| Platinum 3문제 expand_more |
| 4117 | Tree Boxes | USACO 2019 US Open Platinum | 0 | 0 | |
| 4118 | Compound Escape | USACO 2019 US Open Platinum | 0 | 0 | |
| 4119 | Valleys | USACO 2019 US Open Platinum | 0 | 0 | |
| Gold 3문제 expand_more |
| 4120 | Snakes | USACO 2019 US Open Gold | 0 | 0 | |
 4121 | I Would Walk 500 Miles | USACO 2019 US Open Gold | 1 | 1 | 100.00% |
| 4122 | Balancing Inversions | USACO 2019 US Open Gold | 0 | 0 | |
| Silver 3문제 expand_more |
| 4123 | Left Out | USACO 2019 US Open Silver | 0 | 0 | |
| 4124 | Cow Steeplechase II | USACO 2019 US Open Silver | 0 | 0 | |
| 4125 | Fence Planning | USACO 2019 US Open Silver | 0 | 0 | |
| Bronze 3문제 expand_more |
| 3542 | 소방훈련 (Bucket Brigade) | USACO 2019 US Open Bronze | 4 | 11 | 36.36% |
| 3543 | 우유 공장 (Milk Factory) | USACO 2019 US Open Bronze | 27 | 68 | 39.71% |
| 3544 | Cow Evolution | USACO 2019 US Open Bronze | 0 | 0 | |
