Who is the 2009 GSN Jeopardy winner?

By checking the history of this quesion, we see that it was posed on Saturday, September 5, 2009.

Season 25 ran from Sept. 8, 2008 to July 24, 2009. Season 26 began Sept. 14, 2009. Episodes airing between July 25 and Sept. 13, 2009 were reruns from Season 25 or from earlier years. It would be virtually impossible to give a definitive answer to your question unless additional information is provided, such as the names of the contestants playing on the episode in question.