The New Zealand international grabbed her first goal for the club in the first minute of the game, slotting the ball past the Everton goalkeeper after a great pass from My Cato.
Riley earned a strong 7.1 rating from respected statistics website WhoScored, after her fine finish put Palace in the lead.
She won 35.1% of of your votes, with October Player of the Month Lexi Potter coming in second with 21% of the vote.
Captain Aimee Everett and My Cato came in joint third, with each player having 11.8% of the vote.
See the full results of your TEN Player of the Match vote below!