NEWTOWN SQUARE, Pa. — The stage is set for an incredible Sunday at the PGA Championship.

Alex Smalley held a two-shot lead overnight, following an impressive back-nine 31 to retake the lead after he lost it earlier in the day. He started the day as the statistical favorite, but it’s going to be tough sledding for the 29-year-old who has never won on TOUR, let alone contended in a major championship.

That’s only intensified by the names chasing him. Rory McIlroy, Scottie Scheffler, Xander Schauffele, Ludvig Åberg, Jon Rahm, Patrick Reed and Justin Rose are all within striking distance.

So how will it play out? We’re providing live updates all day from on-site at Aronimink Golf Club (all times ET).

12:21 p.m.: Kurt Kitayama has set an early tone for championship Sunday. He cards a 63 in the early morning, tying the major championship record for the lowest score in a final round.

We saw this script play out Saturday with players like Justin Rose taking advantage of softer morning conditions before the wind arrived and posting a number. For Rose, it was enough to climb into the top 12. For Kitayama, it vaults him to 3-under and currently inside the top seven before the front page of the leaderboard tees off.

The wind looks to play much less of a factor on Sunday, with gusts projected to not jump above 20 mph.

Scottie Scheffler will likely need something similar to Kitayama if he hopes to defend his PGA Championship title. His round is just getting underway.

11:31 a.m.: Jordan Spieth is 2-under through four holes. If he could just go out in 29…

I’m joking, we’re not going to get caught up in that game. And as this is being typed out, he just bogeyed the fifth. Vindication!

Still, it’s worth lingering on Spieth. This is going to be his 10th failed attempt at completing the career grand slam. Spieth has said if he’s only going to win one tournament the rest of his career, he wants it to be this one. That’s for obvious reasons. It would vault Spieth into the pantheon of modern golfers who have completed the career Grand Slam, but contention at this tournament feels far off.

Spieth hasn’t finished better than T29 in this tournament since 2019. He’s still searching for his first top 10 this season. He continues to say he’s close and that it’s simply a game of whack-a-mole. When one part of his game is on, another is off. The statistics bear that out this season, but it’s fair to wonder whether all the facets will line up at one tournament. This week, Spieth ranks top-15 in Strokes Gained: Tee-to-Green, but he’s among the bottom five in putting.

The game of whack-a-mole continues.

10:30 a.m.: We have our first indication of what low numbers could be out there. Kurt Kitayama, 4-over to start the day, just shot 30 on the front nine and has jumped into red numbers.

Kitayama is likely too far back to fully mount the charge, but it paints a picture of what’s possible. There were 30 players within five shots of the lead to begin the day. It’s very likely at least one of them will post a number like Kitayama. That means we could have a new leader well before the final groups tee off.

It’s just our first whiff of the chaos that is likely to ensue over the next eight hours. Buckle up.

10:00 a.m.: Good morning from Aronimink! We’re set up for a wild final day, with way more questions than answers. One variable that will determine a lot today: how gettable is the golf course?

If we see low scores out there this morning, that brings a lot more people into the mix for this tournament. With the bunched nature of the leaderboard, it could also lead to someone posting a low number early and hanging around the Aronimink clubhouse all day to see if someone can top it.

To start, here are the notable tee times (ET) to follow throughout the day.

• 2:35 p.m.: Alex Smalley (6-under), Matti Schmid (4-under)
• 2:25 p.m.: Jon Rahm (4-under), Nick Taylor (4-under)
• 2:15 p.m.: Ludvig Åberg (4-under), Aaron Rai (4-under)
• 2:05 p.m.: Rory McIlroy (3-under), Xander Schauffele (3-under)
• 1:55 p.m.: Patrick Reed (3-under), Maverick McNealy (3-under)
• 12:45 p.m.: Chris Gotterup (2-under), Hideki Matsuyama (2-under)
• 12:05 p.m.: Scottie Scheffler (1-under), David Puig (1-under)
• 11:05 a.m.: Cameron Young (even-par), Si Woo Kim (even-par)
• 10:35 a.m.: Jordan Spieth (1-over), Rico Hoey (1-over)
• 9:19 a.m.: Matt Fitzpatrick (3-over), Sahith Theegala (3-over)