This is what is posted on the U. S. Open website:
Prize Fund Based on full field of 256 players ~ $50,000 added!
1st place $40,000
2nd $15,000
3rd $10,000
4th $8,000
5-6 $6,000 each
7-8 $4,500 each
9-12 $3,000 each
13-16 $2,000 each
17-24 $1,500 each
25-32 $1,250 each
33-48 $1,000 each
49-64 $750 each
65-96 $500 each
Total Prize Fund $180,000