The stadium was built in 1984 and renamed after legendary Rainbow coach Les Murakami for the 2002 season.

In 1985, the roof, which was only the middle section, was extended down the first- and third-base lines and AstroTurf was laid over the entire playing surface, boosting the final cost to $12.2 million.

The two-tier press box is air-conditioned and carpeted, and has a radio and a television booth on opposite ends.

In 2013, the Rainbow Warriors ranked 13th in among Division I baseball programs in attendance, averaging 3,357 per home game.

DomoTurf is an artificial field system utilizing synthetic grass and rubber infill granules, which is said to better simulate real soil feel and reduce injuries.