SEATTLE (Interstat) — Cal Raleigh homered three times and drove in four runs, and the Seattle Mariners routed the Philadelphia Phillies 9-2 on Monday night at T-Mobile Park.

Raleigh went 3 for 3 with three home runs, matching a career best, and highlighted a five-run first inning that put Seattle ahead for good. The Mariners won their third straight game and improved to 63-69. The Phillies, who had won four consecutive games, dropped to 74-60.

Seattle’s first-inning outburst erased an early Philadelphia lead and set the tone. The Phillies scored once in the top of the first when Kyle Schwarber walked and came home on Alec Bohm’s groundout. Seattle answered immediately. Randy Arozarena walked, Dominic Canzone singled, and Julio Rodríguez launched a three-run homer to left field, his 20th of the season, giving Seattle a 3-1 lead. After Josh Naylor singled and was thrown out at second on a strong throw from right fielder Bryce Harper to shortstop Trea Turner, Taylor Ward walked. Raleigh followed with his 15th homer, a two-run drive to right field, making it 5-1.

Philadelphia cut the deficit in the second inning when J.T. Realmuto homered to left-center, his ninth of the year, pulling the Phillies within 5-2. But Seattle’s pitching, backed by a sharp bullpen, kept Philadelphia off the board for the remainder of the game.

The Phillies had opportunities in the middle innings but could not convert. In the third, Bryce Harper singled and Luis Arraez followed, but the inning ended with Alec Bohm striking out. In the fourth, Bryson Stott singled, but Seattle starter Logan Gilbert worked around it, getting Brandon Marsh to strike out and J.T. Realmuto to pop out before Justin Crawford flied out.

Gilbert, the winning pitcher, allowed two runs on five hits over five innings, striking out five without walking a batter. He improved to 11-7 on the season. Zack Wheeler took the loss for Philadelphia, falling to 10-5. Wheeler allowed six runs, five earned, on six hits and four walks over three innings, striking out four.

Seattle extended its lead in the bottom of the third. Julio Rodríguez singled, Josh Naylor singled, and Taylor Ward walked to load the bases. Raleigh then walked, forcing in Rodríguez and making it 6-2. Cole Young grounded into a force out at home, and Weston Wilson struck out, leaving the bases loaded. The Mariners stranded two more runners in the fourth when Randy Arozarena walked and Dominic Canzone grounded into a double play, but the damage had been done.

The Mariners broke the game open in the fifth. Raleigh led off with his 16th homer, a drive to right-center. Cole Young followed with his 16th homer of the season, a line drive to right field, giving Seattle an 8-2 lead. Raleigh completed his big night in the seventh, homering again to right field, his 17th of the season, for a 9-2 advantage.

Seattle’s bullpen took over from there. Seranthony Domínguez pitched two scoreless innings, allowing no hits and striking out two. Carlos Vargas worked a perfect eighth with one strikeout, and Gabe Speier retired the side in the ninth. Philadelphia’s relievers also kept the game from getting further out of hand. Alex McFarlane tossed a scoreless inning with two strikeouts, Chase Shugart allowed one run on one hit over two innings with four strikeouts, and José Alvarado pitched a scoreless seventh with two strikeouts.

The Phillies managed only five hits in the game. Harper had two, including a sharp line-drive single in the third. Luis Arraez, Bryson Stott and Realmuto accounted for the other hits. Justin Crawford, Brandon Marsh and Kyle Schwarber were held in check by Gilbert and the Seattle bullpen.

Seattle finished with 10 hits. Rodríguez went 2 for 5 with the home run and three RBIs. Josh Naylor also had two hits, including a single in the third. Dominic Canzone, Cole Young and Cal Raleigh contributed the other hits, with Young’s solo homer in the fifth giving Seattle a comfortable cushion.

The game featured a successful challenge in the first inning. After Josh Naylor singled sharply to right field, Harper’s throw to second base retired Naylor on a tag play, with the call overturned upon review. In the seventh inning, a challenge on a pitch result overturned a called strike against Kyle Schwarber, but Schwarber was eventually called out on strikes to end the inning.

Attendance was announced at 35,293. The game lasted 2 hours, 41 minutes.

Philadelphia had won four in a row entering the contest, including a three-game sweep of the St. Louis Cardinals at home. Seattle had dropped 19 runs in a loss to the Chicago Cubs on Sunday before rebounding with a one-run win Saturday, and the Mariners carried that momentum into Monday’s opener of a four-game series against Philadelphia.

The teams play Tuesday in the second game of the series. After that, Seattle heads to Toronto for a weekend series, while Philadelphia travels to Los Angeles to face the Angels. The Phillies then continue their road trip with a three-game set in Arizona, followed by a home series against Atlanta. Seattle returns home after Toronto to face Boston and then Oakland.

Interstat’s game simulator had projected a final score of Philadelphia 8, Seattle 6. Interstat’s ELO system gave Philadelphia a 56.30 percent probability to win, and the Phillies were installed as a 1.5-run favorite. The total score of 11 went under the over/under line of 6.5.