"Champions" group is not the place post product related questions. It is intended for asking information about the champions program. You should move your question to products to give it max exposure. Read here for more on this: Getting the most of the community when you have a Marketo question
Now the contact role table is not synched in Marketo. Only the account field in the contact object is. YOu would imagine to sync it as a custom object, related to the contact. You would have only very limited info, though, because this object in SFDC is cannot be extended.