Hunter Mahan leads Titleist golf ball loyalists to a 7-win week across the globe.
Tim Clark nearly set a new course record at Hamilton but had to settle for 62 to jump into contention at the RBC Canadian Open.
Clark jumped from even at the start of the day to 8 under and three shots behind leaders Scott Piercy (67) and William McGirt (66).
Robert Garrigus shot 66 to trail by a shot and sit alone in third place. Bo Van Pelt is another shot back in fourth.
Joining Clark in a tie for fifth are Josh Teater and Vijay Singh.
Open champion Ernie Els missed the cut by two shots, finishing at 2 over par.
Henley leads Deutsche Bank by 1 | Glance | Scores
McIlroy vaults into mix with 64 | Kirk matches
Reed: 82 and out | Henley: On top, under radar
You Oughta Know: Henley vs. McIlroy, Part II
Horschel improving RC odds | Day's back-9 woes
Gallacher falls just short in Italy; G-Mac on RC team
Donald (74) fails to help Ryder Cup cause
Cauley wins Web.com Finals opener | Scores
Division on Rd. 3 cut | FedEx No. 100 makes move
Couples sets course record, wins playoff | Scores
Week in Review: Grill Room's Top Photos, Quotes
Ernst captures first LPGA title in playoff | Scores
Otto wins Italian Open by two strokes | Scores
VIEW ALL TOURS & TOURNAMENTS
LATEST ON EQUIPMENT