Best in Class – ZNA NorCal Koi Show Koi Show Winners, ZNA NorCal Koi Show Best In Class ZNA NorCal Koi Show – 2017 Variety: Showa Search Our Koi Champions by Tag 2017 ZNA NorCal, Best In Class, Showa Posted on June 28, 2017 ← Reserve Grand Champion B – Champion Koi – Asagi – ZNA Potomac Grand Champion – ZNA NorCal Koi Show →