Seattle Mariners vs. Miami Marlins Prediction & MLB Picks for July 9, 2026

Game: Seattle Mariners vs. Miami Marlins Date: Thursday, July 9, 2026 Location: LoanDepot Park, Miami, FL TV: MLB.TV Moneyline: Seattle (-130) | Miami (+110) Over/Under: 8 Starting Pitchers: Bryce Miller (SEA) vs. Janson Junk (MIA)

Game Overview

Thursday evening at LoanDepot Park in Miami sees the 50-42 Marlins hosting the 47-45 Mariners. The moneyline has Seattle installed as -130 favorites, with Miami available at +110. The total sits at 8, and the scheduled starters are Bryce Miller for Seattle and Janson Junk for Miami.

Seattle Mariners Offensive Breakdown

On the offensive side, the Mariners are averaging 4.1 runs per game this season, which places them 27th across the league. Seattle has scored 377 total runs and carries a team on-base percentage of .312. As a unit, they have accumulated 114 doubles and 110 home runs, driven in 364 runs, and collected 704 hits. Their team batting average stands at .231, their slugging percentage is .382, and they have struck out 799 times while drawing 307 walks.

Seattle Mariners Pitching Breakdown

Seattle’s pitching staff has posted a team ERA of 3.55 this season, ranking 4th in all of baseball, and has recorded 795 strikeouts. Mariners pitchers have surrendered 82 home runs and 351 total runs — third-best in the majors — while issuing 230 walks. Their collective FIP is 3.47, and they have given up 721 hits (8.0 per nine innings), along with 322 earned runs. The staff’s strikeout-to-walk ratio checks in at 3.46, and their team WHIP is 1.17.

Mariners Bullpen

Seattle’s relief corps has entered games with runners already on base on 65 occasions and has appeared in 100 high-leverage situations. The bullpen has recorded 53 holds this year (10th in MLB) and carries a save rate of 59.5% across 91 save opportunities. They have converted 22 saves while failing to close out 15 of their 37 chances. Of the 89 baserunners inherited by Seattle relievers, 27.0% have gone on to score. The Mariners have deployed 272 relief appearances on the season.

Seattle Mariners Defense Breakdown

Seattle’s defense has recorded 2,449 putouts, 749 assists, and 46 errors this season. Their fielding percentage of .986 ranks 16th in the majors, and they have turned 81 double plays. Over 7,347 innings, the Mariners have converted 69.8% of balls in play into outs, which also places them 16th in MLB.

Bryce Miller — Pitching Matchup

Over the course of his professional career, Bryce Miller has thrown 454 innings and recorded 426 strikeouts. He carries a career ERA of 3.75 — having allowed 189 earned runs — along with a WHIP of 1.074. Miller has surrendered 378 hits (7.5 per nine innings) and 110 walks. His career record stands at 28-23, his FIP is 3.69, and he has faced 1,820 major-league batters in total.

Miami Marlins Offensive Breakdown

Miami’s lineup is averaging 4.61 runs per game, placing them 11th in the league, and they own a slugging percentage of .411. The Marlins have amassed 157 doubles, drawn 318 walks, and scored 424 runs. Their 93 home runs on the year are complemented by 408 RBIs. They have struck out 746 times (20th in baseball) and accumulated 779 hits. Miami holds a team batting average of .254 and an on-base percentage of .331.

Miami Marlins Pitching Breakdown

Miami’s pitching staff has yielded 399 total runs this season, including 368 earned runs, for a team ERA of 4.09. They have given up 90 home runs and are allowing 4.44 runs per nine innings, ranking 11th in the majors. The Marlins’ team WHIP stands at 1.246 and their collective FIP is 4.01. Their strikeout-to-walk ratio is 8.60 (771 strikeouts versus 312 walks), and they rank 6th in MLB in total hits allowed with 696.

Marlins Bullpen

Miami’s relief staff has appeared in 89 high-leverage situations and entered with runners on base on 80 occasions. The Marlins have a save rate of 66.7%, ranking 15th in the league, and have used 295 relievers across the season. With 87 save situations logged, Miami has recorded 22 saves in 33 chances, chalked up 52 holds, and blown 11 saves. Of 118 inherited baserunners, Marlins relievers have allowed 20.3% to score.

Miami Marlins Defense Breakdown

Miami’s defense owns a fielding percentage of .983, which ranks 25th in baseball. The Marlins have recorded 2,427 putouts, 749 assists, and 56 errors, turning 62 double plays this year. Over 7,281 innings, they have converted 70.9% of balls in play into outs, placing them 9th in the majors.

Janson Junk — Pitching Matchup

Throughout his professional career, Janson Junk has thrown 210 innings, surrendered 237 hits, and accumulated 154 strikeouts. His career ERA sits at 4.84, with 113 earned runs allowed, and he is giving up 10.2 hits per nine innings. Junk’s WHIP is 1.305, his FIP is 4.80, and his strikeout-to-walk ratio is 4.16. He carries a career record of 10-12 and has faced 891 opposing batters at the major-league level.

Expert Pick

Guy Bruhn’s Pick: Take Miami (+110)

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