looks like she is eligible this year
I got it wrong sorry, she has to be 22, I have found the rules and are listing them below;
WNBA DRAFT Eligibility
A player is eligible to be selected in the Draft at the earliest occurrence of the following: A. She had (or will have) her 22nd
birthday during the calendar year in which the draft is held, and she
either has no remaining intercollegiate eligibility or renounces her
remaining intercollegiate eligibility by written notice to the WNBA at
least ten days prior to such draft. B. She has graduated from a
four-year college or university, or is to graduate from such college
or university during the three-month period following such draft and
she either has no remaining intercollegiate eligibility or renounces
her remaining intercollegiate eligibility by written notice to the
WNBA at least ten days prior to such draft. For the purpose of this
subsection B, is to graduate means that such player would graduate
from the college or university she is currently enrolled in if she
were to successfully complete the coursework she is enrolled in at the
time of such draft and such course load is commensurate with previous
course loads she has successfully completed. C. She attended a
four-year college or university, her original class in such college or
university has already been graduated or is to graduate during the
three-month period following such draft, and she either has no
remaining intercollegiate eligibility or renounces her remaining
intercollegiate eligibility by written notice to the WNBA at least ten
days prior to such draft. For the purpose of this subsection C, is
to graduate means that the majority of the students in such class
would graduate from such college or university upon successful
completion of the coursework the members of such class are enrolled in
at the time of such draft. D. She is an international player (meaning a
player who was born and resides outside of the United States) who has
had (or will have) her 20th birthday during the calendar year in which
the draft is held. E. The league will circulate a list of any otherwise
eligible players who renounce their remaining intercollegiate
eligibility on April 4. Please note that a player who: (i) is
competing in the NCAA tournament during the period that begins ten
days prior to the draft; (ii) has remaining intercollegiate
eligibility beyond the 2010-11 season; and (iii) is otherwise eligible
for the draft, may make herself eligible for the draft by renouncing
her remaining intercollegiate eligibility within the period beginning
at the conclusion of her final NCAA game and ending twenty-four hours
thereafter. If any such players still playing on April 4 renounce
their remaining intercollegiate eligibility, we will circulate a
second eligibility e-mail as soon as we receive written confirmation
of the renouncement.