For anyone who might not know, an open mat is an open training session at which there is no organized instruction. Students train and use the time/mat as they see fit in order to improve their jiu-jitsu. Visitors are charged a decreased mat fee of $15.
This is a structured class with a brief warm-up, followed by an open drill period, and an open mat. The aim of this training is to allow for students to drill, revisit, and explore techniques they feel they need work on under the guidance of a structure/instructor.