May 20, 2026 10:46 PM
Updated May 20, 2026 10:54 PM

The San Francisco Giants leave their series against the Arizona Diamondbacks empty handed.

After winning a series over the Athletics, it seemed as if the San Francisco Giants would take good momentum into their road series against the Arizona Diamondbacks.

That was quickly snuffed out.

The Giants fell to Arizona on Wednesday 6-3 to conclude the series and solidify an ugly sweep by the Diamondbacks at Chase Field in Phoenix. The loss moves them to 20-30 on the year, and they are now six games in back of the Diamondbacks for third place in the National League West Division.

Marte Strikes Again

Following a crushing loss on Tuesday in which Diamondbacks’ second baseman Ketel Marte walked off the Giants with a two-run home run to cap off a four-run ninth inning, San Francisco began with the advantage yet again on Wednesday thanks to a two-out home run by Casey Schmitt in the top of the first inning.

The Giants’ lead would not last long, however, as Marte picked up where he left off with a leadoff double. A sacrifice fly from Geraldo Perdomo got Marte across home plate to tie the game, which was just the beginning of a rough afternoon for San Francisco right-hander Tyler Mahle.

The Giants struck back in the top of the second, thanks to a Bryce Eldridge RBI double to take a 2-1 lead. But the Diamondbacks, specifically Marte, would not be denied.

In the bottom of the third, Marte crushed another two-run shot to center field to help Arizona reclaim the advantage. He later reached on a bunt to load the bases in the fifth inning before Perdomo launched a two-RBI double as part of a three-run fifth for the Diamondbacks.

By the time Mahle’s day ended in the bottom of the sixth inning, he had allowed eight hits and six earned runs while striking out six in five innings pitched. He was assessed the losing decision, dropping him to 1-6 through 10 starts. 

Conversely, Marte was a triple shy of hitting for the cycle.

Offense Goes Cold

The Giants were able to start strong early, and they even put up a run in the fourth inning to tie the game back up before Arizona’s fifth-inning blitz. But afterward, they fell flat.

From the fifth inning through the end of the game, San Francisco was held scoreless. In total, the Giants tallied just eight hits in 35 at-bats, seven of which came in the first four frames. 

San Francisco will return home and try to bounce back against the Chicago White Sox in a three-game series that begins on Friday.

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