Palm Harbor, March 23 -- Korea's KH Lee fired a superb second round of 4-under 67 in tough conditions to surge into title contention at the Valspar Championship, where he is just two back of five co-leaders.

The two-time PGA TOUR winner surged 57 spots into a tie for 15th place on a congested leaderboard at Innisbrook Resort's Copperhead Course as he sought redemption for missing the cut at THE PLAYERS Championship last week.

Lee's two-day aggregate of 4-under 138 leaves him within striking distance of a group of five players on 6-under who include overnight leader Kevin Streelman (72), Stewart Cink (67), Chandler Phillips (68), Brendon Todd (69) and Mackenzie Hughes (68).

"Windy day, pretty hard conditions. But I tried to be patient. ...