Get rating cast by a specific user

Find out exactly what rating a specific user gave to a specific element...

craft.starRatings.userRating(userId, elementId [, key = null])

Parameter	Description
userId	ID of user who cast rating
elementId	ID of element being rated
key	(optional) For elements with multiple aspects

The same can be done via PHP...

StarRatings::$plugin->starRatings_query->userRating($userId, $elementId [, $key = null])