San Francisco Giants vs St. Louis Cardinals Prediction 9/8/26 MLB Picks Today

The St. Louis Cardinals and the San Francisco Giants meet Tuesday in MLB action from Coors Field. We will look at this from a betting perspective and determine the best bets for this game. Here’s a St. Louis Cardinals vs. San Francisco Giants prediction.

Starting Pitching Matchup

The St. Louis Cardinals will send out Quinn Mathews for the start here and Mathews is 1-2 with a 4.38 ERA and 24 strikeouts this season. Landen Roupp will start for San Francisco and is 8-13 with a 4.17 ERA and 137 strikeouts this season.

St. Louis Cardinals Recap

The St. Louis Cardinals come into this game looking to bounce back from a 5-4 loss at the hands of the Giants on Monday to sit at 72-73 this season. After this series, the Cardinals will head home for a series against the Chicago White Sox.

Cardinals Alternate Wins & Losses In 6 Straight

Entering Monday, Jordan Walker has 156 hits, 32 doubles, 28 home runs and 100 RBIs while Alec Burleson has 155 hits with 34 doubles, 21 home runs and 103 RBIs. JJ Wetherholt has 122 hits with 17 home runs and 48 RBIs while Ivan Herrera has 136 hits with 25 doubles, 16 home runs and 64 RBIs. Masyn Winn’s added 103 hits with 19 doubles and 51 RBIs and Nathan Church has 91 hits with 10 home runs and 48 RBIs this season.

San Francisco Giants Recap

The San Francisco Giants come into this game looking to add on to their win over the Cardinals from Monday’s matchup to sit at 60-85 this season. After this series, the Giants will take on the San Diego Padres in a series at home.

Giants Looking For Consistency Down The Stretch

Going into Monday, 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 139 hits with 28 doubles, 4 triples, 9 home runs and 53 RBIs. Rafael Devers also has 140 hits with 34 doubles, 35 home runs and 91 RBIs but also has 158 strikeouts this season.

St. Louis Cardinals @ San Francisco Giants Betting Trends: September 8, 2026

• Probable Starting Pitcher: Landen Roupp      Record this season: 8-13      ERA: 4.17
• Home Record: 4-7
• Last 5 against Cardinals: 0-1

Why the San Francisco Giants will win

• The Cardinals have lost eight of their last nine games after going to extra innings.
• The Giants have won each of their last six night games against the Cardinals following a home win.
• The Giants have covered the run line each of their last five night games against NL Central opponents that held a losing record.
• The Cardinals have failed to cover the run line in five of their last six night games against NL West opponents that held a losing record.
• The Cardinals have trailed after 5 innings in each of their last nine Tuesday games against NL West opponents that held a losing record.
• The Giants have led after 3 innings in four of their last five home games against NL Central opponents.
• The Giants have won the first inning in five of their last six night games at Oracle Park.

• Probable Starting Pitcher: Quinn Mathews      Record this season: 1-2      ERA: 4.38
• Road Record: 0-2
• Last 5 against Giants: –

Why the St. Louis Cardinals will win

• The Cardinals have won each of their last seven night games against NL West opponents following a road loss.
• The Giants have lost nine of their last 11 games as favorites against NL opponents following a win.
• The Cardinals have covered the run line in each of their last 10 games as underdogs against the Giants.
• The Giants have failed to cover the run line in nine of their last 10 games as home favorites against NL Central opponents following a win.
• The Cardinals have led after 5 innings in eight of their last 10 road games against opponents that held a losing record.
• The Cardinals have led after 3 innings in three of their last four night games.

Total Runs Facts

• Eleven of the Cardinals’ last 12 road games have gone OVER the total runs line.
• Six of the Giants’ last seven night games against NL opponents have gone OVER the total runs line.
• There has been at least one run scored in the first inning in each of the Giants’ last 11 night games.
• There has been at least one run scored in the first inning in six of the Cardinals’ last seven games as road underdogs.

San Francisco Giants Player Prop Facts

• Rafael Devers has hit a home run in each of the Giants’ last five night games against opponents that held a losing record.
• Rafael Devers has recorded at least one hit in each of the Giants’ last 12 night games against NL opponents that held a losing record.
• Rafael Devers ranks 8th in the league in Home Runs (35) this season.

St. Louis Cardinals Player Prop Facts

• Ivan Herrera has hit a home run in four of the Cardinals’ last seven road games against NL West opponents that held a losing record.
• Ivan Herrera has recorded at least one hit in each of the Cardinals’ last 14 games against NL West opponents that held a losing record.
• Jordan Walker ranks T6th in the league in Hits (157) this season.

Matchup/League Facts

• The Giants rank 30th in the league for walks this season (402).
• The Giants rank T1st in the league for home runs allowed this season (139).
• The Cardinals rank 26th in the league for opponent batting average this season (.255).
• The Cardinals rank T5th in the league for home runs allowed this season (144).

St. Louis Cardinals vs. San Francisco Giants Prediction

I’m on the Giants here. Roupp hasn’t had the biggest amount of success for San Francisco this season but a lot of that has to do with an offense that a lot of times refused to back him up. St. Louis is the better team that’s attempting to play for something, but I don’t think the Giants back down here. I don’t love Quinn Mathews as a starting option, and I think the Giants do enough to pick up another win and deal another blow to St. Louis’ playoff hopes. Give me the Giants.