Maria Joao Koehler: Player Ranked Outside the Top 100 Who Reached the Second Round of the 2013 Australian Open

This is the first time I've encountered Portuguese player Maria Joao Koehler, currently ranked #129 in the world.  Today, she won her first round match against German Karin Knapp, ranked #124 in the world, 36 63 63.  She will next meet Jelena Jankovic in the second round.