Mariners vs Pirates Prediction 6/23/26 MLB Picks Today

In this article, we will formulate a Mariners vs Pirates Prediction for this MLB matchup on Tuesday, June 23^rd in the opening game of this series. Let’s take a look at the prediction for this MLB matchup.

Pittsburgh Pirates Preview

The Pittsburgh Pirates have a 39-39 record this season and are sitting in the 4th place of the NL Central. They have a 20-19 home record and are coming off an 8-6 road win against the Rockies. They will face the Reds and the Phillies next.

The Pirates have a .255 batting average this season, .335 OBP and .409 Slugging percentage. Pittsburgh’s pitching staff has a 4.17 ERA and 1.31 WHIP. Nick Gonzales is the team’s best hitter with a .293 batting average. Bryan Reynolds leads the team in RBI with 51, while Brandon Lowe adds a team-high 18 home runs.

Mitch Keller (R) is the projected starting pitcher for the Pirates, and he has a 5-4 record, 4.92 ERA and 1.32 WHIP.

Seattle Mariners Preview

The Seattle Mariners have a 40-39 record this season and are sitting in the 1st place of the AL West. They have a 18-20 road record and are coming off a 3-1 home win against the Red Sox. They will face the Guardians and the Angels next.

The Mariners have a .232 batting average this season, .313 OBP and .387 Slugging percentage. Seattle’s pitching staff has a 3.62 ERA and 1.18 WHIP. Randy Arozarena is the team’s best hitter with a .291 batting average. Julio Rodriguez leads the team in RBI with 37, while Luke Raley adds a team-high 14 home runs.

George Kirby (R) is the projected starting pitcher for the Mariners, and he has a 5-7 record, 4.10 ERA and 1.31 WHIP.

Seattle Mariners @ Pittsburgh Pirates Betting Trends: June 23, 2026

• Probable Starting Pitcher: Mitch Keller      Record this season: 5-4      ERA: 4.92
• Home Record: 3-3
• Last 5 against Mariners: 1-1

Why the Pittsburgh Pirates will win

• The Pirates have won four of their last five games as underdogs against American League opponents.
• The Mariners have lost four of their last five games as favorites following a win.
• The Pirates have covered the run line in eight of their last nine night games against American League opponents that held a winning record.
• The Mariners have failed to cover the run line in seven of their last eight games as favorites following a win.
• The Pirates have won the first inning in four of their last five home games against American League opponents.
• The Pirates have led after 3 innings in seven of their last eight games as home underdogs against American League opponents.
• The Pirates have led after 5 innings in four of their last five games as home underdogs against American League opponents.

• Probable Starting Pitcher: George Kirby      Record this season: 5-7      ERA: 4.10
• Road Record: 2-3
• Last 5 against Pirates: 2-1

Why the Seattle Mariners will win

• The Mariners have won each of their last six games against NL Central opponents.
• The Pirates have lost seven of their last eight games against teams that held a winning record.
• The Pirates have failed to cover the run line in seven of their last eight night games at PNC Park following a win.
• The road team has covered the run line in three of the last four games between the Mariners and Pirates.
• The Mariners have led after 3 innings in each of their last five night games against National League opponents.
• The Pirates have trailed after 5 innings in each of their last four games as underdogs.

Total Runs Facts

• Seven of the Mariners’ last eight night games against NL Central opponents have gone UNDER the total runs line.
• Each of the Pirates’ last five home games against American League opponents have gone OVER the total runs line.
• There has been no run scored during the first inning in each of the Mariners’ last four night games at PNC Park.
• There has been at least one run scored in the first inning in five of the Pirates’ last six games as underdogs against American League opponents.

Pittsburgh Pirates Player Prop Facts

• Ryan O’Hearn has hit a home run in three of his last four home appearances against AL opponents.
• Mitch Keller has recorded a win in three of his last four appearances with the Pirates as underdogs against AL opponents.
• Mitch Keller has recorded five or more strikeouts in seven of his last eight appearances against AL West opponents.
• Bryan Reynolds has recorded at least one hit in each of the Pirates’ last 12 games.
• Bryan Reynolds ranks 7th amongst qualified players for On Base Percentage (.400) this season.

Seattle Mariners Player Prop Facts

• Cal Raleigh has hit at least one home run in six of the Mariners’ last eight road games against NL Central opponents.
• Cole Young has recorded at least one hit in each of the Mariners’ last nine games against NL opponents.

Matchup/League Facts

• The Pirates rank 1st in the league for hits this season (688).
• The Pirates are one of only three teams in the league to rank top 10 in both steals and batting average this season.
• The Mariners rank 1st in the league for walks allowed this season (202).
• The Mariners rank 29th in the league for doubles this season (98).

Mariners vs Pirates Prediction

The Mariners have won their last five meetings against the Pirates and have won their last six meetings in Seattle.

In this Mariners vs Pirates Prediction, the Mariners are coming as -130 road favorites. I don’t trust either pitcher in this matchup, as they both been in bad form lately, with Kirby having given up at least three runs in each of his last six starts, while Keller has given up 4+ runs in five of his last seven starts. The Pirates have the 5^th-best offense in baseball, so I expect a high-scoring affair today. Take the over 8.