The unofficial total number of females who participated in this year’s World Series of Poker Main Event was 216.  There is no official record since entrants are not designated by their gender by the WSOP. However, each player is counted at the start of Day One and they take an unofficial head-count of female players. 

216 female players in this year's WSOP represents about three percent of the field.  Here are the names of the last women standing in the main event over the years.(Note:  Only players who finished in-the-money were recorded):

No female cashed in the Main Event between the years 1970-1985.

1986 – Wendeen Eolis (25th)
1987 – None
1988 – None
1989 – None
1990 – None
1991 – None
1992 – None
1993 – Marsha Waggoner (19th)
1994 – Barbara Samuelson (10th)
1995 – Barbara Enright (5th)
1996 – Lucy Rokach (26th)
1997 – Marsha Waggoner (12th)
1998 – Susie Isaacs (10th)
1999 – None
2000 – Annie Duke (10th)
2001 – None
2002 – None
2003 – Annie Duke (47th)
2004 – Rose Richie (98th)
2005 – Tiffany Williamson (15th)
2006 – Sabyl Cohen-Landrum (56th)
2007 – Maria Ho (38th)
2008 – Tiffany Michelle (17th)
2009 – Leo Margets, a.k.a. Leonor Margets (27th) 

2010 - who will it be this year?