The 2018 US Open field of 156 players is made up of 74 players who get into the tournament through sectional qualifying, which finished on June 4. As part of the sectional qualifying process, the USGA also identifies US Open alternates from each of the 12 sites.
The USGA will pull from the US Open alternate list to fill the field of 156 players, with the governing body allocating exempted spots for players who may get into the top 60 in the Official World Golf Ranking as of June 10, the week of the championship. The USGA left six spots available for that possibility. However, only two players got into the top 60 (Byeong-hun An, Emiliano Grillo), meaning there were four spots for alternates.
Then there are all the players that could potentially withdraw the week of the US Open with injury or other problems.
The USGA doesn't produce a US Open alternate list with a specific priority order in mind. They keep that a secret and contact alternates at their discretion as spots become available. However, here's the full list of 2018 US Open alternates from the sectional sites.
So far, Ryan Evans, Rikuya Hoshino, Scott Piercy and Ted Potter, Jr. have gotten into the field.
2018 US Open alternates
- Rikuya Hoshino (JPN, 1) -- IN, OWGR TOP 60 FILL IN
- Ryan Evans (ENG, 1) -- IN, OWGR TOP 60 FILL IN
- Nathan Stamey (FL, 1)
- Bryce Hendrix (a) (GA, 1)
- Chase Wright (MD, 1)
- Mark Hoffman (NJ, 1)
- Ted Potter Jr (OH, 1) -- IN, OWGR TOP 60 FILL IN
- Corey Conners (COL, 1)
- Scott Piercy (TN, 1) -- IN, OWGR TOP 60 FILL IN
- Blaine Hale Jr (TX, 1)
- Edward Olson (CA, 1)
- Max Greyserman (OR, 1)
- Hideto Tanihara (JPN, 2)
- Aaron Rai (ENG, 2)
- Cristian DiMarco (FL, 2)
- Gene Sauers (GA, 2)
- Billy Hurley III (MD, 2)
- Ryan Davis (a) (NJ, 2)
- Kevin Tway (OH, 2)
- David Lutterus (COL, 2)
- Seamus Power (TN, 2)
- Dillon Rust (TX, 2)
- Tim Widing (a) (CA, 2)
- Brett Lederer (OR, 2)
