Robert Garrigus broke the 54-hole scoring record at the RBC Canadian Open that was set more than a half-century ago by Arnold Palmer.

Now he’ll try to win the same tournament where Palmer recorded his first career victory.

Garrigus shot a 64 Saturday and leads by one at 16 under through three rounds at a rain-softened Hamilton Golf & Country Club.

In 1955 at Weston Golf & Country Club, Palmer’s three-day total was one stroke higher.

A shot back of Garrigus is William McGirt, who shot 66, while Scott Piercy is two off the pace.

Scott Stallings, Chris Kirk and Bo Van Pelt are all 12 under.

Chris Kirk didn’t exactly envision the start he got off to on Saturday.

“Every time I hit a decent shot I'd have a 10-footer that was right edge up there, and kind of left myself in perfect position on the entire front nine,” Kirk said.

He took advantage of them, too.

Kirk birdied six of seven holes, including four in a row at one point, on the front nine during Saturday’s third round. He added another on the 10th and shot 63 to move into contention at 12 under in the RBC Canadian Open.

“It was a dream start,” Kirk said. “That front nine, everything was going right.”

Now he’ll hope for a dream finish as he tries to win for the second time in his career.

If Kirk keeps playing the way he has, he’ll certainly have a chance. He’s made just one bogey this week -- though it was a costly triple bogey on the 18th hole in the opening round.

Through two rounds, Kirk has hit 78 percent of his greens and ranks in the top 10 in strokes gained-putting.

“I always had the theory that you always have these days when the putts are going in the middle of the hole and everything's working out, so you have to get as many as you can on the days you have it,” Kirk said.

He did just that, taking 26 putts on Saturday.

The anticipated bad weather that caused officials to adjust the tee times and send players off both tees in groups of three for Saturday’s third round never showed up at Hamilton G&CC.

With a good forecast for Sunday, the final-round tee times will be back to normal.

Tee times will be from 7:30 a.m. to 1:40 p.m. ET Sunday, in twosomes off the first hole.

William McGirt and Robert Garrigus now share the lead at the RBC Canadian Open after a two-shot swing atop the leaderboard.

Scott Piercy, who had a share of the lead, found a hazard off the tee on the 10th hole before eventually making bogey. McGirt, meanwhile, made birdie and a hole later Garrigus did, too.

The result: McGirt and Garrigus now lead by two at 15 under. Piercy is two shots back.

Chris Kirk is another shot back at 12 under, while J.B. Holmes is one of a handful of players at 10 under after a 64.

The final group is approaching the turn at Hamilton G&CC, where there’s some separation at the top of the leaderboard.

Scott Piercy and William McGirt have traded spots at the top and are tied again at 14 under. Robert Garrigus, who briefly shared the lead at one point, is a shot back.

Chris Kirk and Josh Teater are another stroke back at 12 under.

Then there’s a large contingent of players at 9 under, including J.B. Holmes, Bud Cauley, Vijay Singh, Bo Van Pelt and Tim Clark.

Van Pelt, by the way, has a chance to earn a spot in next week’s World Golf Championships-Bridgestone Invitational.

What can we expect on the back nine? Fewer birdies. Each of the first two days, the back nine played more difficult than the front nine -- by nearly a full stroke on Thursday and nearly a half-stroke on Friday.

There’s now a three-way tie atop the leaderboard at Hamilton G&CC, where Scott Piercy, William McGirt and Robert Garrigus are all 12 under.

Garrigus has the day’s best round going of the group at 2 under through his first four holes.

Piercy briefly grabbed the lead by himself with a birdie on the opening hole, but he gave it back with a bogey on No. 3 before bouncing back with another birdie on No. 4.

Chris Kirk and Josh Teater are tied for fourth two shots back, while J.B. Holmes, Bo Van Pelt, Vijay Singh and Tim Clark are all 9 under.

Of that group, Clark has had the longest road back to this point. He had wrist surgery in 2010 and has struggled to find his form since.

He knew the road back would be tough -- he missed three of his first four cuts and was disqualified from the other -- but knew playing was the only way to get through it.

The last couple of months have been better for Clark, and he hasn’t made a bogey at Hamilton G&CC since the opening round.

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Vijay Singh is three shots off the lead entering the third round in Canada.

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The leaders are on the course at Hamilton G&CC, where scoring has been lower than usual thanks to soft conditions that have forced players to use lift, clean and place.

Scott Piercy and William McGirt share the lead at 11 under, but they have plenty of company with nine players within three shots of the lead.

Among that group: Vijay Singh, who has been solid in third rounds this year (he ranks 58th in third-round scoring).

Will Singh, or someone else, pass Piercy or McGirt?

Discuss the third round here.