Query Newbie

I have been reading this is how I am able to articulate my problem with some degree of knowledge.

I have 3 tables as Follows:

Table 1. [ID]pk, [Contestant Name],[Event],[Category],[Class]

Table 2. [ID]pk, [Judge Name],[Event],[Category]

Table 3. [ID]pk, [Contestant Name],[Event],[Category],[Class],[Score1],[Score2],[Remarks]

Table 3 is a record of score from a specific Judge to a specific contestant. There will be a record for each contestant from each judge that is judging that specific [Event] & [Category]. therefore if there are two judges and two contestants there will 4 records entered into the table.

Problems 1. (I can't get my tables related properly)
I should not have to enter the duplicate information each time I enter a record into the Table3. The common information should be available within the other tables using queries.

Why i think I have problem 1:
There is a many to many relationship here on the parent form what i want is the [Judge Name], [Event], [Category].
On the related Sub form i want to see a query that shows me parts of tables 1,2,3 for each Contestant that is entered in the matching [Event],[Category] combined with the query of 1,2,3 and be able to enter this judges scores against the contestant Name and then when I change to a new judge I may see the same contestants but be able to enter a new score record against that contestant with a different judge.

In English
Assume you are a judge for a contest you have a form in front of you
Parent form Select your Event, Name, Category from a pull down box in the sub form you are presented with a list of Contestants that are on stage. You enter Score1 & Score2 for each Contestant and the record is created.

Judge #2 is doing the same thing
He selects his Event,Name, Category from the pull down menu on the Parent form and walla the subform populates with the same contestants as Judge#1 and he enters his Score1 & Score2 into the subform
and
What we have is 2 Judges, 5 Contestants and 10 Records created into Table3

Sorry for the length but the last part helps me visualize what I am trying to explain.

End result is I can't get it to work is this a job for a union query ?