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'''K2 Challenge''' is a series of events hosted by cousins Phil Keffer and John Keffer. The event has taken place in State College, Pennsylvania.==Tournaments=====K2 Challenge 2014==={{Main|K2 Challenge 2014}}The K2 Challenge 2014 happened on March 15 2014 at the Atherton Hotel (125 S Atherton Street, State College, PA, 16801, United States). The winner was Danny McGlynn.===K2 Challenge 2015==={{Main|K2 Challenge 2015}}The K2 Challenge 2015 happened on March 14 2015 at the Atherton Hotel (125 S Atherton Street, State College, PA, 16801, United States). The winner was Garion Sutton.===K2 Challenge 2016==={{Main|K2 Challenge 2016}}The K2 Challenge 2016 happened on March 12 2016 at the Atherton Hotel (125 S Atherton Street, State College, PA, 16801, United States). The winner was Marcel Lojet.===K2 Challenge 2017==={{Main|K2 Challenge 2017}}The K2 Challenge 2017 happened on March 4 2017 at the Atherton Hotel (125 S Atherton Street, State College, PA, 16801, United States). The winner was Jonathan Lewis.