Red Room at Cafe 939 (Berklee College of Music) — Berklee Original Open Mic (BOOM)

Both sources give the same night and time, but neither confirms recent activity.

The venue's own page, checked Aug 2026, confirms this mic is 'held on the last Monday of each month,' restricted to current Berklee students [s1]. Its example dates are stale (2023-2024), a frozen-template warning sign. A separate Berklee calendar is actively maintained into Sep 2026 and lists the series with an image uploaded in March 2026, though the next date is unpinned [s2]. Existence and the restriction are well supported.