Giants Snap Eight-Game Skid Against Diamondbacks Behind Trevor McDonald's Dominant Outing

McDonald's Turnaround Performance

Trevor McDonald entered Wednesday's start mired in a deep slump — winless in seven consecutive outings with a bloated 6.47 ERA. The 25-year-old right-hander relied heavily on his sinker, which accounted for over half of his 90 pitches, while mixing in his slider and changeup effectively. The result was his first scoreless start of the season and a much-needed boost for a Giants rotation that saw Landen Roupp last only 2.2 innings in Tuesday's loss.

Offensive Breakout

After struggling to produce consistently in recent weeks — particularly against the Diamondbacks — San Francisco's lineup showed signs of life. The fifth inning proved decisive when Ramos launched the first pitch he saw 427 feet over the center-field wall. After Jung Hoo Lee singled, Bericoto crushed a 422-foot homer two pitches later to make it 3-0.

The Giants didn't stop there. In the sixth, Ramos tripled off the top of the wall — coming inches from a second consecutive home run — before Lee and Drew Cavanaugh added run-scoring singles to push the lead to 6-0.

Bullpen Holds On

Following McDonald's exit, Erik Miller worked a clean seventh with two strikeouts. However, Ryan Walker struggled mightily in the eighth, allowing four earned runs on four hits without recording an out, raising his ERA to 7.06. Dylan Smith stopped the bleeding, and closer Caleb Kilian sealed the win with a 1-2-3 ninth inning, striking out two for his seventh save of the season.

What's Next

The Giants have an off day Thursday before beginning a three-game series against the Colorado Rockies on Friday. They then return home to face Toronto (July 6-8) and Colorado again (July 9-12) before the All-Star break. For Arizona, a three-game home series against the Milwaukee Brewers begins Friday.

How significant was this win for the Giants?

It was immensely important. The Giants avoided being swept by Arizona for the third time this season and prevented an 0-9 start against a single opponent — something that had never happened in franchise history. It also snapped an eight-game losing streak to the Diamondbacks.

What was wrong with Trevor McDonald before this start?

McDonald entered the game winless in seven consecutive starts with a 6.47 ERA over that span. His last win came on May 16. Wednesday marked his first scoreless start of the 2026 season.

How did the Giants handle Matt Chapman's absence?

Matt Chapman was placed on the 10-day injured list with an abdominal strain before the game. Heliot Ramos stepped up significantly, providing both power and run production from the right side of the plate, which was much needed given the lack of right-handed depth.

What are the current standings for the NL West?

The Dodgers lead at 56-31, followed by the Padres (43-42), Diamondbacks (43-43), Giants (36-50), and Rockies (34-53).

Do you think Trevor McDonald has finally turned a corner after his dominant outing, or was this just a one-game flash against a division rival? Share your thoughts below!

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