MIAMI GARDENS, Fla. (Interstat) — The Miami Marlins completed a three-game sweep of the Seattle Mariners with an 8-4 victory Thursday night at loanDepot Park, powered by a four-run fourth inning that broke open a close game.

Griffin Conine went 3 for 4 with a home run and an RBI for Miami, while Jakob Marsee added two hits and an RBI. Xavier Edwards, Leo Jiménez and Otto Lopez each contributed two hits and an RBI as the Marlins improved to 52-42. The Mariners fell to 47-47.

Seattle took a 1-0 lead in the top of the second inning when Josh Naylor singled and later scored on a walk to Colt Emerson with the bases loaded. Janson Junk escaped further damage by getting J.P. Crawford to ground out.

Miami answered immediately in the bottom half. Conine led off with a solo home run to right field, his fourth of the season, tying the game 1-1. Two batters later, Jakob Marsee singled, and Liam Hicks followed with an RBI double to right field that scored Marsee, giving Miami a 2-1 lead.

The Marlins seized control in the fourth inning. After a leadoff walk to Marsee, Leo Jiménez singled. Liam Hicks then reached on a fielder’s choice that scored Marsee. A throwing error by Seattle shortstop Colt Emerson allowed Jiménez to advance to second, and Hicks moved to third. Otto Lopez followed with a triple to left field, clearing the bases and making it 5-1. After a popout, Kyle Stowers singled to drive in Lopez, extending the lead to 6-1.

Seattle trimmed the deficit in the fifth inning when Randy Arozarena led off with a solo home run to center field, his 10th of the season, making it 6-2. But Junk settled down and retired the next three batters to preserve the lead.

Junk earned the win, improving to 4-5. He pitched five innings, allowing three hits, one earned run and striking out five. He walked three.

Seattle starter Bryce Miller took the loss, falling to 4-3. Miller allowed six runs on seven hits over four innings, striking out two and walking four.

Miami padded its lead in the seventh inning. Conine led off with a double, moved to third on a single by Esteury Ruiz, and scored on a Marsee single. Ruiz later scored on a groundout by Jiménez, making it 8-2.

The Mariners mounted a brief rally in the eighth inning. Dominic Canzone hit a two-run home run to center field, his 15th of the season, scoring Arozarena who had walked. That cut the deficit to 8-4. But Calvin Faucher came on in relief and retired the final two batters of the inning, striking out one in two-thirds of an inning of scoreless relief.

Seattle threatened again in the ninth inning against the Miami bullpen. Colt Emerson singled with one out, but J.P. Crawford struck out and Arozarena flied out to end the game.

The attendance was 7,815, and the game lasted 2 hours, 47 minutes.

Miami has won three straight games, including the first two of this series — a 2-0 shutout Wednesday and a 6-5 victory in 10 innings Tuesday. Seattle, which had won four of its previous six games entering the series, now heads to Tampa Bay for a three-game weekend series starting Friday.

The Marlins continue a homestand with a three-game set against the Cleveland Guardians beginning Friday.

Interstat’s game simulator had projected a final score of Miami Marlins 7, Seattle Mariners 5. Interstat’s ELO system had projected Miami with a 51.40 percent probability to win. Seattle had been installed as a pregame favorite with a spread of minus 1.5. The total score of 12 went under the over-under line of 8.