The tournaments are Wednesday6pm-9pm, Friday6pm-9pm,and Saturday 1pm-3pm. 5$ entree and when they do the ultimate duelist series tournament the entree fee is 10$ and they usually do top 4 prizing depending if enough players show up.and this isn't a regular card shop it is the # 1 official Konami card shop in the south bay and there is a Konami ID requirement but the shop will give you a free Konami ID.i hope this helped.
There's not age requirement and it works like a normal Yu-Gi-Oh tournament
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