The Birmingham Barons, the Double-A affiliate of the Chicago White Sox, play at Regions Field, a 8,500-seat ballpark that opened in 2013 directly adjacent to Railroad Park in downtown Birmingham. Michael Jordan played for the Barons during his 1993-94 baseball sabbatical, a period that looms surprisingly large in local memory.
A Barons game is one of the best cheap evenings in the city — tickets are inexpensive, the park has good food and beer options beyond the usual stadium fare, and the atmosphere is relaxed. The combination of Railroad Park across the street (good for pre-game walks) and the stadium's proximity to downtown restaurants makes it easy to build an evening around.