Casey finished the tournament at six - under - par , tied with Hahn and Dustin Johnson .
In February 2015 , Casey finished in a tie for second at the Northern Trust Open after losing in a sudden - death playoff to James Hahn .
Casey finished the tournament at six - under - par , tied with James Hahn and Dustin Johnson .
In February 2015 , Casey finished in a tie for second at the Northern Trust Open after losing in a sudden - death playoff to James Hahn .