PGA Tour rookie Jackson Koivun shot a 61 in the third round of the 3M Open to take a three-stroke lead at 20-under par.

TPC Twin Cities course record 59 for Michael Kim propels him into lead on the PGA Tour's 3M Open in Minnesota.

After a tournament record back nine of 28, young superstar Jackson Koivun takes a three shot lead into the final round of the 3M Open.