USBC OPEN CHAMPIONSHIPS ENTRIES
1980 Louisville, KY 6,269 teams
1981 Memphis, TN 6,400
1982 Baltimore, MD 6,627
1983 Niagara Falls, NY 7,132
1984 Reno, NV 8,380
1985 Tulsa, OK 7,700
1986 Las Vegas, NV 10,019
1987 Niagara Falls, NY 7,480
1988 Jacksonville, FL 7,562
1989 Wichita, KS 7,717
1990 Reno, NV 9,199
1991 Toledo, OH 8,359
1992 Corpus Christi, Texas 8,557
1993 Tulsa, Oklahoma 8,518
1994 Mobile, Alabama 9,285
1995 Reno, Nevada 17,285
1996 Salt Lake City, Utah 9,764
1997 Huntsville, Alabama 9,480
1998 Reno, Nevada 15,925
1999 Syracuse, New York 9,912
2000 Albuquerque, New Mexico 10,688
2001 Reno, Nevada 16,104
2002 Billings, Montana 10,806
2003 Knoxville, Tennessee 12,203
2004 Reno, Nevada 16,585
2005 Baton Rouge, Louisiana 13,222
2006 Corpus Christi, Texas 12,606
2007 Reno, Nevada 16,235
2008 Albuquerque, New Mexico 12,615
2009 Las Vegas, Nevada 17,200
2010 Reno, Nevada 14,109
2011 Reno, Nevada 12,553
2012 Baton Rouge, Louisiana 11,794
2013 Reno, Nevada 10,253 (estimated)