Los Angeles Angels vs Seattle Mariners Preview, 9/12/2025 MLB Forecast, Top Picks & Odds

Home » Los Angeles Angels vs Seattle Mariners Preview, 9/12/2025 MLB Forecast, Top Picks & Odds
  • Matchup: Los Angeles Angels vs Seattle Mariners
  • Date: Friday, September 12, 2025
  • Venue: T-Mobile Park, Seattle, WA
  • Broadcast: Root Sports Northwest
  • Betting Odds: Los Angeles (+110) Seattle (-130)

The Seattle Mariners (78-68) host the Los Angeles Angels (69-77) at T-Mobile Park this Friday. The moneyline for this matchup has Los Angeles at +110 while Seattle is listed at -130. The total runs over/under is set at 9. The starting pitchers for the game are Yusei Kikuchi and Luis Castillo.

MLB Picks: Josh Naylor's Seattle Mariners Predictions & Best Bets

The Los Angeles Angels have recorded a slugging percentage of .401, alongside 1,434 strikeouts and 453 walks this season. They have achieved 605 RBIs and amassed 1,111 hits, resulting in a batting average of .229. As a team, the Angels have hit 199 doubles and 201 home runs, scoring a total of 627 runs with an on-base percentage of .304. The team averages 4.3 runs per game, positioning them 20th in Major League Baseball (MLB).

The Angels maintain a K/BB ratio of 2.05, with their pitching staff recording a WHIP of 1.43. So far this season, they’ve allowed 206 home runs and 745 runs total, ranking 27th in MLB. With 1,292 hits given up (averaging 9.0 hits per 9 innings) and 690 earned runs, the team has a season ERA of 4.80 (27th in baseball), managing to strike out 1,150 batters. The Angels have allowed 561 walks, resulting in a FIP of 4.84 for the season.

This year, the Angels have called upon 506 relievers, and 36.0% of the 200 inherited runners have scored. The team has achieved 35 saves but has missed the mark on 32 of 67 save opportunities. Their bullpen holds a save percentage of 52.2%, and they have tallied 78 holds (20th in MLB). Angels relievers have entered games with runners on base 132 times and recorded 191 high-leverage appearances.

Out of 11,637 innings, the Angels have converted 68.9% of balls in play into outs, placing them 25th in the league. The Kansas City Royals have achieved 3,879 putouts, with 1,277 assists and 88 errors, leading to a fielding percentage of .983, ranking 26th in MLB, while completing 148 double plays.

Kikuchi, with a career record of 47-58, has a FIP of 4.44, facing 4,179 batters. He has allowed 976 hits (9.1 hits per 9 innings) and has issued 351 walks. His career ERA stands at 4.51, permitting 486 earned runs with a WHIP of 1.367. Over his career, he has pitched for 970 innings, registering 1,000 strikeouts.

The Seattle Mariners hold a team on-base percentage of .319 and a batting average of .243 this season. They have struck out 1,293 times (4th in the league) and accumulated a total of 1,205 hits, with 213 home runs and 651 RBIs. The Mariners boast a slugging percentage of .415, averaging 4.66 runs per game (11th in baseball). Additionally, they have tallied 198 doubles and recorded 680 runs while taking 492 walks.

On the pitching front, the Mariners have surrendered 642 runs with a 3.96 ERA (579 earned runs). They have given up 173 home runs and concede 4.39 runs per 9 innings, placing them 16th in the league. Their team WHIP is at 1.248, with a FIP of 4.07 this season. Their strikeout-to-walk ratio is an impressive 8.60 (1,253 strikeouts against 425 walks), currently ranking 21st in total hits allowed with 1,218.

This season, Seattle relievers have faced 61 save opportunities, securing 38 saves. They rank 18th in MLB with a save percentage of 62.3%, having called upon 494 relievers. Their bullpen has been present in 196 high-leverage situations and 119 with runners on base, with an inherited score rate of 25.0% out of 132 inherited runners. They have faced 143 save situations, achieving 82 holds but failing 23 times.

In terms of defense, over 11,850 innings, the Mariners achieved a defensive efficiency of 70.2% (12th in MLB). The Seattle Mariners have executed 107 double plays and achieved a fielding percentage of .988 (7th in baseball), accumulating 1,228 assists, committing 62 errors, and recording a total of 3,950 putouts this year.

Castillo has made his mark in the league by allowing 1,201 hits while achieving 1,475 strikeouts across 1,391 innings. With a career record of 82-84, Castillo has a 3.59 ERA, allowing 7.8 hits per nine innings while permitting 555 earned runs with a WHIP of 1.188. His FIP stands at 3.5, with a strikeout-to-walk ratio of 3.27, having faced 5,757 batters throughout his career.

Who will come out on top in tonight’s MLB showdown, both against the spread and moneyline?

Guy Bruhn’s Prediction: Select Seattle (-130)


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Pick: Seattle Mariners(-130)
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