With my opponent selection settings set to -50 below and any above, I got 18 straight opponents ranked lower than me....most of them in the -40 to -50 point range. They should alternate between a better opponent and a worse opponent.
The algorithm may have not had members that were higher rated than you seeking games that also had your rating within their range. Most people would rather have a game than spend a long time waiting.
With my opponent selection settings set to -50 below and any above, I got 18 straight opponents ranked lower than me....most of them in the -40 to -50 point range. They should alternate between a better opponent and a worse opponent.