Singles:
Winner: $3,700,000
Runner-Up: $1,825,000
Semifinalist: $920,000
Quarterfinalist: $470,000
Round of 16: $253,625
Round of 32: $144,000
Round of 64: $86,000
Round of 128: $50,000
http://www.usopen.org/en_US/news/articles/2017-07-18/2017_us_open_prize_money_to_top_50_million.html