A last-ditch display of dogged determination dragged Hong Kongs Jason Hak Shun-yat back into medal contention on Thursday during the third round of the mens golf event at the National Games.After a fine start of three birdies through the first five holes, the 27-year-old began to struggle for consistency around the turn. His round was petering out at one-under par for the day, which would have seen him slump down the lead