.0. The Mariners’ strong pitching and the Giants’ decent hitting suggest a low-scoring game. The Giants have a high strikeout rate, and the Mariners’ pitching is among the best in limiting home runs. The projected score is Mariners 4, Giants 3, so the recommendation is to take the under at 7.0.