Sean Maruyama of Encino, California, has competed with the AJGA for four seasons. The 17-year-old is No. 8 in the AJGA Rankings. A 2016 second-team Rolex Junior All-American, Maruyama earned his first national tournament title at the 2016 Western Junior Championship. The UCLA verbal commit has recorded eight top-10 finishes in his AJGA career.
| Rank | Event | R1 | R2 | R3 | R4 | Total |
| T34 | Thunderbird International Junior | 72 | 78 | 72 | 222 | |
| T7 | 2017 Junior Invitational at Sage Valley Golf Club | 72 | 70 | 69 | 211 | |
| T6 | CB&I / Simplify Boys Championship at Carlton Woods | 65 | 73 | 71 | 209 | |
| T17 | 2016 Polo Golf Junior Classic | 71 | 73 | 144 | ||
| T6 | The PING Invitational | 73 | 74 | 75 | 222 | |
| T44 | The Junior PLAYERS Championship presented by TaylorMade-adidas Golf | 81 | 69 | 75 | 225 | |
| T17 | 2016 Junior PGA Championship | 71 | 73 | 65 | 75 | 284 |
| 1 | 2016 Western Junior Championship | 71 | 66 | 71 | 70 | 278 |