San Diego Padres vs San Francisco Giants Prediction 9/12/2026 Today’s MLB Picks

The San Diego Padres and the San Francisco Giants meet Saturday in MLB action from Oracle Park. We will look at this from a betting perspective and determine the best bets for this game. Here’s a San Diego Padres vs. San Francisco Giants prediction.

Starting Pitching Matchup

The San Diego Padres will send out Michael King for the start here and King is 10-9 with a 3.00 ERA and 144 strikeouts this season. Cesar Perdomo will start for the Giants and is 0-0 with a 0.90 ERA and 8 strikeouts this season.

San Diego Padres Recap

The San Diego Padres come into this game looking to add on to their 7-5 win over the Giants last time out to sit at 79-68 this season. After this series, the Padres will head on the road for a game against the Colorado Rockies.

Padres Win 5th Straight

Going into Friday, Jackson Merrill has 135 hits with 23 doubles, 24 home runs and 79 RBIs while Gavin Sheets has 75 hits with 15 doubles, 16 home runs and 46 RBIs as well on the year. Fernando Tatis Jr. has 161 hits with 29 doubles, 20 home runs and 72 RBIs and Xander Bogaerts has 103 hits with 14 doubles, 11 home runs and 52 RBIs. Manny Machado also has 118 hits with 22 doubles, 26 home runs and 80 RBIs as well on the year.

San Francisco Giants Recap

The San Francisco Giants come into this game looking to bounce back from their loss at the hands of the Padres on Friday to sit at 62-86 this season. After this series, the Giants will have a series rematch against the Cardinals on the road.

Giants Have Three-Game Win Streak Snapped

Entering Friday, Willy Adames has 107 hits with 25 doubles, 21 home runs and 51 RBIs along with 139 strikeouts. Matt Chapman has 72 hits with 18 doubles, a triple, 7 home runs and 42 RBIs and Jung Hoo Lee has 142 hits with 29 doubles, 4 triples, 9 home runs and 55 RBIs. Rafael Devers also has 142 hits with 36 doubles, 35 home runs and 92 RBIs but also has 159 strikeouts this season.

San Diego Padres @ San Francisco Giants Betting Trends: September 12, 2026

• Probable Starting Pitcher: Cesar Perdomo      Record this season: 0-0      ERA: 0.90
• Home Record: 0-0
• Last 5 against Padres: –

Why the San Francisco Giants will win

• The Padres have lost each of their last four games as favorites following a road win.
• The Giants have won four of their last five games as home underdogs following a loss.
• The Giants have covered the run line in each of their last four games as underdogs against the Padres following a loss.
• The Padres have failed to cover the run line in six of their last seven games after playing the previous day.
• The Giants have won the first inning in each of their last five home games.
• The Padres have trailed after 5 innings in three of their last four road day games.

• Probable Starting Pitcher: Michael King      Record this season: 10-9      ERA: 3.00
• Road Record: 4-5
• Last 5 against Giants: 3-1

Why the San Diego Padres will win

• The Padres have won each of their last 11 day games against NL West opponents that held a losing record.
• The Giants have lost each of their last seven day games against NL West opponents that held a winning record.
• The Padres have covered the run line in 10 of their last 11 day games against NL West opponents that held a losing record.
• The Giants have failed to cover the run line in each of their last four home games against the Padres following a home loss.
• The Padres have led after 3 innings in four of their last five games.
• The Padres have led after 5 innings in each of their last seven Saturday games against NL West opponents that held a losing record.

Total Runs Facts

• Four of the Giants’ last five home games have gone OVER the total runs line.
• Four of the Padres’ last five games as favorites against NL West opponents have gone OVER the total runs line.
• There has been no run scored during the first inning in each of the Padres’ last seven day games against NL West opponents.
• There has been no run scored during the first inning in each of the Giants’ last eight Saturday day games at Oracle Park.

San Francisco Giants Player Prop Facts

• Rafael Devers has recorded at least one hit in each of the Giants’ last 10 games against NL West opponents.
• Rafael Devers has hit a home run in each of the Giants’ last two games against the Padres.

San Diego Padres Player Prop Facts

• Michael King has recorded a win in four of his last five appearances against NL West opponents that held a losing record.
• Michael King has recorded six or more strikeouts in each of his three previous appearances with the Padres as favorites against the Giants.
• Xander Bogaerts has hit a home run in two of the Padres’ last three road games against the Giants.
• Fernando Tatis Jr. has recorded at least one hit in each of the Padres’ last 11 games as road favorites.

Matchup/League Facts

• The Giants rank 1st in the league for home runs allowed this season (140).
• The Giants rank 29th in the league for walks this season (412).
• The Padres rank 4th in the league for steals this season (144).
• The Padres rank 26th in the league for hits this season (1154).

San Diego Padres vs. San Francisco Giants Prediction

I’m on the under in this one. The Padres have been a roller coaster team against left-handed pitching this season and Perdomo’s been decent in his limited action. On the other side, San Diego has arguably their ace going in Michael King and I think this ends up being a lot more of a pitcher’s duel than Friday’s opener. I think this is going to be a low-scoring game so give me the under.

Chris Ruffolo's Pick: Under 8