Miami, FL (My Sportsbook) - Hanley Ramirez hit the first grand slam of his career and finished the game with five RBI as the Florida Marlins downed the Washington Nationals, 12-6, on Opening Day.

Emilio Bonifacio went 4-for-5 with a two-run inside the park home run, three stolen bases and four runs scored, while Jorge Cantu belted a two-run home run. Jeremy Hermida added a solo shot for the Marlins, who went 84-77 last season to finish in third place in the NL East.

Ricky Nolasco (1-0), who won 15 games last season, got the win as he went six innings and gave up five runs -- four earned -- on six hits with six strikeouts.

Adam Dunn made a successful debut for the Nationals, who posted the worst record in the majors last season with a mark of 59-102. He went 2-for-4 with a three-run home run, four RBI and two runs scored.

John Lannan (0-1) was tagged with the loss as he was charged with six runs on six hits in just three innings of work.

Florida jumped out to a 2-0 lead in the first inning. Bonifacio led off with a single and then stole second. John Baker then punched a double into left field that was just out of the reach of Dunn. After Ramirez used a sacrifice bunt to move Baker to third, Cantu grounded out to shortstop to plate Baker.

In the third inning, the Marlins plated four more runners. A Ramirez run- scoring double was followed with a Cantu blast into the left field stands. After Dan Uggla lined out, Hermida launched a pitch into the right field seats for a 6-0 advantage.

RBI doubles from Dunn and Austin Kearns in the fourth inning got Washington on the board, but Bonifacio answered in the bottom of the inning with a two-run, inside the park home run for an 8-2 lead.

Dunn slammed a pitch deep into the right field stands in the sixth inning to cut Washington's deficit to 8-5.

However, Florida responded in the bottom of the frame to extend the lead. Steven Shell relieved Wilfredo Ledezma and, with the bases loaded, the first batter he faced was Ramirez. On a 1-1 pitch, Ramirez roped a curveball over the left-center field wall for a 12-5 advantage.

"I was just trying to make contact with the ball and drive home some runs," said Ramirez. "I got a good pitch and was able to make a drive on it."

Jesus Flores' RBI single in the top of the ninth accounted for the final score.

Game Notes

The last time an inside the park home run was hit on Opening Day was in 1968, when Carl Yastrzemski did it with the Red Sox...Florida took 14 of 17 games against Washington last season...The Marlins are now 9-8 on Opening Day and the Washington/Montreal franchise is 19-22 in the first game of the season.