Koivun moves 3 strokes up at the 3M Open with a 3rd-round 61 and tournament-record back 9

PGA Tour rookie Jackson Koivun shot a 61 in the third round of the 3M Open on Saturday to take a three-stroke lead at 20-under par, setting a tournament record with a 28 on the back nine at the TPC Twin Cities.

Emiliano Grillo and Ben Kohles each had a 65 and are tied for second at 17 under.

Michael Brennan shot a 63 and shared fourth with Chandler Phillips at 16 under.