Patrick Cantlay and Xander Schauffele were in imperious form at the Zurich Classic of New Orleans on Thursday, shooting a 13-under 59 to lead after the opening day.

The reigning FedEx Cup and Olympic champions paired up to produce a tournament record, since the Zurich Classic shifted to a team format in 2017.

While the effort won't officially be added to the list of sub-60 rounds in the PGA Tour record books, the Presidents and Ryder Cup teammates were clearly comfortable in Thursday's best-ball format.

Thursday was the first of two four-ball sessions at TPC Louisiana this weekend, and the duo went seven under over the front nine, including an eagle from Cantlay on the par-five second hole.

Three birdies each from Cantlay and Schauffele on the back nine saw them close a scintillating opening round on 13-under for the day.

Three straight birdies to finish off the lowest round in tournament history.@Patrick_Cantlay and @XSchauffele shoot 59 in the opening round to take the lead @Zurich_Classic. pic.twitter.com/BY2RsAZyfQ
— PGA TOUR (@PGATOUR) April 21, 2022

As is the case with best-ball format, though, the sub-60 score has not translated into a commanding lead after the opening day, against what is a packed field.

Matthew NeSmith and Taylor Moore are a solitary stroke back after 18 holes, while three teams are locked at 11 under – Aaron Rai and David Lipsky, Tommy Gainey and Robert Garrigus, and the pairing of Doc Redman and Sam Ryder.

Sam Burns and Billy Horschel are a further stroke back at 10 under, along with the team of Bubba Watson and Harold Varner III.

Recent Masters champion Scottie Scheffler and partner Ryan Palmer shot a seven-under 64, but with 10 of the world's top 20 golfers in the field, Cantlay and Schauffele will not be short on competition heading into Friday's alternate format.

Cantlay and Schauffele are comfortable in the alternate format also, though, holding a 4-0 record from the 2019 Presidents Cup and 2021 Ryder Cup.

Going low in Nola pic.twitter.com/RPt21PpWc7
— PGA TOUR (@PGATOUR) April 21, 2022