It is more like 1 in 20 or maybe even 1 in 30.
The thought that woman are going to take a 1/4 of their paycheck, spend the night before handicapping, get to the track before the first race for their favorite area, get a voucher, send in some $24 P3 tickets, and focus all day at the track is absolutely nuts.
Don't get me wrong, I love woman at the racetrack but 99% of them are there for one or many of the following reasons
1) Nothing to do in the area so they can go be outside and have some drinks
2) Their group of guy friends are going out there and they are tagging along
3) It is a 'big deal' day and they get to dress up and look all hot, thus gathering massive amounts of attention all day
4) They are taking their family out there to show the kids the jockeys and the ponies
5) They are getting dragged out there by their boyfriend
6) They are on a date out there (actually a great idea for anyone that hasn't tried this, just go to a different track then your local hole)
7) They are there because they actually like racing, and they are betting, but in small amounts
I think even the girls on this board will admit they are not rolling to the track with $300 ready to go apeshit the whole day. I have been to the track with both Sightseek and Uncly. Sightseek was all dressed up and all about the horses, including repeativitly telling me how awesome She Be Wild was, when I didn't use her at all, and she maybe bet $50-$60 the whole day

..Uncly went and had a beer with me and was yelling exactas and win bets at this kid and bet all of maybe $60 the whole day and she was happy as pie.
Both of these girls have decent jobs, can handle themselves in a horse racing conversation and are completely competent with a Form, more then probably 90% of the woman in this world, and they are still aren't firing away.