| KEPUTUSAN |
| MAKLUMAT ACARA | ||
| Acara 318 - 400 m | Kat LELAKI 18 | Peringkat SEPARUH AKHIR |
| 2 tempat teratas (Q) dan 2 masa terbaik (q) layak. | ||
| REKOD MSSJ | 49.04 s | MUHAMMAD SAIFUL SAFWAN BIN SAIFUDDIN | KLUANG | 2016 |
| REKOD MSSM | 47.50 s | MOHD ZAIFUL ZAINAL ABIDIN | KUALA LUMPUR | 1999 |
| SEPARUH AKHIR : 1 | |||||
| Ked | Bib | Nama | Pasukan | Masa | * |
| 1 | GU4 | WILLS HARNESSY ANAK GINDAL | PASIR GUDANG | 51.75 s | Q |
| 2 | KU4 | MUHAMMAD YAFIK HAKIMI BIN AZMIR ESMAD | KULAI | 52.65 s | Q |
| 3 | JB21 | MUHAMAD FAHIM BIN MOHD FAIZAL | JOHOR BAHRU | 53.29 s | q |
| 4 | MR13 | MUHAMMAD YUSSUF BIN JAAFAR | MUAR | 54.82 s | |
| 5 | BP18 | MUHAMMAD IDRUSLIZAM BIN TURIMAN | BATU PAHAT | 55.63 s | |
| 6 | PN14 | MUHAMAD ZULHAKIM DANIAL BIN MOHD NOR | PONTIAN | 55.81 s | |
| 7 | SG3 | MUHAMMAD ADAM DUHHA BIN MOHD ASNIZAM | SEGAMAT | 56.78 s | |
| SEPARUH AKHIR : 2 | |||||
| Ked | Bib | Nama | Pasukan | Masa | * |
| 1 | JB5 | SHAHEEN BIN SAHARIZAL | JOHOR BAHRU | 53.70 s | Q |
| 2 | MR16 | MUHAMMAD NUR IMAN BIN JUMAIN | MUAR | 54.12 s | Q |
| 3 | KG4 | LEW XING LI | KLUANG | 56.06 s | |
| 4 | KU18 | MUHAMMAD AZIB DANIAL BIN ZAINAL | KULAI | 56.88 s | |
| 5 | KT7 | PUTERA MUHAMMAD QAID MUAZ BIN MOHD ZALLEI | KOTA TINGGI | 59.43 s | |
| 6 | BP2 | MUHAMMAD NURHAN NABIL BIN NOOR AHMAD | BATU PAHAT | 60.45 s | |
| SEPARUH AKHIR : 3 | |||||
| Ked | Bib | Nama | Pasukan | Masa | * |
| 1 | GU5 | MOHAMMAD AKMAL HAZIQ BIN MOHD ZAHARI | PASIR GUDANG | 51.63 s | Q |
| 2 | TK4 | AHMAD IZZUDIN SHAH B MOHD ADDLI | TANGKAK | 52.15 s | Q |
| 3 | KT3 | MUHAMMAD SAIFULLAH HAZIQ BIN SUHAIDI | KOTA TINGGI | 52.54 s | q |
| 4 | SG4 | WAN MUHAMMAD ANIQ BIN WAN ANUAR | SEGAMAT | 55.40 s | |
| 5 | MG39 | RUL SYAZWAN AMEER BIN RUZMAN | MERSING | 55.70 s | |
| 6 | PN10 | MUHAMMAD AKIF DANIEL BIN MOHAMAD FAIRUZ | PONTIAN | 56.65 s | |