How are you matching values in a relationship?
If you set up this type of relationship:
PLayer::__pkPlayerID = Mental::_fkPlayerID
Then what you want to do here would be very simple as the only records that show in the portal would be those for the current player record.
Super, that is how I have it set up......how do find the last row date (I have a creationDate field). Obviously when I look at the table I have multiple player id's in it, so I can't count from the table..correct?
I can just barely see that the "sort" check box is not selected. When a relationship is unsorted, Last ( RelatedTable::Field) will return data from the most recently created record out of a given set of related records.