The 97th PGA Championship takes place this week at Whistling Straits Golf Course in Sheboygan, Wis. GolfChannel.com is tracking the men's final major of the season through on-site reporting and social media. For additional coverage, click here for full-field scores. You can also check out our Day 2 blog here and all the action from Day 3 here. All-times for the PGA tracker are Eastern Daylight Time (EDT).
7:20PM: What a way to close out the 2015 major season ...
Jason Day is your 97th PGA champion. His 20-under total is the lowest score to par in major championship history. pic.twitter.com/mzKRZagbTZ— Golf Central (@GolfCentral) August 16, 2015
7:17PM: Incredible year for Spieth ...
Jordan Spieth joins Tiger Woods as only players w/ top-4 finishes in year's four pro majors. Spieth '15: 1-1-t4-2 Woods '05: 1-2-1-t4— Gil Capps (@GilCapps) August 16, 2015
7:12PM: That's all, folks! Jason Day two putts to win his first major at the PGA Championship.
7:11PM: Spieth pars 18 to finish second, and he's now No. 1 in the world.
7:07PM: Day and Spieth both hit the 18th green. Day enjoying the walk down the 18th fairway.
7:05PM: Rose bogeys 18 to finish at 14 under, Grace in solo third at 15 under.
6:58PM: Day smokes his drive down the fairway on 18 ...
Jason Day walks to the 72nd tee with a three-shot lead. A par gives him the PGA Championship and the lowest ever score to par in a major.— Golf Central (@GolfCentral) August 16, 2015
6:55PM: Nice two-putt par from Day on par-3 17th. Gets a big thumbs up from Spieth. Day leads by three heading to 18.
6:48PM: Quite the card from DJ ...
6:41PM: Day and Spieth both birdie par-5 16th, Day's back to 20 under and leads by three with two holes left.
6:35PM: Day hits the par-5 16th in two, Spieth finds the left bunker.
6:31PM: Update on the battle for No. 1 ...
World No. 1 watch: If Jordan Spieth stays where he is right now - he's in solo second by two - he'll pass Rory McIlroy.— Golf Central (@GolfCentral) August 16, 2015
6:28PM: Day and Spieth both find fairway at par-5 16th. Rose birdies up ahead on the green to get back to 15 under, four back.
6:25PM: Day bogeys 15 to fall back to 19 under, lead cut to three over Spieth with three to play.
6:20PM: Koepka shoots 6-under 66, currently T-6 at 13 under.
6:16PM: That's pretty good ...
Jason Day matches his hero Tiger Woods -- only 2 men to reach 20 under in a major. Tiger 2000 @TheOpen. Both on the 68th hole of the week.— Gil Capps (@GilCapps) August 16, 2015
6:11PM: DJ eagles par-5 16th and he's playing a crazy round of golf. Started with a quad, but is now 4 under on the day and 13 under overall.
6:08PM: Spieth makes a great up-and-down for par on 14 to stay at 16 under, but Day birdies to reach 20 under par. Leads by four with four to go.
5:51PM: And almost as if Spieth is following this blog, he drains the birdie putt. Day makes his par, and Spieth moves into solo second, just three back with five to play.
5:48PM: Spieth certainly hasn't given up on the tournament, but with Rory's closing 69, here's what he has to do to take the world No. 1 crown.
Rory closes with a 69 and is currently tied for 17th. Jordan can T-2 w/ 1 other & take over world No 1. #PGAChamp— Rex Hoggard (@RexHoggardGC) August 16, 2015
5:45PM: Day and Spieth both find the green on No. 13. Advantage Spieth on the hole. Advantage Day on the round.
5:37PM: Ridiculously tough sand shot for Day and he gets it to a couple feet from the hole. Spieth misses his putt and we have a couple of pars. Rose makes an untimely double-bogey 6 on No. 13. Looking more and more like Day's major to lose.
Day goes 4 up with six to play. Not a lock yet, but he’s certainly inching in that direction.— Rex Hoggard (@RexHoggardGC) August 16, 2015
5:32PM: Advantage Spieth on the par-3 12th. Looking at a makeable putt from the fringe while Day finds a deep bunker. Rose finds sand on No. 13, and barely gets it out. Could get messy.
5:27PM: Rose misses his third straight birdie by about an inch on No. 12. Spieth executes a great chip out of the rough but misses the birdie putt and has to settle for par. Day makes the casual two-putt birdie and gets back to that historical 19-under par.
5:19PM: Spieth goes for the par-5 11th hole in two. Yells at his ball to "go hard!" but his ball doesn't listen, hits something and takes a 90 degree turn left and into the thick stuff. Day meanwhile looking at about 40 feet for eagle.
5:15PM: Then there's the curious case of Justin Rose. Playing in the second-to-last group, he spins a perfect wedge into No. 11, makes the putt for his second birdie in a row. Just two behind Day.
5:08PM: Jordan Spieth with the much needed birdie on 10. Day makes a par and still sits three up.
Jordan Spieth joins Justin Rose in second place at 15 under with a birdie at No. 10. Pretty wedge. Very pretty.— Golf Central (@GolfCentral) August 16, 2015
5:03PM: In case anyone was wondering what happened to Dustin Johnson today. Wonder no more.
After opening with a quadruple bogey, Dustin Johnson just got back under par in his final round: pic.twitter.com/eqbAkMDo59— Golf Central (@GolfCentral) August 16, 2015
4:55PM: Day recovers with great up-and-down for par. Spieth makes bogey. Justin Rose, who we haven't heard much from today, makes a birdie on No. 10. Suddenly, Day leads by three, but over Rose. Spieth and Grace both four back. Could be the turning point.
Spieth's bogey and Grace's double drop them to four back. Day heads to the final nine with a three-shot lead over Justin Rose.— Golf Central (@GolfCentral) August 16, 2015
4:50PM: Grace, playing a hole ahead, does the exact opposite. Makes way too good of contact and blasts it across the 10th green. Then chip lands short and it comes right back to him. Could be the end for him.
4:45PM: And suddenly Day is struggling. Hits approach on No. 9 as fat as a Tour pro can hit it, comes up way short of the green.
4:35PM: Day's first blemish of the round comes at No. 8. Drive finds the sand and he's forced to punch out. Saves a bogey. Spieth can't capitalize, makes par.
Bogey at No. 8 drops Day back to 18 under. The lead is now two. That's his first dropped shot since he made double yesterday at 15.— Golf Central (@GolfCentral) August 16, 2015
4:24PM: Jason Day to 19 under with a 48-foot birdie putt at No. 7. He's currently tied with Tiger Woods for the low score to par in a major at 19 under.
Jason Day is on a mission. http://t.co/ID5J1SiCLq— PGA TOUR (@PGATOUR) August 16, 2015
4:14PM: For the second straight hole, Spieth and Day match each other with birdies. Day to 18 under. Spieth to 15 under. Day's lead is back to two. Heads are spinning. Dogs and cats are living together.
4:10PM: Branden Grace has birdied four of his last five holes, including his last three in a row. He's just one behind Day.
4:05PM: Jason Day is 17 under. Reminder:
Jason Day needs to play the last 13 holes in -3 to become the 1st player in major championship history to finish -20 or better #PGAChamp— Justin Ray (@JustinRayGC) August 16, 2015
4:01PM: Spieth's bounce-back ability is ridiculous. End update.
4:00PM: Jordan Spieth just walked in a birdie putt at the par-5 fifth. And Day answered. Spieth tied with Grace at 14 under, but Day's lead remains three.
3:46PM: Scratch that. Grace now in solo second after a birdie bomb at the par-5 fifth. And Rose is level with Spieth in third at 13 under. Live golf, people.
3:44PM: While the focus is on the final pairing, Spieth is actually tied for second with Branden Grace at 13 under. Grace is 1 under today after a birdie at No. 3.
3:42PM: And back and forth we go. Day started with a two-shot lead, then led by three, then by two, and now three again after a bogey by Spieth at No. 4. Spieth found a bunker off the tee and couldn't save par. Now 13-of-15 scrambling this week.
Jordan makes first bogey 37 holes. Drops three behind Day.— Rex Hoggard (@RexHoggardGC) August 16, 2015
3:38PM: Pars are overrated anyway:
Remember that quad start for Dustin Johnson? Well, he’s played four more holes since and hasn’t made a par. pic.twitter.com/wxZdQtFgcf— Golf Central (@GolfCentral) August 16, 2015
3:32PM: We mentioned Billy Horschel and Justin Thomas' neon green pants earlier (12:28PM), but Horschel has upped the ante.
3:27PM: Jordan Spieth cuts the margin to two shots with a birdie of his own at No. 3. Used the contouring right of the green to bounce his ball within 10 feet of the flag. Day at 16 under. Spieth at 14 under.
3:23PM: Dustin Johnson opened Sunday 4 over through one hole, when he needed five swings to find the green from over the back.
3:15PM: Day takes a three-shot lead over Spieth with a birdie at the par-5 second. Spieth's birdie try just slid by on the left edge.
3:10PM: Good look at what may or may not be in store for Jordan Spieth and Jason Day this afternoon:
Seems worth a refresher of the world No. 1 scenarios. pic.twitter.com/CJXRoJHSDZ— Rex Hoggard (@RexHoggardGC) August 16, 2015
Jason Day is due. No player in the modern era has had the 54-hole lead or co-lead in three straight majors and not won any of them.— Golf Central (@GolfCentral) August 16, 2015
3:02PM: In case you missed it, here's the full recap of Bubba Watson's debate with a rules official over the classification of ants as a "burrowing animal." The transcript is rich.
2:57PM: A pair of pars for Day and Spieth on the opening hole. Day continues to lead by two.
2:53PM: Day and Spieth both hit the green on hole No. 1. Spieth a bit closer, around 20 feet.
2:50PM: As Spieth vies for his third major of the season, at age 22:
Jack became youngest in modern era to win 3 majors at 1963 PGA - he won it in Jordan Spieth's hometown of Dallas. #PGAChamp— Justin Ray (@JustinRayGC) August 16, 2015
2:45PM: Game time! Jason Day and Jordan Spieth have teed off in the final round of the PGA Championship.
2:36PM: So much for a Dustin Johnson comeback. Myriad bunker problems on the first hole led to a quadruple bogey-8 at the par-4 first. At least the disaster occurred early on Sunday this time.
2:30PM: And then there is Phil Mickelson doing this:
Classic Phil Mickelson. http://t.co/UiQjGRD4QB— The European Tour (@EuropeanTour) August 16, 2015
2:27PM: Back on Planet Bubba, this is happening:
2:15PM: As the final groups set out at Whistling Straits, a reminder that winds are expected to be steady at 10-15 mph, with gusts up to 25 mph. Temperatures are in the low 90's.
2:05PM: This has to be the last player Jason Day wanted to have to stare down on Sunday.
1:57PM: Brian Gaffney shot 1-under 71 in the final round to finish at 6 over par. He was the lone club pro to make the cut and managed to finish ahead of a few weekend pros, including last week's Barracuda champion, J.J. Henry.
1:48PM: It's a par-par start for McIlroy. He remains at 6 under par.
1:45PM: T-minus one hour and counting until the final pairing of Jason Day and Jordan Spieth conclude the major season.
1:41PM: Steve Stricker won't win this week, but he's given the locals something to cheer about early Sunday. He's 5 under on the day, 7 under for the event. He's currently T-14, with the top 15 earning an invite to next year's PGA at Baltusrol.
1:33PM: Rickie Fowler finding birdies on Sunday at Whistling Straits. Three of them on the scorecard through his first eight holes:
1:22PM: Because the Tiger Woods-Jordan Spieth comparisons never get old.
1:16PM: The struggle is real.
1:14PM: A world without Photoshop is not a world in which I wish to live. And if you don't know what this image is referring to, please see our live blog entry from 12:38 p.m.
1:12PM: World No. 1 Rory McIlroy (wonder if we'll still be calling him that tomorrow - here's looking at you, Jordan) is next up:
1:10PM: Bubba gives one back at the 7th, but that eadle at No. 6 was so good, let's take another look:
12:59PM: That's a 2 for Bubba at the par-4 sixth hole. He's now 4 under at the PGA.
12:50PM: Bubba Watson just drove the par-4 sixth and has a short-range eagle putt.
12:48PM: Good news! Less than two hours until this dynamic duo tees off for their final romp around Whistling Straits.
12:45PM: After all that burrowing animal hubbub, Bubba made birdie at the par-5 fifth and is 2 under for the championship.
12:38PM: Animal instincts. Bubba Watson going back and forth with a rules official about getting relief from an ant hole on the par-5 fifth hole. The ruling was that Watson would not receive relief, which didn't please Bubba too much. "If someone were allergic to ants and their ball landed there, you could care less," Watson said to the official. Perhaps he's a little more peeved than he might otherwise be, because he went bogey-bogey to begin his final round.
12:28PM: Is neon green the new black? Justin Thomas today, Billy Horschel yesterday. Who's next?
12:20PM: The 2010 PGA champion at Whistling Straits, Martin Kaymer has arrived. In 2010, he began the final round four shots back. Today, he will begin his final round four shots back.
12:07PM: Low scores are out there on Sunday. Take, for example, Ryan Moore, who's 6 under on the day:
12:06PM: Here's a look at the hole locations for the final round:
The wind is expected to pick up in the afternoon, just as the leaders tee off. Here's final-round hole locations. pic.twitter.com/WuN8wakaiq— Golf Central (@GolfCentral) August 16, 2015
12:00PM: Who do you think will win the 97th PGA Championship? Our GolfChannel.com writers made their picks:
11:50AM: Happy PGA Championship Sunday! When play ended Saturday, here's what the final leaderboad looked like. Jason Day and Jordan Spieth tee off in the final pairing at 2:45 p.m. ET.