Giants Struggle in Defensive and Offensive Errors in Loss to Marlins

Sunday, June 21, 2026

The San Francisco Giants lost 6-3 to the Miami Marlins, hampered by poor pitching and four defensive errors that allowed Miami to build an early lead despite San Francisco out-hitting their opponents. The defeat dropped the Giants to 14 games below .500 as they face ongoing struggles with pitching command and defense, aiming to improve in Sunday’s series finale.

MIAMI — The San Francisco Giants continued to struggle in a 6-3 loss to the Miami Marlins on Saturday, marked by a series of defensive and pitching errors that compounded an already difficult season start. Despite out-hitting Miami 10 to 6, the Giants' inability to control the game on the mound and in the field ultimately led to their defeat at LoanDepot Park.

The Giants’ starting pitcher, Trevor McDonald, had a rough outing, lasting only a few innings while issuing three walks and hitting three batters in the first inning alone. He was replaced by a reliever who also hit a batter. The early free passes set the tone for the game, allowing the Marlins to take an early lead. McDonald gave up five runs—three earned—in his shortest start of the season.

Manager Tony Vitello expressed frustration over the lack of command from the pitching staff, noting that the team's struggle to attack the strike zone negatively impacted both defense and offense. “You’re not going to win too many games when you give up that many free bases, whether it’s walks or hit by pitch,” Vitello said.

In addition to the pitching troubles, the Giants committed four errors and hit four opposing batters—marks never before seen since the franchise moved to San Francisco. Defensively, the team faltered in key moments, including a failed safety squeeze attempt that contributed to lost runs.

Offensively, Casey Schmitt emerged as a bright spot, hitting his team-leading 16th home run of the season and nearly adding another with an unusual double after the ball hit off the center fielder’s glove. Schmitt’s timely hitting helped generate some offense alongside Drew Gilbert, who posted two hits, including a double and an RBI single. Gilbert also made a highlight grab in center field late in the game, crashing into the wall to secure an out.

Beyond these moments, the Giants’ offense struggled with some uncompetitive at-bats, as key hitters like Matt Chapman and Rafael Devers struck out looking. Devers also drew criticism for a slow jog to first base on a routine ground ball.

The loss dropped San Francisco to 14 games below .500, a sharp contrast to their recent success, including a sweep of the MLB-leading Atlanta Braves earlier this week. The Giants will look to rebound Sunday when Logan Webb takes the mound against Marlins’ starter Ryan Gusto in the series finale, with first pitch scheduled for 10:40 a.m. PT.

Vitello indicated that the team would continue to rely on McDonald in the rotation despite recent struggles, as they await the return of Tyler Mahle and the addition of Adrian Houser to the bullpen to stabilize pitching depth. For now, command issues and defensive lapses remain key challenges for the Giants as they try to reverse their fortunes on the road.