It was the home field of the Kenosha Comets of the All-American Girls Professional Baseball League (AAGPBL).

[2] While in Kenosha, $350,000 of improvements were made to Simmons Field and the Twins won two Midwest League championships.

[2] Simmons Field was home to professional baseball once more in 2003 when the Dubois County Dragons of the independent Frontier League moved and became the Kenosha Mammoths, who left after one season.

Ballpark renovations before the 2024 season included an artificial turf playing surface, an all new state-of-the-art scoreboard to replace the old scoreboard, a brand new lighting system and an upgraded netting system behind home plate that extends down the baselines that are following Minor League Baseball’s field recommendations on fan safety netting.

[2][9] In left field, The Bambino, forms part of the wall along with the Miller Lite Fish Bowl Club.