We’ve reached the back nine at Hamilton G&CC, where William McGirt is leading by one.

Will he hang on for his first career victory on the PGA TOUR?

Well, here are two key statistics about his week so far: He hasn’t made more than one bogey in any one round, and he’s an amazing 55-for-55 on putts inside 10 feet.

William McGirt has since moved into the lead at 18 under, having played his first nine holes in  under.

Scott Piercy had it going for a while, however, with four straight birdies. Here’s a look at his birdie barrage.

Scott Piercy has birdied each of his last four holes to take the lead by himself at the RBC Canadian Open.

As good as he has started, though, he has company.

William McGirt is just a shot back after playing his first five holes in 2 under.

Overnight leader Robert Garrigus is only two off the lead, while Scott Stallings is two more strokes back.

It didn’t take long for someone to catch Robert Garrigus in the final round at Hamilton G&CC.

Actually two players did.

Scott Piercy birdied two of his first three holes, and William McGirt added a birdie of his own on No. 3 as both pulled even with Garrigus at 16 under.

Piercy stuck his approach to 5 feet on No. 2 to set up the first birdie, then rolled in a 15-footer one hole later for another.

Josh Teater and Bud Cauley, meanwhile, are three back after both started 3 under through their first six holes.

Troy Matteson is another stroke back after making the turn in 4 under.

The final group will tee off at 1:40 p.m. ET at Hamilton G&CC, where Robert Garrigus leads William McGirt by one.

Only 10 54-holes leaders have gone on to win this season on the PGA TOUR. Will Garrigus become the 11th? Or will McGirt or someone else catch him?

Discuss the final round here.

As mentioned, there are nine players within six shots of Robert Garrigus’ lead. Then there’s the fact that only 10 54-hole leaders have held on to win this season.

With that in mind, here’s a look at some of his contenders.

William McGirt – 15 under
McGirt is coming off a tie for fifth last week in Mississippi, and he’s carried that momentum to this week. He ranks first in strokes gained-putting, three-putt avoidance, putts per round and is the only player not to miss from inside 10 feet all week (47 for 47).

The flip side to that is McGirt ranks near the bottom of the leaderboard in fairways hit -- Saturday, he hit just four of 14.

In 2011, McGirt was the last player to make the FedExCup Playoffs. He came into this week 118th in the FedExCup standings. A win would move him to 35th.

Scott Piercy – 14 under
Piercy has finished in the top 15 in each of his last two events and has played his last 11 rounds in the 60s at a combined score of 42 under. That 11 in a row, by the way, is the longest active streak on the PGA TOUR.

Part of the reason Piercy is in contention again: Putting. He’s second in the field in strokes gained-putting.

He’s also driven it well, at least the first two rounds anyway when he hit 21 of 28 fairways.

Bo Van Pelt – 12 under
Van Pelt has a rather dubious honor in that he has the most top 10s on TOUR since 2010 -- 19 -- without a win.

Of course if you put yourself in position enough times, eventually you’ll win. That’s what Van Pelt is thinking of course.

The next closest players during that span, by the way, are Charles Howell III and Ryan Moore with 14.

Scott Stallings – 12 under
Stallings comes into the final round off a career-low 63.

His previous career low? A 64, which he shot twice during the True South Classic last week.

Chris Kirk – 12 under
Kirk opened with a 29 on the front nine in the third round on his way to a career-low 63.

It was also his 11th career bogey-free round on TOUR and marked the first time he’s had two bogey-free rounds in the same week since last year’s True South Classic, which was his only career win.

Is this Robert Garrigus’ week?

He’s certainly playing like it. Through the first three rounds, Garrigus is fifth in fairways, leads the field by 30 yards off the tee with a 324-yard average, is tied for first in greens in regulation and averaging 13 feet closer to the pin than the field average.

With numbers like those, and a couple of 64s, it’s a wonder he doesn’t lead by more than one.

This is the second time Garrigus has led going into the final round. The last time he did? The 2010 FedEx St. Jude Classic, where he led by three on the final hole only to make triple bogey and eventually lose in a playoff.

Garrigus won 5 months later for his only career victory, after which he talked about how he wouldn’t have been able to without the disappointment of what happened in Memphis.

He’s certainly played well this year with eight top 25s, including a couple of runner-up finishes and early this month he tied for fourth at the AT&T National.

Garrigus has company, though. Nine players are within six shots of him., and we’ve seen plenty of big comebacks this season.

William McGirt had not been in this position before -- playing in the final group, in serious contention to name a few -- but thanks to his playing partners he felt quite comfortable in the third round of the RBC Canadian Open on Saturday. "I think I handled it pretty well," said McGirt, who fired a 4-under 66 for a three-day total of 15 under, one shot back of leader Robert Garrigus. "It did help playing with Robert and Scott (Piercy). We got out there and just had fun. We were laughing and joking all day." McGirt is in his second year on the PGA TOUR. He's had four top 25s this season and only one top 10 -- which came last week at the True South Classic. Maybe he's heating up at just the right time. In any case, he's certainly looking forward to teeing it up in the final pairing with the easy-going Garrigus on Sunday. "He kind of knows what to say at the right time to me," McGirt said. "He just walked by today, I was a little miffed at not driving it in the fairway. He walks by and said something funny and I just busted out laughing, kind of takes your mind off of it."