Los Angeles Angels vs Seattle Mariners Prediction 6/29/2026 Today’s MLB Picks

In this article, we will formulate an Angels vs Mariners Prediction for this MLB matchup on Monday, June 29th in the opening game of this series. Let’s take a look at the prediction for this MLB matchup.

Seattle Mariners Preview

The Seattle Mariners have a 42‑43 record this season and are sitting in the 2nd place of the AL West. They have a 22‑19 home record and are coming off a 5‑6 road defeat against the Guardians. They will face the Blue Jays and the Marlins next.

The Mariners have a .232 batting average this season, .313 OBP and .382 Slugging percentage. Seattle’s pitching staff has a 3.72 ERA and 1.19 WHIP. Randy Arozarena is the team’s best hitter with a .283 batting average. Julio Rodriguez leads the team in RBI with 40, 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 6‑7 record, 3.94 ERA and 1.34 WHIP.

Los Angeles Angels Preview

The Los Angeles Angels have a 36‑49 record this season and are sitting in the 5th place of the AL West. They have a 15‑27 road record and are coming off a 4‑1 home win against the Athletics. They will face the Red Sox and the Rangers next.

The Angels have a .240 batting average this season, .318 OBP and .398 Slugging percentage. Los Angeles’ pitching staff has a 4.59 ERA and 1.40 WHIP. Nolan Schanuel is the team’s best hitter with a .262 batting average. Jo Adell leads the team in RBI with 45, while Mike Trout adds a team‑high 17 home runs.

Ryan Johnson (R) is the projected starting pitcher for the Angels, and he has a 1‑2 record, 8.84 ERA and 1.71 WHIP.

Los Angeles Angels @ Seattle Mariners Betting Trends: June 29, 2026

• Probable Starting Pitcher: George Kirby      Record this season: 6-7      ERA: 3.94
• Home Record: 3-4
• Last 5 against Angels: 4-1

Why the Seattle Mariners will win

• The Mariners have won each of their last nine home games against AL West opponents that held a losing record.
• The Angels have lost each of their last six games at T-Mobile Park.
• The Mariners have covered the run line in seven of their last eight night games following a road loss.
• The Angels have failed to cover the run line in four of their last five games as underdogs following a win.
• The Mariners have led after 5 innings in each of their last seven games against AL West opponents.
• The Mariners have won the first inning in each of their last six home games against AL West opponents that held a losing record.
• The Angels have trailed after 3 innings in each of their last five road games against opponents that held a losing record.

• Probable Starting Pitcher: Ryan Johnson      Record this season: 1-2      ERA: 8.84
• Road Record: 0-2
• Last 5 against Mariners: 0-0

Why the Los Angeles Angels will win

• The Mariners have lost four of their last five games as favorites after playing the previous day.
• The Angels have won eight of their last nine Monday night games as road underdogs against AL West opponents.
• The Angels have covered the run line in each of their last eight Monday night games against AL West opponents.
• The Mariners have failed to cover the run line in seven of their last eight night games against teams that held a losing record.
• The Mariners have trailed after 5 innings in each of their last four night games against opponents that held a losing record.

Total Runs Facts

• Nine of the Angels’ last 10 night games after playing the previous day have gone UNDER the total runs line.
• Each of the Mariners’ last five games as favorites have gone UNDER the total runs line.
• There has been at least one run scored in the first inning in each of the Mariners’ last 12 home games against AL West opponents.
• There has been no run scored during the first inning in each of the Angels’ last four night games against AL West opponents.

Seattle Mariners Player Prop Facts

• Cal Raleigh has hit a home run in each of the Mariners’ last three home games against AL West opponents.
• George Kirby has recorded seven or more strikeouts in four of his last five appearances against the Angels.
• Julio Rodriguez has recorded at least one hit in each of the Mariners’ last 15 home games against AL West opponents.
• George Kirby has recorded a win in nine of his last 10 appearances against AL West opponents that held a losing record.
• Randy Arozarena ranks T7th in the league in Steals (19) this season.

Los Angeles Angels Player Prop Facts

• Denzer Guzman has hit a home run in each of the Angels’ last three road games.
• Nolan Schanuel has recorded at least one hit in each of his last 16 appearances in night games against teams that held a losing record.

Matchup/League Facts

• The Mariners rank 1st in the league for walks allowed this season (216).
• The Mariners rank 29th in the league for doubles this season (105).
• The Angels rank 30th in the league for strikeouts against this season (806).
• The Angels rank 30th in the league for walks allowed this season (383).

Angels vs Mariners Prediction

The Mariners are 5-2 in their last 7 meetings against the Angels and have won their last four meetings in Seattle.

In this Angels vs Mariners Prediction, the Mariners are coming as -210 home favorites. I like the Mariners in this one with Kirby on the mound, as he has been the far better option than Ryan Johnson, who sits on an 8.84 ERA and 1.71 WHIP. Seattle also has a superior bullpen, ranking 7th in bullpen ERA, while the Angels are just 24th and have been bad on the road. Take the Mariners on the runline in this one.

Nikos Lagouretos's Pick: Seattle Mariners -1.5