The first day in gold I was getting almost no fights at all, but once my deck got into platinum it got a LOT more plays. I think I had about 8 in gold, which was about 1-2 days, and when I leveled up to platinum, I got more like 20 a day. Right now I have a 36-4 record in 2 days in platinum, and before that my deck had 50-20 in I think 4 days. So, from my experience, platinum gets way more plays than gold. I don't know if there's any way to verify whether that was coincidence or not, unless you can find some other people that are on the boundary between gold and platinum.