The filing, citing figures from the USSF's 2015 financial report, says that despite the women's team generating nearly $20 million more revenue last year than the U.S. men's team, the women are paid almost four times less.
It appears they have a case. I haven't investigated the $20 million claim, but there are several factors at play: one, the women's team is much, much more successful than the men's team; two, I am nearly positive the men's team still generates way more eyes-on-TVs. What exactly that means for "revenue" -- no idea.
I forgot how to spell the girlski tag.