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.
19. Januar 2018
|De Gea happy to delay Man Utd contract talks|
|Celtics guard Irving misses 76ers game with shoulder injury|
18. Januar 2018
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|CC Sabathia likes the Yankees being a ´hated team´ again|
|UCI president wants Team Sky to suspend Froome|
|Dortmund´s Durm suffers torn ankle ligaments|
|Chelsea send Nathan to Belenenses on loan|
|Chelsea in talks over deal for Roma full-back Emerson|
|Gravel for breakfast but no worms on Dyche´s menu|
|Harden to return for the Rockets against the Timberwolves|
|Dybala is no Messi - Laudrup thinks comparisons are unfair|
|Jones insists weakened England can challenge for Six Nations hat-trick|
|McIlroy feeling ´a little different´ but happy with injury return|
|Dortmund leave Aubameyang out amid Arsenal links|
|Federer requested night match to avoid Melbourne scorcher|
|Koulibaly would stay at Napoli ´forever´|
|Mentor De Villiers hopes Proteas proteges ´remember that old guy´|
|Shenzhen to host WTA Finals|
|Neymar´s PSG contract has no release clause, lawyer claims|
|Robben relaxed over Bayern contract talks as other clubs circle|
|Henderson returns to Liverpool training|
|Football´s biggest release clauses - Pique joins Messi, Ronaldo and LaLiga´s big boys|
|Australia call for Carey, Hazlewood out of Gabba ODI|
|Defending champion Fleetwood upstages McIlroy, Johnson|
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|Halep not feeling the pressure|
|Stafylidis seals Stoke switch|
|I was dying on court - Monfils questions decision to play in Melbourne heat|
|Birthday girl Kerber sets up Sharapova clash, misery for Muguruza|
|Federer marches on, Djokovic beats the heat but Wawrinka bows out|
|Worry about your own team - Dortmund slam Wenger´s Aubameyang pursuit|
|Fabulous Federer eases past Struff|
|Praet denies agreeing deal to join Juventus|
|No BBC for Real Madrid´s Leganes clash|
|Wawrinka discovers Tennys has game to go with the name|
|Heat hit historic low in defeat to Sixers|
|Stoke close to Stafylidis signing|
|Brisbane Roar 3 Perth Glory 2: Holman settles five-goal thriller|
|Gourvennec leaves Bordeaux after seventh defeat in eight games|
|Eight uncapped players make squad for England´s Six Nations opener|
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|Pique agrees new long-term Barcelona contract|
|Wenger rules out Ozil sale as talks continue over Wilshere deal|
|Halep eases past struggling Bouchard|
|Sanchez-Mkhitaryan deal close, says Wenger|
|Retiring veteran Benneteau dumps Goffin out|
|Meunier blasts ´disgraceful´ PSG fans after Neymar boos|
|Pique demands better at Camp Nou after Espanyol ´insults´|
|Djokovic outlasts Monfils in Melbourne heat|
|Wizards get in scuffle in blowout loss to Hornets|
|Schweinsteiger re-signs with Chicago Fire for 2018|
|Rockets´ Ariza, Green suspended|
|Sharapova happy with improvement|
|Muguruza stunned as upsets continue at Australian Open|
|Juve trying everything to sign Can, says Marotta|
|He´s scared of me – Ferrell reveals Federer fears|
|Konta crashes out in shock Aus Open defeat to lucky loser|
|Brady limited in practice due to hand injury|
|Sharapova overcomes Sevastova in Melbourne|
|Rooney convinced me to join Everton – Walcott|
|Simeone: Sevilla deserved their win|
|Conte calls for VAR improvements|
|Neymar not angered by PSG whistles - Silva|
|FA Cup Review: Wigan dump Bournemouth out, nine-man Chelsea scrape through|
|Banvit beat Bayreuth to stay top as Gaziantep end losing streak|
|England won´t block Jones from Lions role|
|Valverde rues Barca profligacy in Espanyol defeat|