Race Results for Race 4 in Optimist (U12) class (Final)
27 May 2018
| Sail No | Boat | Name | Cty/Rgn | Place | Points |
| 06 | | Thanadej Sooparnich |  | 1 | 1 |
| THA 414 | | Kans Kachachuen | | 2 | 2 |
| THA848 | | Thippawan Khumpinit | | 3 | 3 |
| THA113 | . | Sam Giolder | | 4 | 4 |
| THA 2704 | | Mirin Kensvewsuk | | 5 | 5 |
| THA 4803 | | Mathasit Yooyen | | 6 | 6 |
| Cocacola 03 | | Oonruen Boontawee | | 7 | 7 |
| Cococola 17 | | Phanphatsa Khumban | | 8 | 8 |
| Cocacola 18 | | Donnaya Hasap | | 9 | 9 |
| THA 946 | | Paranee Muangngam | | 10 | 10 |
| THA 66 | | Nattakan Somdee | | 11 | 11 |
| Cocacola 04 | | Thoranist Tubeium | | 12 | 12 |
| THA 240 | | Auttapon Sailek | | 13 | 13 |
| THA 2288 | | Patcharapan Okaloy | | 14 | 14 |
| THA 798 | | Kirati Leicesterjames | | 15 | 15 |
| THA 23 | | Korakot Sonngai | | 16 | 16 |
| THA 41 | | Veerasak Aiewsae | | 17 | 17 |
| THA 22 | | Surapa Muangngam | | 18 | 18 |