CHICAGO (Interstat) — Dansby Swanson homered twice and drove in three runs as the Chicago Cubs defeated the San Diego Padres 9-7 on Tuesday night at Wrigley Field before a crowd of 36,279.

The game lasted 3 hours, 7 minutes. The Cubs improved to 48-38, while the Padres fell to 43-41.

Swanson went 3 for 4 with a solo home run in the second inning and a two-run shot in the fifth, his 12th and 13th homers of the season. He also singled in the seventh and scored twice. The shortstop’s performance was the key factor in a game that featured 13 hits for each side.

Matthew Boyd earned the win, allowing three earned runs on eight hits over five innings with two strikeouts and two walks. Boyd improved to 3-1. Ryan Rolison recorded his first save of the season, pitching one-third of an inning of scoreless relief. He faced one batter and induced a flyout.

JP Sears took the loss for San Diego, falling to 1-1. Sears gave up eight runs on eight hits over four innings, walking four and striking out three.

The Padres struck first when Fernando Tatis Jr. led off the game with a home run to left field, his fourth of the season. San Diego added two more runs in the third inning on a two-run homer by Manny Machado, his 16th, scoring Freddy Fermin, who had doubled.

The Cubs answered in the bottom of the first after a throwing error by Tatis at second base allowed Seiya Suzuki to advance to second. Carson Kelly drove in Suzuki with a single to center field.

Chicago took control in the second inning. Swanson led off with a homer to center. After Kevin Alcántara singled and Pete Crow-Armstrong walked, Alex Bregman crushed a three-run homer to left-center, his seventh of the season, scoring Alcántara and Crow-Armstrong. The Cubs led 5-3.

Michael Busch added a solo home run in the fifth inning, his 10th, to extend the lead to 6-3. Swanson followed two batters later with his second homer of the night, a two-run shot to left-center that scored Ian Happ, making it 8-3.

Crow-Armstrong padded the lead in the sixth with a solo homer, his 18th, giving Chicago a 9-3 advantage.

San Diego mounted a comeback in the eighth inning. After Ty France walked and Xander Bogaerts singled, Gavin Sheets pinch-hit and launched a three-run homer to right-center, his 14th, cutting the deficit to 9-6. Tatis followed with his second homer of the game, a solo shot to right-center, his fifth, pulling the Padres within 9-7.

The Cubs bullpen held. After Boyd exited, Tyler Ferguson pitched a scoreless sixth inning with one strikeout. Javier Assad worked a scoreless seventh but allowed the first two runners to reach in the eighth before Rolison came on. Rolison retired the only batter he faced, then Rolison handled the ninth after the Padres threatened no further.

Wandy Peralta pitched 1 2/3 scoreless innings for San Diego, allowing two hits, but the damage was done by the Cubs’ early power.

Other key performers included Bregman, who finished 1 for 3 with a walk and three RBIs. Sheets drove in three runs on his one hit. Machado went 2 for 5 with a homer and two RBIs. Tatis was 2 for 5 with two homers and two RBIs.

For the Cubs, Busch hit his solo homer and finished 1 for 4 with a walk. Kelly had two hits and an RBI. Nico Hoerner singled and scored once.

The game was the second of a three-game series between the teams. Chicago won the opener Monday 3-2. The series finale is Wednesday.

San Diego had lost three of its previous four games entering Tuesday, while Chicago had won seven of its last nine.

Interstat’s game simulator projected a final score of Chicago Cubs 7, San Diego Padres 5. Interstat’s ELO system gave the Cubs a 54.90 percent probability to win. Chicago was installed as a pregame favorite with a spread of minus-1.5. The total score of 16 went under the over-under line of 11.5.