Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
Defending champion Peter Norfolk defeated David Wagner in the final, 7–6, 6–1 to win the quad singles wheelchair tennis title at the 2009 Australian Open.
Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-players-ties, head-to-head records; 4. in three-players-ties, percentage of sets won, or of games won; 5. steering-committee decision.