OAKLAND -- After losing by 16 runs and trading away star hitter Luis Arraez on Saturday, the Marlins needed a pick-me-up at the Oakland Coliseum on Sunday.

Nick Gordon delivered.

Gordon's big three-run blast punctuated a first-inning barrage from the Marlins, who rolled to a 12-3 victory in the series finale to end the A's six-game winning streak.

"Super big," Gordon said. "Definitely after [Saturday] night … To bounce back like that and put it on them pretty good shows signs of a good team."

The Marlins attacked early against Oakland right-hander Joe Boyle, who issued three straight walks to begin the game. Gordon jumped on a 95 mph four-seamer over the heart of the plate and launched it over the wall in right-center, admiring the dinger as it sailed out of the ballpark.

Gordon entered the game riding a 1-for-17 cold streak but finished the afternoon 4-for-4 with a home run, double, two runs scored and three RBIs, recording his first career four-hit day.

So, what did he have for breakfast?

"Honestly, just a little bit of knowledge," Gordon responded with a smile.

Following Saturday night's 20-4 loss to the A's, Gordon and teammates like Jazz Chisholm Jr. went back to the drawing board to discuss how to turn around their fortunes. As Gordon rounded first base on his home run trot, he pointed to Chisholm in the dugout, who was celebrating the big blast.

"[Saturday] night, we talked a little hitting, and today we came out and executed," Gordon said. "The stuff we were talking about [Saturday] night, I was saying, 'That's it, that's it!' It confirmed that the stuff we were talking about [Saturday] night, bro, just keep going. We gotta trust it."

The 2014 No. 5 overall pick is trying to recapture the form that led to a breakout 2022 season with the Twins, when he slashed .272/.316/.427 with nine homers and 50 RBIs in 132 games. In fact, he said he was watching 2022 game tape on Saturday night to get some inspiration.

"Honestly, I will say I made a very light swing adjustment," Gordon said. "Not too much of a swing adjustment, it's just more intent. It's more mental, being in the right mindset and trusting yourself."

Last year, he fouled a pitch off his right shin on May 17 and suffered a season-ending injury. Miami acquired Gordon via trade this offseason and Marlins manager Skip Schumaker said the organization has a lot of confidence in the utility man. This season, he is slashing .207/.241/.631 with four homers and 15 RBIs.

"We needed him to get going, especially against the right-handers," Schumaker said. "That's why he's here to hit the righties. It was a really good day for him today."

Miami broke the game open with a three-run frame in the sixth, when former A's Jonah Bride and Christian Bethancourt hit back-to-back RBI doubles before Chisholm drove home Bethancourt with a run-scoring single.

The 12 runs and 14 hits set new season highs for Miami's offense. The Marlins are now averaging 8.5 runs per game on Sundays compared to 2.9 runs per game on the other days of the week.

"We got God on our side," Gordon said, smiling. "That's it."

Rookie right-handed reliever Eli Villalobos, who was promoted earlier on Sunday, made his MLB debut in the ninth inning in front of friends and family. The Southern California native wrapped up the game by striking out Abraham Toro and had a huge smile on his face as he got the ball from Bethancourt. Villalobos' parents were on a Mexican cruise but will eventually be handed the ball upon their return.

"I felt really calm down there waiting and then as soon as I heard the name be called, it started going fast," Villalobos said. "But just excitement. … I really wanted to get [a strikeout], so to end it like that was awesome."