Strokes Gained: Bombs Away for Dustin Johnson

Dustin Johnson began the third round holding a one-stroke lead on the strength of pure ball striking and power.
Dustin Johnson began the third round holding a one-stroke lead on the strength of pure ball striking and power.  (USGA/JD Cuban)

Dustin Johnson fired rounds of 67 and 69 to take the lead after two rounds of the U.S. Open at Oakmont Country Club.
Johnson was ranked No. 1 in strokes gained driving, gaining 2.2 strokes per round with his tee shots on par-4 and par-5 holes. He also gained 2.1 strokes per round with his ninth-ranked approach shots. He gained additional strokes with his short game and putting.
The importance of approach shots is shown by the top 15 players after two rounds. This group gained 36 percent of their strokes with approach shots, 25 percent with putting, 23 percent with short-game shots and 16 percent with driving.

U.S. Open Through Two Rounds:

Strokes gained per round (ranks in parentheses)
PlayerTotalDriveApproachShortPutt
Dustin Johnson 5.9 (1)   2.2 (1)   2.1 (9)   1.0 (27)   0.6 (49)  
Andrew Landry 5.4 (2)   0.8 (33)   1.5 (18)   1.4 (8)   1.7 (16)  
Sergio Garcia 4.9 (T3)   1.4 (11)  -0.7 (104)   2.1 (2)   2.1 (8)  
Scott Piercy 4.9 (T3)   1.9 (5)   2.8 (4)   1.0 (27)  -0.8 (104)  
Gregory Bourdy 4.9 (T3)   0.6 (44)   3.4 (2)  -0.3 (91)   1.2 (30)  
Shane Lowry 4.9 (T3)   0.6 (44)   0.7 (42)   2.1 (2)   1.5 (24)  
Jim Furyk 4.4 (T7)  -1.3 (137)   3.5 (1)   1.3 (10)   0.9 (41)  
Lee Westwood 4.4 (T7)   1.1 (21)   0.9 (32)   0.7 (43)   1.7 (16)  
Daniel Summerhays 4.4 (T7)  -0.3 (91)   2.3 (7)   1.3 (10)   1.1 (35)  
Andy Sullivan 4.4 (T7)   0.7 (40)   1.1 (29)   0.7 (43)   1.9 (11)  
Zach Johnson 3.9 (T11)   0.4 (57)  -0.2 (81)   1.0 (27)   2.7 (2)  
Adam Scott 3.9 (T11)   2.2 (1)   1.7 (14)   0.2 (71)  -0.2 (76)  
Lee Slattery 3.9 (T11)   0.8 (33)  -0.7 (104)   1.7 (5)   2.1 (8)  
Louis Oosthuizen 3.9 (T11)   0.1 (72)   3.0 (3)   1.2 (14)  -0.4 (87)  
Marc Leishman 3.9 (T11)   0.4 (57)   2.2 (8)   0.1 (75)   1.2 (30)  
      
 Strokes gained per round  
 TotalDriveApprShortPutt
Top 15 average4.90.81.81.11.2

Mark Broadie is a Columbia Business School professor who developed the strokes-gained statistic to compare each player’s performance against the rest of the field.