American Invitational Mathematics Examination was created in 1983.
Pui Ching Invitational Mathematics Competition was created in 2002.
American Mock Trial Invitational was created in 2006.
Pasco Invitational was created in 1962.
The Style Invitational was created in 1993.
American Journal of Mathematics was created in 1878.
American Institute of Mathematics was created in 1994.
American Mathematics Competitions was created in 1950.
Chicago Invitational Challenge was created in 2007.
Eastern Open Invitational was created in 1950.
Women's Basketball Invitational was created in 2009.
Golden West Invitational was created in 1960.
Hawaiian Islands Invitational was created in 2011.