As players leave the tennis courts and the outdoor racquetball courts and head inside, racquetball courts can see a lot more traffic. Winter is the season of state and regional racquetball tournaments, with them happening from October thru January, culminating in the national doubles tournament in Tempe, Arizona in February.
Doubles Fundamentals with Racquetball Warehouse
http://www.racquetballwarehouse.com/videovault/doubles.html#N-pCy9Fjhe0
Matches and instructional videos:
http://www.youtube.com/results?search_query=racquetball+doubles