Now in June, they are trying to battle back from a recent slump.
As individuals, several Marlins will need to rally to earn starting spots for the National League in the All-Star Game.
The latest rankings are out and only one Miami player is in the top three at his respective position. Omar Infante, who has been one of the team's steadiest performers, is third among NL second baseman.
Infante has 737,715 votes, which is still way off the pace of Atlanta's Dan Uggla, who has 1,341,088. Brandon Phillips of the Reds is second with 885,250 votes.
The only other Marlins player in the top five is shortstop Jose Reyes, sitting fifth with 662,199 votes. Colorado's Troy Tulowitzki tops the position with 1,200,256. St. Louis' Rafael Furcal (1,183,096) is making a push from the second spot.
Perhaps the biggest surprise in the balloting is the fact Giancarlo Stanton isn't in the top 15 among outfielders.
Closer Heath Bell is openly lobbying for Stanton to receive support.
Fans can cast their votes for starters up to 25 times at MLB.com and all 30 club sites -- online or via a mobile device -- using the 2012 All-Star Game MLB.com Ballot until Thursday, June 28, at 11:59 p.m. ET.
Fans can also once again participate in the State Farm Home Run Derby Fan Poll. Fans will have the opportunity to select three players in each league who they would most like to see participate in the State Farm Home Run Derby. The 2012 State Farm Home Run Derby -- part of Gatorade All-Star Workout Day -- will be broadcast live on ESPN, ESPN HD, ESPN Deportes and ESPN Radio in the United States beginning at 8 p.m. ET on Monday, July 9.
The 2012 American League and NL All-Star teams will be unveiled on Sunday, July 1, on the 2012 MLB All-Star Game Selection Show, televised nationally on TBS. Baseball fans around the world will then be able to select the final player on each team via the 2012 All-Star Game Final Vote on MLB.com.
And the voting doesn't end there. The final phase of All-Star Game voting will again have fans participating in the official voting for the Ted Williams All-Star Game Most Valuable Player Award presented by Chevrolet. During the Midsummer Classic, fans will vote exclusively online at MLB.com via the 2012 All-Star Game MLB.com MVP Vote, and their voice will represent 20 percent of the official vote determining the recipient of the Arch Ward Trophy.
The 2012 All-Star Game will be played at Kauffman Stadium in Kansas City on Tuesday, July 10. Come to MLB.com for extensive online coverage of the All-Star Week festivities.
The 83rd All-Star Game will be televised nationally by FOX Sports, in Canada by Rogers Sportsnet and RDS, and worldwide by partners in more than 200 countries via MLB International's independent feed. ESPN Radio and ESPN Radio Deportes will provide national radio coverage of the All-Star Game. MLB Network and Sirius XM also will also provide comprehensive All-Star Week coverage. For more information, please visit allstargame.com or royals.com/asg.
Stanton was the NL Player of the Month in May, belting 12 homers and driving in 30 runs.
The 22-year-old right fielder is among the home run leaders in the league.
Stanton is a candidate to appear in the Home Run Derby.
Last week, MLB announced that Matt Kemp will be the captain of the NL Derby team. In an interview with MLB Network, Kemp mentioned Stanton as a possible choice.
If asked, Stanton said he would be interested.
"I think he's going to make it, because Matt Kemp is going to get him for the Home Run Derby," Bell said. "I think if he gets a chance to go, he will start making a name for himself. I think if you do things the right way, and you play right, you can get your name out there. You don't always have to do stupid and silly things. It's one of those things. He plays the game right and he's getting better."