Daily Card Challenge
One card a day. Call where its price will be in 30 days. Nothing is staked: a correct call earns experience and a place on the boards.
How it works
Each day’s card is a PSA 10 worth $50 or more that sold at least 30 times in the last 90 days, with a well-evidenced price that isn’t swinging. The same card isn’t asked about twice within 90 days.
The five bands sit around the opening price. Your call is kept for good and can’t be changed. 30 days later the question settles at UltraBall’s price for that copy on the day, and the band it lands in is the right answer.
UltraBall Sentiment is the share of calls above, around and below the opening price. It is shown, with the number of predictions behind it, only once there are at least 25. It is what collectors expect, not a forecast.