2011
Regionals: Washington, DC (4-1, Top 16)
Nationals: Indianapolis, Indiana (3-4, 45th place)
2012
Fall Regionals: Fort Wayne, Indiana (4-3, 28th place)
Spring Regionals: Madison, Wisconsin (7-0, 1st place)
Nationals: Indianapolis, Indiana (6-2 Swiss, 2-1 Top Cut, 10-5 Overall, 8th place)
Worlds LCQ: Kona, Hawaii (2-1 Series, 4-3 Overall, Top 16)
2013
Fall Regionals: Fort Wayne, Indiana (6-1 Swiss, 3-0 Top Cut, 12-3 Overall, 1st Place)
Winter Regionals: Orlando, Florida (6-1 Swiss, 3-0 Top Cut, 12-2 Overall, 1st Place)
Spring Regionals: Madison, Wisconsin (6-1 Swiss, 1-1 Top Cut, 9-4 Overall, 3rd Place)
Nationals: Indianapolis, Indiana (3-4 Swiss, Drop)
Worlds: Vancouver, British Columbia (1-5 Matches, 3-10 Overall, 45th)
2014
Fall Regionals: Pleasanton, California (5-2 Swiss, 18th Place)
Fall Regionals: Houston, Texas (6-1 Swiss, 0-1 Top Cut, 7-3 Overall, 7th Place)
Winter Regionals: Salem, Oregon (4-3 Swiss, 48th Place)
Winter Regionals: Orlando, Florida (7-2 Swiss, 4-0 Top Cut, 15-4 Overall, 1st Place)
Spring Regionals: Seattle, Washington (2-3, Drop)
Spring Regionals: Salt Lake City, Utah (6-2 Swiss, 14th Place)
Premier Challenge: Bremerton, Washington (4-0 Swiss, 2-0 Top Cut, 8-0 Overall, 1st Place)
Premier Challenge: Auburn, Washington (2-2 Swiss, 9th Place)
Premier Challenge: Milwaukie, Oregon (3-0, 1st Place)
I've ended up using 46 different Pokemon over the last three years. Here are the usage stats for each one:
Everything else not listed was only used once
What's even more awesome is that I've ended up visiting 18 different states and provinces through my travels to these events.