The 2018 WGC-Bridgestone Invitational was a professional golf tournament held August 2–5 on the South Course of Firestone Country Club in Akron, Ohio. It was the 20th WGC-Bridgestone Invitational tournament, and the third of the World Golf Championships events in 2018.

The South Course was designed by Bert Way and redesigned by Robert Trent Jones in 1960.

Hole	Yards	Par		Hole	Yards	Par
1	399	4		10	410	4
2	526	5		11	418	4
3	442	4		12	180	3
4	471	4		13	471	4
5	200	3		14	467	4
6	469	4		15	221	3
7	219	3		16	667	5
8	482	4		17	400	4
9	494	4		18	464	4
Out	3,702	35		In	3,698	35
Source:		Total			7,400	70

The field consisted of players drawn primarily from the Official World Golf Ranking and the winners of the worldwide tournaments with the strongest fields.

1. Playing members of the 2017 United States and International Presidents Cup teams.

Daniel Berger (2,3), Kevin Chappell (2,3), Jason Day (2,3,4), Rickie Fowler (2,3), Branden Grace (2,3,4), Emiliano Grillo, Charley Hoffman (2,3), Dustin Johnson (2,3,4), Kim Si-woo, Kevin Kisner (2,3), Brooks Koepka (2,3,4), Matt Kuchar (2,3), Anirban Lahiri, Marc Leishman (2,3,4), Hideki Matsuyama (2,3,4), Phil Mickelson (2,3,4), Louis Oosthuizen (2,3), Patrick Reed (2,3,4), Charl Schwartzel (2,3), Adam Scott, Jordan Spieth (2,3), Justin Thomas (2,3,4), Jhonattan Vegas

Adam Hadwin did not play.

2. The top 50 players from the Official World Golf Ranking as of July 23, 2018.

Kiradech Aphibarnrat (3), Rafa Cabrera-Bello (3), Patrick Cantlay (3,4), Paul Casey (3,4), Bryson DeChambeau (3,4), Tony Finau (3), Ross Fisher (3), Matt Fitzpatrick (3,4), Tommy Fleetwood (3,4), Sergio García (3,4), Brian Harman (3), Tyrrell Hatton (3,4), Zach Johnson, Satoshi Kodaira (3,4), Li Haotong (3,4), Luke List (3), Rory McIlroy (3,4), Francesco Molinari (3,4), Kevin Na (3,4), Alex Norén (3,4), Pat Perez (3,4), Ian Poulter (3,4), Jon Rahm (3,4), Xander Schauffele (3,4), Webb Simpson (3,4), Cameron Smith (3,5), Kyle Stanley (3), Henrik Stenson (3,4), Bubba Watson (3,4), Gary Woodland (3,4), Tiger Woods (3)

Justin Rose (3,4,5) did not play.

3. The top 50 players from the Official World Golf Ranking as of July 30, 2018.

An Byeong-hun

4. Tournament winners, whose victories are considered official, of tournaments from the Federation Tours since the prior season's Bridgestone Invitational with an Official World Golf Ranking Strength of Field Rating of 115 points or more.

Alexander Björk, Austin Cook, Paul Dunne, Patton Kizzire, Russell Knox, Andrew Landry, Thorbjørn Olesen, Wade Ormsby, Ted Potter Jr., Shubhankar Sharma, Brendan Steele, Brandon Stone, Aaron Wise

5. The winner of selected tournaments from each of the following tours

• Asian Tour: Indonesian Masters (2017) – Justin Rose, also qualified under categories 2, 3 and 4
• PGA Tour of Australasia: Australian PGA Championship (2017) – Cameron Smith, also qualified under categories 2 and 3
• Japan Golf Tour: Bridgestone Open (2017) – Ryuko Tokimatsu
• Japan Golf Tour: Japan Golf Tour Championship (2018) – Kodai Ichihara
• Sunshine Tour: Dimension Data Pro-Am – Jaco Ahlers

Thursday, August 2, 2018

Ian Poulter shot an 8-under-par 62 to lead by one stroke over Rickie Fowler and Kyle Stanley. Defending champion Hideki Matsuyama was 5 strokes back at −3. Tiger Woods, eight-time winner of the event, was 4 strokes back at −4. His last PGA Tour win was at the 2013 event. The scoring average of 68.37 was the lowest opening round of a PGA Tour event this season.

Place	Player	Score	To par
1	Ian Poulter	62	−8
T2	Rickie Fowler	63	−7
	Kyle Stanley
T4	Patrick Cantlay	64	−6
	Kim Si-woo
	Jon Rahm
T7	Jason Day	65	−5
	Anirban Lahiri
	Marc Leishman
	Luke List
	Rory McIlroy
	Kevin Na
	Justin Thomas

Friday, August 3, 2018

Place	Player	Score	To par
T1	Tommy Fleetwood	66-63=129	−11
	Ian Poulter	62-67=129
	Justin Thomas	65-64=129
T4	Jason Day	65-66=131	−9
	Kyle Stanley	63-68=131
T6	Kim Si-woo	64-68=132	−8
	Rory McIlroy	65-67=132
T8	Li Haotong	66-67=133	−7
	Luke List	65-68=133
T10	Tony Finau	68-66=134	−6
	Marc Leishman	65-69=134
	Louis Oosthuizen	68-66=134
	Jon Rahm	64-70=134
	Webb Simpson	69-65=134
	Tiger Woods	66-68=134

Saturday, August 4, 2018

Place	Player	Score	To par
1	Justin Thomas	65-64-67=196	−14
T2	Rory McIlroy	65-67-67=199	−11
	Ian Poulter	62-67-70=199
4	Jason Day	65-66-69=200	−10
T5	Marc Leishman	65-69-67=201	−9
	Kyle Stanley	63-68-70=201
T7	Rickie Fowler	63-74-65=202	−8
	Jon Rahm	64-70-68=202
T9	Tommy Fleetwood	66-63-74=203	−7
	Louis Oosthuizen	68-66-69=203

Sunday, August 5, 2018

Place	Player	Score	To par	Prize money (US$)
1	Justin Thomas	65-64-67-69=265	−15	1,700,000
2	Kyle Stanley	63-68-70-68=269	−11	1,072,000
T3	Dustin Johnson	69-71-66-64=270	−10	510,000
	Thorbjørn Olesen	71-67-68-64=270
5	Brooks Koepka	66-70-68-67=271	−9	357,000
T6	Patrick Cantlay	64-72-68-68=272	−8	241,375
	Anirban Lahiri	65-70-69-68=272
	Rory McIlroy	65-67-67-73=272
	Aaron Wise	67-71-67-67=272
T10	Jason Day	65-66-69-73=273	−7	160,875
	Tony Finau	68-66-71-68=273
	Kim Si-woo	64-68-72-69=273
	Ian Poulter	62-67-70-74=273

Final round

Hole	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
Par	4	5	4	4	3	4	3	4	4	4	4	3	4	4	3	5	4	4
Thomas	−14	−15	−15	−15	−15	−14	−14	−14	−14	−14	−14	−14	−15	−15	−15	−15	−15	−15
Stanley	−9	−8	−8	−8	−9	−9	−9	−10	−10	−11	−11	−12	−11	−10	−10	−11	−11	−11
Johnson	−5	−6	−7	−8	−8	−9	−9	−10	−10	−11	−11	−11	−11	−11	−11	−11	−11	−10
Olesen	−4	−5	−5	−4	−4	−4	−5	−5	−6	−6	−7	−7	−7	−8	−9	−9	−10	−10
Koepka	−6	−7	−7	−5	−5	−6	−6	−7	−7	−6	−7	−7	−8	−9	−8	−9	−9	−9

Cumulative tournament scores, relative to par

Birdie

Bogey

Double bogey

• Official website
• Coverage on European Tour's official site
• Firestone Country Club site