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    vs.      
Jonas Koestler trails the series against Matthew Nass, 0-2.

event round table player one result player two
Grand Prix Pittsburgh 2011101Koestler, Jonas (1987)Lost 1-2Nass, Matthew (2006)
Grand Prix San Diego 2011930Koestler, Jonas (1905)Lost 1-2Nass, Matthew (2019)