Presidents Cup 2026: Koivun Debuts, Pairings Set at Medinah

• Jackson Koivun, 21, is the debutant drawing the most attention as the United States' youngest player in the field at Medinah.
• Matches run September 24-27 at Medinah Country Club's Course No. 3, with practice rounds September 22-23; Brandt Snedeker captains the United States, Geoff Ogilvy the International team.
• Six rookies across both rosters, three per side, mean at least some pairings will be built without an established partnership to lean on.
• Sportsbooks list the United States as the heavy favorite, a betting line that sits in tension with Medinah's own history of hosting a US collapse, though that's a contrast worth naming rather than a real prediction.

The rookie everyone's talking about

Jackson Koivun turns 21 this year and arrives at Medinah as one of three US debutants, alongside Chris Gotterup and Jacob Bridgeman, but he's the name generating the most attention heading into the week. Part of that is simply age: he's the youngest player on either 12-man roster, which puts him in a different category from the other rookies even before a single match is played. Part of it is that a captain's pick or a late-season roster addition this young inevitably invites the question of whether he's ready for the format's specific pressure, foursomes and four-ball require reading a partner's game in real time, not just playing well individually.

Snedeker hasn't said who Koivun will play alongside, and won't until the week itself, but the roster construction gives a hint. The US captain leaned on proven Presidents Cup and major-championship experience with his other picks, Xander Schauffele, Justin Thomas, and Patrick Cantlay among them, which reads like an attempt to pair each of the team's three rookies with a partner who's been through this format before rather than leaving them to figure it out together.

How a captain handles a 21-year-old in his first team event says something about the pick itself. Bringing in a player this young usually means betting on upside over experience, and that bet gets tested immediately in a format built around reading a partner's game rather than just playing your own. A strong debut reframes the pick as foresight; a rough one invites the usual second-guessing about whether the roster spot should have gone to a steadier veteran instead.

Pairing speculation across both rosters

The International side shows a mirrored pattern. Ogilvy's three debutants, Nick Taylor, Nico Echavarria, and Ryo Hisatsune, join a roster anchored by Hideki Matsuyama, Adam Scott, and Ryan Fox, all multiple-time Presidents Cup veterans with the kind of experience captains typically use to steady a first-timer. Neither captain benefits from a deep bench of proven partnerships this year; six new faces across two 12-man teams is a meaningful chunk of the field playing its first competitive foursomes or four-ball round under this exact kind of pressure.

That's the real variable heading into the week, more than the talent level on either roster. Foursomes in particular rewards pairs who've logged rounds together before, whether at a prior Presidents Cup, a Ryder Cup, or simply a lot of shared tournament weeks. With so many new pairings likely on both sides, the chemistry question is genuinely open in a way it usually isn't by this point in the buildup, and neither captain has tipped his hand on how he plans to solve it.

A betting favorite at a venue with a history of upsets

The United States enters as a significant favorite with most sportsbooks, which lines up with the roster on paper and with a Presidents Cup history that has favored the Americans for two decades running. What makes the number worth mentioning at all is where the matches are being played: Medinah hosted the 2012 Ryder Cup, where the United States built a four-point lead into Sunday singles and lost it anyway, a collapse remembered ever since as the Miracle at Medinah.

That history doesn't make a 2026 upset more likely on its own, a single result from a different competition 14 years earlier says very little about how this particular field will play this particular week, and I'd be skeptical of anyone treating the coincidence as more than a betting-column footnote. It's worth naming as context precisely because it's the kind of detail that will get repeated all week regardless of whether it holds any predictive weight.

What's still unsettled

The rosters are locked and the venue's history is well worn territory by now; what isn't settled is how either captain actually deploys the players he has. Pairings won't be announced until matches begin, and the exact day-by-day session format is still being finalized. Between now and September 24, Koivun's readiness and the six rookies' pairings are the two threads most likely to actually shape how the week plays out, more than the betting line or Medinah's own history will.

Full details on the rosters and the venue's match format are in our Presidents Cup 2026 preview and the roster announcement.

Photo by Dan Perry, Wikimedia Commons, licensed under CC BY 2.0.