John Koskinen
DOB
--
Started
2006
Birthplace
College
Career Wins
0
Second
0
Third
0
To Par
31
Top 5
0
Top 10
0
Top 25
0
2 Majors Played
| Major | Position | R1 | R2 | R3 | R4 | Total | To Par | Notes | Made Cut | Cut | Field |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
US Open - 2007
Oakmont Country Club |
MC-8 | 78 | 80 | 0 | 0 | 158 | 18 | 63 | 150 | 156 | |
|
US Open - 2006
Winged Foot Golf Club |
MC-4 | 79 | 74 | 0 | 0 | 153 | 13 | 63 | 149 | 156 |