Seattle Mariners vs. Miami Marlins Picks and Prediction for Thursday, July 9, 2026
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The Seattle Mariners continue their three-game series against the Miami Marlins on Thursday at 6:40 p.m. ET from loanDepot Park. Miami enters at 50-42 and holds second place in the NL East, while Seattle is 47-45 and leads the AL West by a half-game. The Marlins have won four of their last five games after edging the Mariners 6-5 in 10 innings on Tuesday, while Seattle had won three of four before that extra-inning loss. Cash in a winning ticket with our free MLB picks
Seattle Mariners
Seattle has relied heavily on pitching this season, but the offense has shown flashes despite ranking 27th in MLB with a .231 batting average. The Mariners have scored 377 runs while hitting 110 home runs with a .312 on-base percentage. Randy Arozarena leads the lineup with a .290 average, 89 hits and a .381 OBP. Cole Young has driven in a team-high 42 runs while adding 10 home runs, and Luke Raley leads the club with 14 home runs. Dominic Canzone has also provided power with 14 long balls and a .538 slugging percentage.
Seattle's pitching staff has been among the best in baseball. The Mariners rank fourth in MLB with a 3.55 ERA and own a 1.16 WHIP while holding opponents to a .236 batting average. The staff has recorded 43 quality starts and 787 strikeouts across 807 innings while consistently limiting scoring opportunities.
Injuries: Rob Refsnyder (10-Day IL), Julio Rodríguez (7-Day IL), Brendan Donovan (10-Day IL), Will Wilson (60-Day IL), Carlos Vargas (60-Day IL).
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Miami Marlins
Miami has built its success around a balanced offense that ranks seventh in MLB with a .254 team batting average. The Marlins have scored 424 runs while posting a .331 on-base percentage and 93 home runs. Otto Lopez has been one of baseball's hottest hitters, batting .343 with 124 hits. Liam Hicks leads the club with 13 home runs and 56 RBI while hitting .295, and Xavier Edwards is batting .300 with a .385 OBP. Owen Caissie has also added 12 home runs and 50 RBI to strengthen the middle of the lineup.
The Marlins have backed that offense with dependable pitching. Miami ranks 11th in MLB with a 4.09 ERA while posting a 1.25 WHIP and holding opponents to a .230 batting average. The staff has produced 30 quality starts and 763 strikeouts, helping Miami win eight of its last 10 games.
Injuries: Janson Junk (15-Day IL), Anthony Bender (15-Day IL), Josh Ekness (60-Day IL), Andrew Nardi (60-Day IL), Ronny Henriquez (60-Day IL).
Pitching Matchup
Seattle Mariners – Bryce Miller (RHP) Miller is 4-2 with a 1.71 ERA and an outstanding 0.66 WHIP across 52.2 innings. He has allowed only 30 hits while striking out 62 batters and issuing just five walks. Miller has consistently worked ahead in counts and has been one of Seattle's most reliable starters.
Miami Marlins – TBD Miami had not officially announced a starting pitcher at the time of writing.
Seattle Mariners vs Miami Marlins Prediction
Seattle has the clear edge on the mound with Bryce Miller, but Miami continues to play outstanding baseball at home and has consistently found timely offense during its recent surge. The Marlins have already taken the series opener and continue to receive production throughout the lineup, while Seattle could again be without key contributors because of injuries. This projects as another competitive game, but Miami's recent form and home-field advantage give the Marlins a slight edge. Final Score Prediction: Miami Marlins win 4-3.
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