Seattle Mariners vs Los Angeles Angels Picks and Prediction for Monday September 14 2026

The Seattle Mariners visit the Los Angeles Angels at Angel Stadium in Anaheim, California, on Monday, September 14, 2026. First pitch is scheduled for 9:38 PM ET with coverage on MLB.TV. Seattle enters at 70-79 overall and 30-44 on the road, while Los Angeles is 56-92 overall and 30-44 at home. The Mariners are 3-2 over their last five games and are coming off a 19-1 win, while the Angels are 2-3 over their last five and have dropped two straight. Seattle also leads the season series 4-2. At the time of this writing the odds were not released. Be sure to check out our free MLB picks for more MLB predictions throughout the season.

Starting Pitchers

Seattle is scheduled to start Kade Anderson, who enters at 1-1 with a 4.29 ERA and 1.38 WHIP through 21 innings. He has allowed 21 hits and four home runs while recording 16 strikeouts against eight walks. Los Angeles counters with Reid Detmers, who is 5-8 with a 3.32 ERA and 1.04 WHIP across 168 innings. He has allowed 129 hits and 17 home runs while striking out 191 and walking 45. Los Angeles owns the clear starting-pitching advantage based on ERA, WHIP, workload and strikeout production.

Seattle Brings Better Recent Form and More Power

Seattle enters Monday at 70-79 overall and 30-44 away from home. The Mariners have won three of their last five games, including victories by scores of 19-1, 4-3 and 3-2. Their two losses during that stretch came by scores of 6-5 in 10 innings and 10-5. Seattle remains third in the American League West and sits five games behind the division leader.

The Mariners are batting .231 with 605 runs, 1,145 hits and 171 home runs. They carry a .312 on-base percentage and .379 slugging percentage. Seattle's pitching staff owns a 4.19 ERA and 1.25 WHIP while opponents are batting .250. The staff has recorded 1,266 strikeouts against 393 walks, and the Mariners are 30-25 in day games.

Seattle's biggest offensive advantage is power. The Mariners have hit 28 more home runs than Los Angeles and have also scored six more runs despite owning the lower batting average. Their team pitching profile is also slightly better in ERA and significantly better in WHIP. The concern is the starting matchup, where Seattle is giving away a substantial edge.

Los Angeles Has the Stronger Starter but Little Margin for Error

Los Angeles enters Monday at 56-92 overall and 30-44 at Angel Stadium. The Angels are 2-3 over their last five games and have lost two straight, falling 6-5 in 10 innings and 4-3 in their most recent two contests. Their two victories during the stretch came by scores of 6-4 and 6-1. Los Angeles remains at the bottom of the American League West, 18.5 games behind first place.

The Angels are batting .234 with 599 runs, 1,156 hits and 143 home runs. They own a .308 on-base percentage and .372 slugging percentage. Los Angeles has a 4.20 team ERA and 1.34 WHIP while opponents are batting .235. The pitching staff has recorded 1,322 strikeouts against 596 walks, and the Angels are 18-27 in day games.

Los Angeles' strongest argument in this matchup is starting pitching. The Angels' scheduled starter owns a 3.32 ERA and 1.04 WHIP with 191 strikeouts across 168 innings, giving them a major edge over Seattle's less-established starter. The problem is that Los Angeles trails Seattle in home runs, runs scored, team WHIP and recent form, so the Angels need that starting advantage to carry significant weight.

Seattle Mariners vs Los Angeles Angels Picks and Prediction

Pick: Los Angeles Angels Moneyline

The Los Angeles Angels Moneyline is the preferred side. Seattle has the better overall record, better recent form and more power, but the starting-pitching gap is difficult to ignore. Los Angeles' scheduled starter enters with a 3.32 ERA and 1.04 WHIP while Seattle's starter has worked only 21 innings with a 4.29 ERA and 1.38 WHIP. In a matchup where the team-level pitching numbers are otherwise similar, that starting edge gives the Angels the stronger case.

Pick: Under 8.5

Take the Under if the total is set at 8.5 or higher. The Angels have one of the better individual starting-pitching profiles in this matchup, while Seattle's offense has been inconsistent despite the 19-run outburst in its most recent game. Four of Los Angeles' last five games have finished with 11 or fewer total runs, and two of those finished at seven or fewer. With the Angels' starter capable of suppressing Seattle's offense, the Under is the preferred total position at 8.5 or better.

Final Picks: Los Angeles Angels Moneyline and Under 8.5

This preview was completed on Sunday. Starting pitchers, betting lines and other game information are subject to change before the game begins.