It looks like NC will be week six again...
"April
7-9
2011 FIRST NC Robotics Regional Tournament - a high school robotics tournament featuring competition between 44 teams from across the country and Brazil. Spectators are welcome from 9 am - 5 pm on April 8 and 9- no spectator admission fee. Sponsored by NASA, Cisco and Credit Suisse."
http://www.ncstatefair.org/events/4-11.htm
Week 1 (3/3/11-3/5/11)
+Greater Kansas City Regional (posted)
+Finger Lakes Regional (break)
Week 2 (3/10/11-3/12/11)
+Florida Regional (break)
+WPI Regional (break)
+Wisconsin Regional (confirmed on venue website)
Week 3 (3/17/11-3/19/11)
+Boilermaker Regional
Week 4 (3/24/11-3/26/11)
+DC Regional (posted)
+Autodesk Oregon Regional
+Hawaii Regional
+Palmetto Regional
+Philadelphia Regional
+Long Island
Week 5 (3/31/11-4/2/11)
+Las Vegas Regional (posted)
Week 6 (4/7/11-4/8/11)
+Virginia Regional (posted)
+North Carolina Regional (confirmed on venue website)