Justin Thomas eagled the par-five 18th hole to grab a share of the lead at the halfway mark of the Tour Championship in Atlanta on Friday.
Playing the difficult East Lake Golf Club, Thomas joined Webb Simpson (67) and Paul Casey (67) atop the leaderboard at seven under through the first two rounds.
Thomas, who is chasing his sixth win of the season, shot a four-under 66 in round two.
The US PGA Championship winner is projected to claim the FedEx Cup with his current standing this week.
Simpson had a three-shot lead entering the 13th hole, but he hit his tee shot well left and then struggled to get back to the fairway.
The American finally finished with a double-bogey six. He ultimately finished his round with five consecutive pars.
Casey started his second round with four birdies in his first 10 holes. Like Simpson, he stalled on the back nine but wound up in great shape heading into the weekend.
Patrick Reed (65), Justin Rose (66), Gary Woodland (67) and Jon Rahm (67) finished round two one shot back at six under.
Rahm still has the opportunity to win both the FedEx Cup and the European Tour's Race to Dubai.
Dustin Johnson (69) and current points leader Jordan Spieth (70) are tied for 15th with first-round leader Kyle Stanley (73) at three under.
In the FedEx Cup top five entering the season-ending event, Marc Leishman carded another 71 and is tied for 24th.
Rickie Fowler's struggles continued, the American shooting a 74 to slip further back to seven over – leaving him 29th in the 30-man field.
|Smith brings up double hundred as England toil|
|Marsh posts maiden Test century as Australia take lead|
|Pique wants to face Guardiola, City in Champions League final|
|Westbrook´s triple-double powers Thunder past 76ers|
|Smith shines as Australia pass 300 in Perth|
|Tevez nearing Boca Juniors return|
|Rangers acquire Moore from Giants|
|Ronaldo? I was better, says Gremio coach Renato|
|Pique: I understood why Neymar left Barca for PSG|
|Celtics´ Hayward open to returning this season|
|Klopp: We´re all fighting for second place|
|Every player has a price – Mourinho hints at January exits|
|Good question! Guardiola ducks Sanchez link and lauds Walker|
|Six-try Ulster see off Harlequins|
|Guardiola addresses Mourinho´s tactical foul claims|
|Call the doctor! Conte protests no malice in David Luiz absence|
|Joy for Newcastle on a historic night for referee Neville|
|Sheffield Wednesday 0 Wolves 1: Brilliant Neves fires leaders seven clear|
|Premier League title City´s to lose, but Sterling wary of United charge|
|Barcelona´s Deulofeu a Clasico doubt after training injury|
|Bills QB Taylor to start v Dolphins|
|O´Mahony and Furlong sign new IRFU contracts|
|Salah ´is a player I rate a lot´, says Zidane|
|Allardyce lauds ´invaluable´ Rooney|
|Ramos fit for Club World Cup final|
|Lille sack Bielsa to end failed experiment|
|Manchester United job like Real Madrid, says Mourinho|
|Fernandinho is much better than I was, Guardiola claims|
|That Harry Kane team? – I´m over Guardiola dig, says Pochettino|
|Tuilagi and Toomua return to Leicester line-up|
|Mourinho open to January moves as Griezmann rumours swirl|
|Berizzo set for Sevilla return after cancer surgery|
|Malinga left out of Sri Lanka´s T20 squad|
|Manchester City will not go unbeaten in Premier League - Guardiola|
|Man City are the best – Pochettino braced for Spurs´ toughest test|
|Kristaps Porzingis injury update: Knicks big man says knee ´shouldn´t´ be bad|
|Conte hopeful over David Luiz´s ´serious´ knee injury|
|Neymar not an injury risk after Brazil trip - Emery|
|Bailly to miss three months due to ankle surgery|
|Klopp defends Liverpool rotation policy|
|Arsenal fan Prince Harry´s wedding day to clash with FA Cup final|
|He´s one of the best – Simeone showers Oblak with praise|
|Juventus won´t sell in-demand Pjaca, agent claims|
|Bolasie in line for Everton return after long-term injury|
|Bedene to switch back from Britain to Slovenia|
|Maradona told Real Madrid to sign Mbappe|
|Samuels out of NZ tour, Narine to miss T20s|
|Sydney FC 3 Melbourne City 1: Champions come from behind to go eight points clear|
|Red-hot Salah wins Player of the Month|
|Heynckes unaware of reported Sanches loan termination|
|Maradona: I´d have won more Ballons d´Or than Ronaldo and Messi|
|Khawaja pleased to restore parity in Perth|
|Bairstow enjoys playful celebration of crucial century|
|The Ashes Round-up: Smith leading by example again|
|Wenger confirms Wilshere contract talks imminent|
|Sensational Smith leads Australia fightback|
|We´ve never been approached by Man United – Wenger rejects Ozil reports|
|Joshua ´absolutely´ capable of unification, says Klitschko|
|Mathews fit for India-Sri Lanka series decider|
|Lewandowski demands focus ahead of Christmas|
|Fury not rushing back to take on Joshua|
|Klopp right to rotate at Liverpool – Neville|
|Overton strikes twice for England in Perth|
|LeBron´s 59th triple-double leads Cavaliers past Lakers|
|Jets offensive coordinator admits surrender in blowout loss to Broncos|
|Osweiler helps Broncos past Colts|
|England collapse to be all out for 403 in Perth|
|Donnarumma plays down Milan exit rumours|
|Barkley could leave in January – Allardyce|
|Siemian suffers shoulder injury, Osweiler in for Broncos|