Mahaney Diamond, home field of the University of Maine baseball team, is named for its chief benefactor, Larry K. Mahaney, a 1951 graduate of the University, a former assistant coach at the school and a 1995 inductee into the University’s Sports Hall of Fame. He is now president of Webber Oil Company and owns several hotels.

Mahaney Diamond previously served as the home field of the Bangor Blue Ox, a member of the Northeast Independent League from 1996 to 1997.

One of the most beautiful college baseball facilities in the East, the complex has been the object of constant tinkering and upgrades over the years.

Most recently, new clay was added to the infield and new practice screens and pitching machines were acquired.

Bangor Baseball assisted with several improvements in the late ’90s. The Blue Ox organization replaced the outfield fence, added clay to the infield, crushed stone to the warning tracks, box seats along the third base line, purchased a new lightweight tarpaulin, paved walkways behind the grandstand, and assisted with needed repairs and a new coat of paint for Mahaney Clubhouse.

In Palmer Lounge, inside the clubhouse, new trophy cases have been erected to display the many UMaine baseball conference and NCAA Tournament awards.

In 1994, the dugouts were refurbished and additional clay was added to the infield as part of a long-range plan to keep the field in the best possible condition. A sprinkler system was installed that allows for watering at night.

In 1993, foul poles, previously used at the Ballpark in Old Orchard Beach, Maine, were installed. The markers are twice as high and wider than the previous foul poles.

In 1989, the Mahaney Clubhouse was completed. A two-story building constructed along the third base line, the Clubhouse contains locker rooms with 34 lockers, showers, equipment and training rooms plus a video room on the ground floor. The William Palmer Lounge, a reception area and offices for the coaching staff, are on the second floor. Private donations provided the funding for the new facility which includes a deck overlooking the playing field.

The seating capacity increased to 4,000 in 1986 following the completion of two metal stands, each accommodating 670 people. The field itself measures 330 feet down both foul lines, 375 feet in the power alleys and 400 feet to dead center.

In the fall of 1984, a new warning track around the outfield, warm-up areas for both teams, and water coolers in the dugouts were installed.

Consultant for the infield was Joe Mooney, head groundskeeper for the Boston Red Sox.

Mahaney Diamond has accommodated as many as 4,800 fans during tournament play and other attractive series, and has been the site of five NCAA Regional Tournaments, the ECAC North Playoffs in 1985, the ECAC Tournament in 1990 and 1991, and the North Atlantic Conference Championship in 1996.

Mahaney Diamond has been host to Eastern Maine Amateur Baseball League games and the Northeast American Legion Tournament. In addition, high school playoff games have also been played on the UMaine facility.