Claire and Megan McNamara share a bat.

"We share everything," Megan said. "But she's only two batters ahead of me in the order, so sometimes I can't get as many practice swings as I'd like."

But really, how hard can it be for the Oceanside softball duo to share equipment when they've already shared so many things, including a bedroom and clothes?

Technically, they're fraternal twins. But the 16-year-old sisters -- Claire is older by one minute and Megan said "she never lets me forget it" -- still look nearly identical.

So do their stats: Claire, the leadoff hitter and shortstop, is hitting .452 with 24 runs, 14 RBIs and a .500 on base percentage. Megan, who bats third and plays centerfield, is hitting .442 with 21 runs and a .488 on base percentage.

"They're key on both sides of the ball for us," Oceanside coach Joe Supple said. "And they're the hardest workers on our team. I kicked them out of the gym at 9:30 the other night. I have to send them home or else they'll stay all night."

advertisement | advertise on newsday

The twins have been instrumental in helping third-seeded Oceanside advance to the Nassau Class AA championship series, where they'll face top-seeded East Meadow beginning tomorrow at 4 p.m. at Mitchel Athletic Complex.

In Game 1 of the semifinals on Tuesday, Megan doubled to score Claire for the go-ahead run in the fifth of a 3-1 win over Mepham.

"Megan is always able to move runners over and get them in," Claire said. "In the field, I know when it's hit to her I don't have to worry and she'll get to it."

Megan's analysis of Claire was . . . well, identical.

"Every time the ball gets hit to her I know it's an out," Megan said. "She's perfect with the backhand, she's always diving after balls . . . And she always starts the game off by getting on base."

Now they have Oceanside two wins away from its first county title since 2008.

"We've been playing softball together forever," Claire said. "To bring home a county championship together is what we've dreamed of."

It would be a great experience for them to share.