just make the playoffs and beat her there =P
I once saw a league where the rankings going into the playoffs was the exact opposite of the rankings coming out, for the people that made the playoffs anyways. lol
and for people with a lot of time
https://www.fanduel.com/Peter-King-Challenge?t=SI_MMQB
Free with prizes, can't really beat that. Well except the part where 2500 people participate each week......making it near impossible to win based on skill. Personal best last week ranking 380 out of 2477.