Giants vs Marlins Prediction 6/21/26 MLB Picks Today

In this article, we will formulate a Giants vs Marlins Prediction for this MLB matchup on Sunday, June 21^st in the third game of this series. Let’s take a look at the prediction for this MLB matchup.

Miami Marlins Preview

The Miami Marlins have a 39-38 record this season and are sitting in the 4th place of the NL East. They have a 25-16 home record and are coming off a 6-3 home win against the Giants. They will face the Rangers and the Cardinals next.

The Marlins have a .246 batting average this season, .324 OBP and .387 Slugging percentage. Miami’s pitching staff has a 4.11 ERA and 1.26 WHIP. Otto Lopez is the team’s best hitter with a .332 batting average. Liam Hicks leads the team in RBI with 53, adding a team-high 13 home runs.

Ryan Gusto (R) is the projected starting pitcher for the Marlins, and he has a 0-2 record, 7.24 ERA and 1.76 WHIP.

San Francisco Giants Preview

The San Francisco Giants have a 31-45 record this season and are sitting in the 4th place of the NL West. They have a 17-25 road record and are coming off a 3-6 road defeat against the Marlins. They will face the Athletics and the Braves next.

The Giants have a .259 batting average this season, .310 OBP and .421 Slugging percentage. San Francisco’s pitching staff has a 4.49 ERA and 1.40 WHIP. Jung Hoo Lee is the team’s best hitter with a .331 batting average. Matt Chapman leads the team in RBI with 41, while Casey Schmitt adds a team-high 16 home runs.

Logan Webb (R) is the projected starting pitcher for the Giants, and he has a 4-4 record, 3.46 ERA and 1.15 WHIP.

San Francisco Giants @ Miami Marlins Betting Trends: June 21, 2026

• Probable Starting Pitcher: Ryan Gusto      Record this season: 0-2      ERA: 7.24
• Home Record: 0-1
• Last 5 against Giants: 0-0

Why the Miami Marlins will win

• The Marlins have won each of their last nine games as underdogs against NL West opponents following a win.
• The Giants have lost four of their last five games as road favorites.
• The Marlins have covered the run line in each of their last nine games as underdogs against NL West opponents following a win.
• The Giants have failed to cover the run line in each of their last seven games as favorites against NL East opponents following a loss.
• The Giants have lost the first inning in four of their last five road games against NL East opponents.
• The Marlins have led after 5 innings in each of their last nine games against NL West opponents.
• The Marlins have led after 3 innings in each of their last four day games against the Giants.

• Probable Starting Pitcher: Logan Webb      Record this season: 4-4      ERA: 3.46
• Road Record: 3-1
• Last 5 against Marlins: 0-2

Why the San Francisco Giants will win

• The Giants have won each of their last nine games as favorites against the Marlins following a road loss.
• The Marlins have lost nine of their last 10 day games against the Giants following a home win.
• The Giants have covered the run line each of their last seven road games against teams that held a winning record.
• The Marlins have failed to cover the run line in each of their last six games as home underdogs against the Giants following a win.
• The Giants have led after 3 innings in four of their last five road games against NL East opponents that held a winning record.
• The Giants have led after 5 innings in four of their last five road games against NL East opponents that held a winning record.

Total Runs Facts

• Seven of the Marlins’ last eight home games after playing the previous day have gone UNDER the total runs line.
• Each of the Giants’ last three games as favorites against the Marlins 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 six road games against NL East opponents.
• There has been no run scored during the first inning in eight of the last nine day games between the Giants and Marlins at LoanDepot Park.

Miami Marlins Player Prop Facts

• Kyle Stowers has hit at least one home run in each of the Marlins’ last two games as home underdogs against NL opponents.
• Otto Lopez has recorded at least one hit in each of the Marlins’ last eight games against NL West opponents.
• Otto Lopez ranks 1st in the league in Hits (100) this season.

San Francisco Giants Player Prop Facts

• Rafael Devers has hit a home run in four of the Giants’ last five day games against NL East opponents that held a winning record.
• Logan Webb has recorded seven or more strikeouts in four of his five previous appearances in day games against NL East teams that held a winning record.
• Logan Webb has recorded a win in four of his last five appearances with the Giants as road favorites against NL opponents.
• Heliot Ramos has recorded at least one hit in each of his last 15 appearances with the Giants as road favorites.
• Luis Arraez ranks 2nd in the league in Hits (94) this season.

Matchup/League Facts

• The Marlins rank 1st in the league for steals this season (87).
• The Marlins rank T3rd in the league for triples this season (15).
• The Giants rank 1st in the league for hits this season (680).
• The Giants rank 1st in the league for doubles this season (151).

Giants vs Marlins Prediction

The Marlins are 6-2 in their last 9 meetings against the Giants and are 3-1 in their last 4 meetings in Miami.

In this Giants vs Marlins Prediction, the Giants are coming as -160 road favorites. I’m with the Giants in this one with the red-hot Logan Webb on the mound, who has been unhittable as of late, with just two earned runs across his last four starts. He will go up against Ryan Gusto, who has given up 8 runs in two of his three starts combined, having struck out just twice in those two games. Take the Giants here to win and avoid the series sweep on the road.