Reserve Grand Champion B – 2015 ZNA Potomac Koi Show Koi Show Winners, ZNA Potomac Koi Show Reserve Grand Champion A ZNA Potomac Koi Show – 2015 Variety: Kawarigoi Owner: Jason Yates Search Our Koi Champions by Tag 9/9/2015, Jason Yates, Kawarigoi, Reserve Grand Champion B, Vienna Virginia, ZNA Potomac Koi Show Posted on April 22, 2016 ← Reserve Grand Champion A – 2015 ZNA Potomac Koi Show Mature Champion A – 2015 ZNA Potomac Koi Show →