Boonchant is a two-time Rolex Junior All-American, as she earned honorable mention accolades in 2015 before claiming first-team honors this year. The senior at IMG Academy earned her first AJGA victory at the ANNIKA Invitational and also posted top-five finishes at the Rolex Girls Junior Championship and TaylorMade-adidas Golf Junior at Innisbrook hosted by Justin Rose. Boonchant is verbally committed to Duke University and competed for the 2016 Wyndham Cup East Team.
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| Rank | Event | R1 | R2 | R3 | R4 | Total |
| 19 | 2016 The PING Invitational | 77 | 80 | 72 | 229 | |
| T23 | 2016 Yani Tseng Invitational presented by the Swinging Skirts | 74 | 79 | 72 | 225 | |
| 4 | 2016 Rolex Girls Junior Championship | 73 | 72 | 74 | 73 | 292 |
| 16 | 2016 Thunderbird International Junior | 78 | 74 | 75 | 227 | |
| T3 | 2016 TaylorMade-adidas Golf Junior at Innisbrook hosted by Justin Rose | 75 | 72 | 73 | 220 | |
| 1 | 2016 ANNIKA Invitational | 75 | 70 | 65 | 210 |