Bronx, NY (Best E Casino) - Carlos Delgado broke out of his slump by setting a club record with nine RBI, including a grand slam, to lead the New York Mets to a 15-6 drubbing of the New York Yankees in the first game of a unique day- night doubleheader at Yankee Stadium.

"I had a good game," said Delgado. "I got lucky. Every time I came up I had a lot of runners on base."

Delgado also hit a three-run homer and Carlos Beltran belted a two-run homer for the Mets, who won their second straight game on the heels of back-to-back losses. The Mets are 3-0 versus the Yankees this season as the venue will now shift across the Big Apple to Shea Stadium for the second game of the day tonight, and the second of the four-game Subway Series.

Alex Rodriguez homered and finished with three hits, two RBI and two runs scored for the Yankees, who have dropped two of their last three.

The Mets trailed 4-3, but produced three runs in the fifth to take a 6-4 edge and they led the rest of the way. The Mets got their first three runners on base courtesy of consecutive walks to Jose Reyes and Luis Castillo and then a single by David Wright. With the bases loaded, Reyes crossed the plate via a Beltran fielder's choice, and Delgado followed with a two-run double which brought in Castillo and Beltran. The at-bat for Delgado broke him out of an 0- for-16 slump.

"When he gets hot, he gets stupid hot," said Wright. "He can put a team on his back and carry it."

Jerry Manuel's club did not let up as they fired back with five more runs in the sixth to jump out to an 11-4 lead. Brian Schneider ignited the offense with a one-out single and moved to second on a walk to Reyes. Schneider raced to third on a fielder's choice hit by Castillo, and then came around on a Wright base hit. Ross Ohlendorf then walked Beltran to load the bases and Delgado's 12th grand slam of his career also brought in Castillo, Wright and Beltran.

Rodriguez got one run back for the Yankees in the bottom of the sixth with his 15th homer of the season to make it an 11-5 affair.

The Mets capped off their scoring with a four-run eighth. Three straight singles to start the inning by Reyes, Castillo and Wright got the first run home. Beltran then reached on a fielder's choice and Delgado followed with his 44th career multi-homer game.

"I swung at good pitches in my last three at-bats," said Delgado.

The club record of nine RBI passed Dave Kingman, who knocked in eight runs in 1976.

The Yankees added a run in the bottom of the ninth courtesy of a Johnny Damon single, which scored Wilson Betemit, who reached on a double.

Mike Pelfrey (5-6) earned the victory despite allowing four runs on eight hits and four walks in only five innings. The righty also struck out five hitters in his first career start versus the Yankees.

Dan Giese (1-3) got roughed up in his second career start. The Yankee righthander suffered the loss after yielding six runs on five hits and four walks in only four innings of work.

Each team got on the board with a run in the first. In the top of the frame, Castillo, who scored five times on the day, drew a one-out walk, stole second and came around via a base hit by Wright.

In the home portion, Bobby Abreu got it started with a two-out walk before scoring courtesy of back-to-back singles by Rodriguez and Jason Giambi.

After a scoreless second, both teams struck again in the third. Beltran supplied the power for the Mets with a two-run homer to right that also plated Castillo, who led off the frame with a lead-off single.

But the Yankees went ahead 4-3 in the bottom of the inning with three runs. Derek Jeter led off with a double, raced to third on a fly ball hit by Bobby Abreu and crossed the plate on a base hit by Rodriguez. Giambi followed with a walk and Jorge Posada then singled up the middle to load the bases with one out. Rodriguez made it 3-3 when he came in on a Robinson Cano fielder's choice and Giambi gave the Yanks the advantage when he was plated on a Betemit infield single.

The double-dip came about following a postponement on May 16. This is the third time the teams play each other in two different parks on the same day. The Yankees swept the first two twinbills on July 8, 2000 and June 28, 2003.