As we near the final day of the 2023 PGA Championship at Oak Hill, five key players dominate the landscape. Each has displayed a unique blend of determination, skill, and resilience to emerge as the favorites heading into Sunday's decisive round.

Brooks Koepka: Clutch Performer
Pre-tournament 20/1, Current +115
Current Score: -6 (72-66-66)

Koepka stands tall as the tournament's leader, demonstrating his poise and resilience under challenging conditions. Coming in at 20/1 odds and as the sixth favorite at the beginning, Koepka has surpassed expectations to lead the field at +115 entering Sunday's round. Three crucial birdies in the last seven holes of a rain-soaked Saturday have positioned him a mere shot ahead of his closest rivals, Viktor Hovland and Corey Conners.

Known as "Major Brooks," he is no stranger to seizing victory from the jaws of intense competition. His victories in the U.S. Open (2017-18) and PGA Championship (2018-19) speak volumes of his steely nerve and ability to deliver in high-pressure situations. In what is his second straight 54-hole lead in a major, Koepka now seeks to mirror his past heroics and emerge victorious.

Viktor Hovland: Consistent Challenger
Pre-tournament 28/1, Current +333
Current Score: -5 (68-67-70)

Norway's Viktor Hovland entered the tournament with 28/1 odds as the 11th favorite, but has played impressively to push himself into serious contention. With consistent play throughout the tournament, Hovland has put himself in a strong position to challenge Koepka on the final day.

Corey Conners: Steady Climber
Pre-tournament 80/1, Current +550
Current Score: -5 (67-68-70)

Canadian Corey Conners has emerged as a surprise contender in this Championship. Initially starting as the 31st favorite with odds of 80/1, Conners is now firmly in the hunt. His level-par 70 in the third round and a place at five-under-par give him an excellent chance to join Mike Weir as Canadians in golf’s most exclusive club.

With just three holes to play in a wet third round, Conners had looked set to take the solo lead before an unfortunate double bogey at the 16th hole saw him leapfrogged by Brooks Koepka. Yet, with only a single stroke separating him from the lead, Conners will aim to regroup and mount a decisive challenge on Sunday.

Scottie Scheffler: Early Favorite
Pre-tournament +750, Current +900
Current Score: -2 (67-68-73)

Scottie Scheffler, tied as the pre-tournament favorite with Jon Rahm, has fallen slightly behind in the last two rounds. He currently stands at +900, but with a strong start to the tournament, Scheffler remains a serious contender.

Bryson DeChambeau: Dark Horse
Pre-tournament 110/1, Current 12/1
Current Score: -3 (66-71-70)

Bryson DeChambeau has proven once again that he is a force to reckon with, especially in major championships. Beginning the tournament as the 40th favorite with odds of 110/1, he has steadily improved his position, standing now at +1200. His aggressive style and remarkable driving distance could potentially disrupt the leaderboard on the final day.

In conclusion, with Brooks Koepka, Viktor Hovland, Corey Conners, Scottie Scheffler, and Bryson DeChambeau entering the final day of the Championship as the top favorites, Sunday's showdown at Oak Hill promises a spectacular close to an already thrilling tournament.