Each class is one hour. Two nights a week there is a technique class and a sparring class back to back. One sparring class is only 45 minutes.
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Just had a look at the schedule to refresh my memory. The sparring classes after the fundamentals on those two nights are actually only scheduled for a half an hour. And I did forget one technique class that I've never been able to go to because it is in the day. So after all is said and done there is only 8.75 hours of class each week. 4 hours of technique class, 4.75 for sparring. I really wish we had the whole, two hour class with warm ups, drills and rolling all incorporated, but gotta make do.