CHICAGO (Interstat) — Shota Imanaga pitched seven crisp innings, Ian Happ homered, tripled and doubled, and the Chicago Cubs blanked the Arizona Diamondbacks 2-0 on Saturday afternoon at Wrigley Field, extending their home winning streak to 10 games.

Imanaga allowed four hits, struck out five and walked none in a dominant seven-inning outing that lowered his earned run average to 2.73. The left-hander improved to 3-2 after bouncing back from a rough start at Los Angeles on April 26, when he gave up five earned runs in 5 1/3 innings.

The Cubs, winners of 21 of their first 33 games, moved to 21-12 and maintained their hold on first place in the National League Central. Arizona fell to 16-16, losing its third straight game.

Happ, the Cubs’ left fielder, was the offensive catalyst, going 3 for 3 with a solo home run in the second inning, a double in the sixth and a triple in the eighth. He scored twice and drove in the game’s first run. His homer, his eighth of the season, cleared the right-field wall and put Chicago ahead for good.

Arizona’s Ildemaro Vargas saw his 27-game hitting streak end, going 0 for 4. Vargas had hit safely in the final three games of last season and in the first 24 games of 2026. He grounded out in his final at-bat in the ninth inning against Cubs reliever Ben Brown, who earned his first save by tossing two perfect innings with one strikeout.

The Diamondbacks managed only four hits off Imanaga and Brown. Lourdes Gurriel Jr. had a double among his 1-for-4 afternoon, while Nolan Arenado and Geraldo Perdomo each singled. Ketel Marte struck out twice and Corbin Carroll singled in the first inning but was left stranded.

The Cubs’ pitching staff combined for 12 strikes, 45 balls and 12 balls in play. Arizona pitchers threw 16 strikes, 36 balls and 16 balls in play.

Chicago struck first in the second inning. After Ryne Nelson retired the first two batters of the inning, Happ stepped to the plate and launched a 1-0 pitch to right field for a solo homer. The Cubs added a second run in the eighth inning when Happ tripled and scored on a sacrifice fly by Seiya Suzuki.

Nelson, the Arizona starter, pitched 5 2/3 innings and allowed four hits. He gave up one earned run, struck out four and walked two, including an intentional walk to Happ in the third inning. Nelson fell to 1-3 on the season.

The Cubs threatened again in the third inning after Miguel Amaya walked and Michael Busch doubled, putting runners at second and third with no outs. But Nelson worked out of the jam by getting Moises Ballesteros to line out, Alex Bregman to fly out and, after intentionally walking Happ, Suzuki to fly out.

Arizona had its best scoring chance in the seventh inning. Gurriel led off with a double to left field. After Arenado grounded out, Jose Fernandez walked to put two on with one out. But James McCann grounded into a force out and Jorge Barrosa popped out to end the threat.

In the eighth, Chicago sealed the game. After Bregman struck out, Happ tripled to the right-field gap off Arizona reliever Juan Morillo. Suzuki then lifted a fly ball to left field, deep enough to score Happ easily. Pete Crow-Armstrong flied out to end the inning. Morillo worked one inning, allowed one hit and one earned run with two strikeouts.

Taylor Clarke, Kevin Ginkel and Jonathan Loaisiga each pitched scoreless relief for Arizona. Clarke tossed two-thirds of an inning with one strikeout, Ginkel got one out, and Loaisiga recorded one out.

The game took 2 hours, 27 minutes to complete in front of 36,907 fans at Wrigley Field, where the Cubs have not lost since April 19, a span of 10 consecutive home victories. That marks the club’s longest home winning streak since 2008.

For the Cubs, first baseman Michael Busch singled in three at-bats and doubled. Dansby Swanson singled in the second inning. Matt Shaw struck out twice but played error-free defense at second base.

Arizona’s offense has sputtered during the losing streak. The Diamondbacks scored 5 runs in Friday night’s 6-5 loss to the Cubs but were shut out Saturday. They have been held to 4 runs or fewer in eight of their last 10 games.

The series concludes Sunday afternoon, with Arizona sending a starter to be determined against Cubs right-hander Jameson Taillon. After that, the Diamondbacks return home for a six-game homestand against Pittsburgh and New York, while the Cubs host the Cincinnati Reds before traveling to Texas and Atlanta.

Interstat’s game simulator had projected a final score of Chicago Cubs 6, Arizona Diamondbacks 4. Interstat’s ELO system gave the Cubs a 60.40 percent probability to win. Chicago was installed as a pregame favorite with a spread of minus-1.5. The total score of 2 went under the over-under line of 7.5 runs.