Seattle Mariners vs Cleveland Guardians Prediction 6/26/2026 Today’s MLB Picks

In this article, we will formulate a Mariners vs Guardians Prediction for this MLB matchup on Friday, June 26th in the opening game of this series. Let’s take a look at the prediction for this MLB matchup.

Cleveland Guardians Preview

The Cleveland Guardians have a 42-39 record this season and are sitting in the 2nd place of the AL Central. They have a 19-17 home record and are coming off a 4-3 road win against the White Sox. They will face the Rangers and the White Sox next.

The Guardians have a .228 batting average this season, .313 OBP and .366 Slugging percentage. Cleveland’s pitching staff has a 3.79 ERA and 1.25 WHIP. Brayan Rocchio is the team’s best hitter with a .269 batting average. Chase DeLauter leads the team in RBI with 34, while Angel Martinez adds a team-high 11 home runs.

Joey Cantillo (L) is the projected starting pitcher for the Guardians, and he has a 6-3 record, 4.05 ERA and 1.40 WHIP.

Seattle Mariners Preview

The Seattle Mariners have a 41-41 record this season and are sitting in the 1st place of the AL West. They have a 19-22 road record and are coming off a 1-5 road defeat against the Pirates. They will face the Angels and the Blue Jays next.

The Mariners have a .231 batting average this season, .311 OBP and .384 Slugging percentage. Seattle’s pitching staff has a 3.71 ERA and 1.19 WHIP. Randy Arozarena is the team’s best hitter with a .284 batting average. Julio Rodriguez leads the team in RBI with 38, while Luke Raley adds a team-high 14 home runs.

Luis Castillo (R) is the projected starting pitcher for the Mariners, and he has a 2-6 record, 5.22 ERA and 1.40 WHIP.

Seattle Mariners @ Cleveland Guardians Betting Trends: June 26, 2026

• Probable Starting Pitcher: Joey Cantillo      Record this season: 6-3      ERA: 4.05
• Home Record: 3-1
• Last 5 against Mariners: 0-0

Why the Cleveland Guardians will win

• The Guardians have won each of their last five night games following an extra innings win.
• The Mariners have lost each of their last four road games after playing the previous day.
• The Guardians have covered the run line in each of their last 10 night games after going to extra innings.
• The Mariners have failed to cover the run line in eight of their last nine road games.
• The Guardians have led after 3 innings in each of their last four games as favorites against AL West opponents.
• The Guardians have led after 5 innings in each of their last seven night games against AL West opponents.

• Probable Starting Pitcher: Luis Castillo      Record this season: 2-6      ERA: 5.22
• Road Record: 1-4
• Last 5 against Guardians: 1-2

Why the Seattle Mariners will win

• The Guardians have lost four of their last five games as home favorites.
• The Mariners have won four of their last five games as underdogs against the Guardians following a loss.
• The Guardians have failed to cover the run line in each of their last 13 games as favorites.
• The underdogs have covered the run line in each of the Guardians’ last 11 games at Progressive Field.
• The Guardians have lost the first inning in three of their last four games against AL West opponents.
• The Mariners have led after 3 innings in each of their last six night games against opponents that held a winning record.
• The Mariners have led after 5 innings in each of their last six night games against opponents that held a winning record.

Total Runs Facts

• Each of the Guardians’ last four games as favorites against the Mariners have gone OVER the total runs line.
• Six of the Mariners’ last seven games as underdogs against American League opponents have gone UNDER the total runs line.
• There has been at least one run scored in the first inning in seven of the Mariners’ last eight night games against AL Central opponents.
• There has been no run scored during the first inning in each of the Guardians’ last four games as favorites.

Cleveland Guardians Player Prop Facts

• Kyle Manzardo has hit a home run in two of the Guardians’ last three home games against the Mariners.
• Steven Kwan has recorded at least one hit in each of the Guardians’ last eight home games against the Mariners.
• Joey Cantillo has recorded a win in three of his last four home appearances against AL opponents.

Seattle Mariners Player Prop Facts

• Luis Castillo has recorded five or more strikeouts in each of his last four road appearances against AL opponents.
• Julio Rodriguez has recorded at least one hit in each of the Mariners’ last nine games against AL opponents that held a winning record.
• Luke Raley has hit a home run in three of the Mariners’ last four games against the Guardians.
• Randy Arozarena ranks T6th in the league in Steals (19) this season.

Matchup/League Facts

• The Guardians rank 29th in the league for slugging percentage this season (.366).
• The Guardians rank 28th in the league for runs scored this season (320).
• The Mariners rank 1st in the league for walks allowed this season (209).
• The Mariners rank 29th in the league for doubles this season (102).

Mariners vs Guardians Prediction

Both teams are tied 4-4 in their last 8 meetings and the Guardians have won two of their last three meetings in Cleveland.

In this Mariners vs Guardians Prediction, the Guardians are coming as -115 home favorites. I like the Guardians in this one at home, as the Mariners have scored just two runs in their last two games and Castillo has been shaky this season. On top of that, Seattle has been struggling against lefties and Cantillo is coming off back-to-back quality starts and has been better at home. Take the Guardians in this one.

Nikos Lagouretos's Pick: Cleveland Guardians ML