Ascot Park is home of the International Women's Polo Association (IWPA), established in 1989, to promote and encourage more woman to learn and play polo. Affiliated to 35 countries worldwide, the IWPA hosts the UK National Women's Polo Tournament which is the largest women's polo event in the world.
| 2011 | ||
| 2010 | Rosie Ross, England | |
| 2009 | Nina Clarkin, England | |
| 2008 | Tamara Vestey, England | |
| 2007 | Eva Campos Reber, Spain | |
| 2006 | Milly Scott, England | |
| 2005 | Maria Chavanne, Argentina | |
| 2004 | Louisa Clothier, England | |
| 2003 | Sunny Hale, USA | |
| 2002 | Caroline Anier, France | |
| 2001 | Lesley Ann Masterton Fong Yee, Jamaica | |
| 2000 | Jolie Liston, USA | |
| 1999 | Victoria Grace, England | |
| 1998 | Sophie West, England |

