Weekly, but no source gives the night. Something about this has changed recently — confirm before going.
Call to confirm the night
The sources disagree about whether it still runs.
The venue's own dated events feed confirms both the host, Savanna Rion, and the day, Tuesday, for this open mic (checked Sep 5, 2026) [s2]. The venue's own wording bounds the series to 'every single Tuesday night throughout July,' with four such postings and none for August [s2]. The feed's most recent posting since then is for a different kind of event, so whether the open mic continues into other months is unclear [s3].
The venue's own entertainment page confirms 'Open Stage with Chris Biester' every Wednesday at 9 PM, with content on the page dated as recently as Aug 2026, confirming it is current rather than stale (checked Aug 14, 2026) [s1].
A weekly Thursday open stage, 8 to 10 PM, has been confirmed on the Venue's Website. A fresh check of the homepage on Aug 14, 2026 did not turn up the event specifically [s1]. The page's own last-modified date of Dec 17, 2025 shows the site is actively maintained rather than stale [s1]. Nothing here contradicts the earlier finding.