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04/17/12 8:50 PM ET

Red Sox hosting free open house at Fenway

BOSTON -- A day before Fenway Park turns 100, it's hosting a house party.

The Red Sox will hold a free open house from 9 a.m. to 7 p.m. ET on Thursday, giving fans the chance to join in on Fenway Park's centennial even if they can't be there Friday against the Yankees.

Fenway, which hosted its first Major League game April 20, 1912, will be the first big league ballpark to reach 100 years of service.

"We invite families, particularly those enjoying school vacation week, to experience Fenway Park in a leisurely setting," Red Sox president/CEO Larry Lucchino said. "It is an opportunity for our loyal Red Sox fans to wander around the ballpark and savor the history of this living museum as we commemorate the 100th anniversary of Fenway Park."

Fans who attend can walk around the ballpark at their own pace. The warning track, dugouts and bullpens will all be available for up-close looks. Fans can get personal with the Green Monster and the left-field scoreboard, too.

Former Red Sox players like Oil Can Boyd, Bernie Carbo, Frank Malzone and John Tudor will be on hand to sign autographs. Alumni will be available throughout the day, changing every hour on the half hour.

The open house is scheduled to be held rain or shine. The Red Sox have no game scheduled Thursday.

Evan Drellich is a reporter for MLB.com. Follow him on Twitter @EvanDrellich. This story was not subject to the approval of Major League Baseball or its clubs.