The 108th PGA Championship is heating up at Aronimink, and the leaderboard is packed with star power. Scottie Scheffler and Rory McIlroy are exactly where oddsmakers expected them to be—right in the thick of contention. But after two grueling rounds, it's not the usual suspects holding the top spot.

Maverick McNealy and Alex Smalley share the 36-hole lead, but don't let that fool you. Aronimink's tricky pin placements and unpredictable weather have made scoring tougher than any PGA Championship since 2008. That's a recipe that favors the world's elite, and oddsmakers are betting on the big names to rise up the leaderboard this weekend.

Scheffler's odds have barely budged from where they started—a rarity that tells you how much confidence the sportsbooks have in him. Jon Rahm, Cameron Young, and Ludvig Åberg are all lurking within striking distance, and each brings a compelling case for a Wanamaker Trophy run.

Åberg, in particular, is worth a second look. The 24-year-old Swede caught fire on the back nine Friday and now sits inside the top 10. He's been playing at an elite level for weeks, and at +1175, he offers serious value for anyone chasing their first major champion pick. (Fair warning: that recommendation comes after a rough Thursday miss, so proceed with caution.)

McNealy (+650) and Smalley (+770) broke up what was a seven-player logjam after Thursday's opening round, but Friday's results haven't made this any easier to handicap. The good news? Focusing on Saturday's third round means we can worry less about closing-time pressure. Sure, the nerves will be there—but nothing compared to what Sunday's back nine will bring.

Stay tuned as the PGA Championship at Aronimink Golf Club in Newtown Square, Pa., continues to deliver drama worthy of a major.