I've noticed that my running segment times are ranked with biking times. I'm not sure that makes any sense; I can't think of a scenario where I'd want to compare my running time against a bike time.
There also appears to be an issue with the age filter. If you filter by some criteria and then switch back to the "all" option for that criteria the list is not the same as when the page originally loaded. I'm guessing that when the page first loads it includes people that haven't specified their age, weight, sex but when changing the filter criteria back, those people are then not included in the results.