Paul Casey could do no wrong as he shot a career-low eight-under 62 to take the lead by four shots after the third round of the Travelers Championship.
The Englishman moved into 16 under for the tournament, surging clear of the pack, with Russell Henley back at 12 under in outright second.
Casey showed just how in form he was with an eagle on the par-four 15th.
He hit an amazing 18 out of 18 greens on Saturday, just a couple of days after he was not pleased at all with his swing.
"We worked on it hard yesterday afternoon after the round," Casey told CBS Sports.
"Pretty simple, posture wasn't good enough and I was standing too far from the golf ball... and literally he [swing coach Peter Kostis] had me on the range, had me feeling like I was going to shank everything yesterday and I played comfortable."
Henley is in second after a three-under 67.
World number nine Jason Day shot one of the best rounds of the day with a four-under 66 and the Australian sits in a tie for sixth at 10 under.
"It's been a pretty good week with the short game," Day said after finishing his round with a mere 26 putts.
"Out of the bunkers, there's really good sand here, but also just around the greens in general, just been chipping really nice."
Rory McIlroy had a lot of trouble on the greens as he finished with a three-putt to end his day with a one-under 69. He is eight under for the tournament.
World number two Justin Thomas shot an even-par 70 and sits at five under.
James Hahn (67) provided one of the highlights of the round with a hole-in-one at the 11th.
23. September 2018
|Korea change sees Bertens take title in Seoul|
|I love Bilic, but I let him down – Arnautovic|
|He will never fight me! Fury hits out at ´ponderous´ Joshua|
|Azpilicueta convinced Hazard can be ´the best´|
|Wigglesworth´s career in Opta numbers as he breaks Premiership record|
|Ronaldo has nothing to prove, says Allegri|
|Federer shines as Europe hold narrow lead at Laver Cup|
|Astros, Yankees and Indians record dramatic wins|
|Pliskova too strong for Osaka in Tokyo final|
|Kyle Busch comes from behind to win again in Virginia|
|Dybala can play as a striker – Allegri|
|Pochettino never doubts ´special´ Kane|
|NASCAR results at Richmond: Kyle Busch comes from behind to win again in Virginia|
|McIlroy just worried about himself at Tour Championship|
|MLS Review: Atlanta stay clear of Red Bulls|
|Rose reminds everyone Woods has been here before|
|Cronk in doubt for Grand Final due to ´severe´ shoulder injury|
|Timberwolves sign Towns to extension|
|Hearn wants Wilder for Joshua, not ´un-entertaining´ Fury|
|Woods pleased with putting consistency|
|Ballon d´Or not a focus for Asensio|
|Man City star Mendy revels in Joshua triumph|
|Braves clinch first NL East title since 2013|
|I want Wilder, says Joshua|
|Inter must live on the edge to win, says jubilant Spalletti|
|Woods leads by three at Tour Championship|
|Bordeaux end Clermont´s perfect start, Zebo at double in Racing win|
|Lopetegui not worried about Courtois footwork|
|Joshua finds emphatic answer to Povetkin challenge|
22. September 2018
|BREAKING NEWS: Brutal Joshua knocks out Povetkin in seventh round|
|Real Madrid can´t win 5-0 every week - Varane|
|Al Ahly 4 Horoya 0 (4-0 agg): Egyptian giants reach CAF Champions League semi-finals|
|Kings upset Warriors, Leinster batter Edinburgh|
|Son committed to Tottenham amid Bayern links|
|Simeone hails Atleti´s best LaLiga display of the season|
|Kovac: Bayern ´dominated´ Schalke in 2-0 win|
|Pochettino unimpressed with Tottenham´s tense finish|
|Campbell gains revenge as Price is halted by injury|
|Tottenham fatigue rumours are a myth, claims Rose|
|Widnes defiant after Super League relegation, Saints outclass Wolves|
|NFL must go back to college to eradicate the tie|
|Real Madrid 1 Espanyol 0: Asensio downs old club to earn narrow win|
|Sampdoria 0 Inter 1: Brozovic wins it late after VAR takes centre stage|
|Rudy takes blame for James goal in Bayern win|
|Tiger charges into four-shot lead|
|Players have given their lives to Burnley - Dyche|
|QPR 0 Norwich City 1: Pukki hits winner as hot streak continues|
|Nuno proud of Wolves character in Man United draw|
|Playing for England my dream, says in-form Maddison|
|Brighton and Hove Albion 1 Tottenham 2: Kane on target as Spurs issue firm response|
|Schalke 0 Bayern Munich 2: James and Lewandowski deliver another win|
|Getafe 0 Atletico Madrid 2: Lemar inspires routine win|
|Championship Review: Monk ruins Leeds´ unbeaten streak, McGinn screamer fails to save Villa|
|Bale benched for Real Madrid-Espanyol|
|Biggar fails to rescue Saints at Bath, Bristol and Wasps win|
|Zaha affected by back injury – Hodgson|
|Mourinho slams Manchester United attitude after Wolves stalemate|
|Herbert holds Portugal Masters advantage|
|Warnock blasts ´elementary´ Cardiff mistakes|
|Shaqiri substitution not easy for Klopp|
|Guardiola hopes for even more to come from Aguero|
|Fellaini accepts United closing gap to Premier League summit will be difficult|
|Klizan to face Thiem in St. Petersburg final, Bachinger shocks Nishikori|
|Klopp: Van Dijk injury not serious|
|Mourinho annoyed by Man Utd´s blunt attack in Wolves draw|
|Valverde not ready to consider Barca contract extension|
|Gattuso wary of wounded Atalanta as Higuain receives further advice|
|Burnley 4 Bournemouth 0: Rampant Clarets claim first Premier League win of the season|
|Crystal Palace 0 Newcastle United 0: Sakho misses sitter as Magpies remain winless|
|Cardiff City 0 Manchester City 5: Aguero celebrates new deal with goal in 300th game|