Mariners vs. Dodgers Prediction: Best Bet for Thursday’s Series Finale

A rubber match at Dodger Stadium with the two-time defending champs favored at home, but the Mariners just proved this weekend they can slug with anyone in October-caliber lighting.

Quick take:

• Pick: Los Angeles Dodgers -154
• Why: Roki Sasaki has been the best version of himself over his last three starts, and Seattle’s offense has been feast-or-famine all year
• The number to watch: Sasaki’s 1.93 ERA with 19 strikeouts against just four walks over his last 18.2 innings

Seattle and Los Angeles split the first two games of this series, and honestly, both wins told a story. The Mariners bashed five home runs — including a pair from Dominic Canzone — in a 7-6 series-opening win Tuesday, with Cal Raleigh and Julio Rodriguez both going deep in the same game for just the second time all season. The Dodgers answered by grinding out a 4-2 win Wednesday behind their lineup depth, even with Emerson Hancock keeping Seattle competitive into the fifth. Now it comes down to a series finale with the NL West nowhere near a race — LA’s sitting comfortably at 67-40 — but plenty of pride and playoff-shaping momentum on the line for a Mariners club at 53-55 still trying to find its footing in a jumbled AL West.

That’s the tension in this one: Seattle has shown flashes of exactly the kind of power surge that got them into the 2025 World Series conversation, but they’ve been streaky enough this season that nobody fully trusts it yet.

Why Vegas Still Likes LA Even After Two Slugfests

The Dodgers opened as home favorites in this one and the number hasn’t moved much, with Los Angeles sitting at -154 on the moneyline and Seattle out at +130. That’s a fairly modest home price for a team with baseball’s best record, and it reflects two things: first, that Roki Sasaki’s overall ERA (4.71) still looks rough on the season sheet even though he’s been dominant lately, and second, that Seattle’s bullpen — anchored by Andres Munoz, who nailed down his 19th save Tuesday — has been genuinely good all year. The market isn’t fully pricing in how sharp Sasaki has actually been of late, which is where the value sits. Anyone weighing the moneyline against the run line should check the betting calculator before locking in a number.

Recent Form

Seattle’s last five games have been a rollercoaster, while the Dodgers have won four of their last five and haven’t lost consecutive games in weeks. Here’s how both clubs stack up, along with the head-to-head tracker for this new season series.

Showing 10 of last 10 meetings

Sasaki’s Turnaround Meets Seattle’s Boom-or-Bust Lineup

Bryce Miller takes the mound for Seattle with a 2.75 ERA, a 0.92 WHIP, and 71 strikeouts against just 10 walks over 68.2 innings — that walk rate is elite, and it’s the reason he’s kept the Mariners in almost every start he’s made. But he’s opposite a pitcher who has quietly turned a corner. Roki Sasaki opened the year homer-prone and wild, but over his last three starts he’s been nearly unhittable: a 1.93 ERA, 19 strikeouts, and only four walks in 18.2 innings, capped by nine strikeouts in a win over the Mets last Friday.

Offensively, this is still a series about star power trading blows. Shohei Ohtani has three hits with three RBI already in this set and is hitting .282 with 22 home runs and a .907 OPS on the season, even while nursing knee and biceps issues that have paused his pitching duties. Cal Raleigh has 11 home runs and came alive Tuesday alongside Julio Rodriguez, giving Seattle’s lineup the kind of top-to-bottom thump that can steal a game against anyone. The Dodgers also get reinforcements trickling back — Enrique Hernandez was activated and Edwin Diaz has rejoined the bullpen as closer, adding late-inning stability LA didn’t have most of the summer.

Sasaki has allowed just four walks in his last 18.2 innings after issuing 36 on the season — the strike-throwing version of him is a completely different pitcher.

That command swing matters against a Seattle lineup that lives and dies by the home run. When Sasaki’s missing bats and not the strike zone, Seattle’s boom-or-bust approach has no margin for error. Miller, for his part, has been excellent all year, but he’s rarely had to face a Dodgers order this deep, especially with Ohtani locked in and complementary bats like Freddie Freeman and Mookie Betts also part of the equation.

Prediction and Best Bet

Seattle has the raw power to make this ugly for LA again, and Miller gives them a real chance if the Dodgers’ bats go cold for even one night. But with Sasaki pitching like a completely different pitcher than his season numbers suggest, and LA’s bullpen finally getting healthier at the right time, the Dodgers should take the rubber match.

The pick:

1. Prediction: Los Angeles Dodgers 5, Seattle Mariners 3
2. Best Bet: Dodgers on the moneyline

Sasaki’s recent command and a deepening Dodgers bullpen are the difference-makers in a series finale that should be closer than the moneyline suggests, but still ends with LA taking two of three.