| Lane/Order | BIB | ATHLETE | Seeding Time | Note | |
|---|---|---|---|---|---|
| 1 | 870 | TRN | SHAWN DEVRON SOIDIH | 54.94 | q |
| 2 | 116 | KBG | MOHAMMAD NAZRUL BIN NAHUIDDIE | 55.43 | Q |
| 3 | 709 | TBN | MARK JOEL PRIMUS | 54.95 | Q |
| 4 | 661 | SPN | MUHAMMAD MUQZAIRY BIN MAHAJODA | 50.69 | Q |
| 5 | 254 | KPU | MUHAMMAD KHALIL BIN HELMI | 49.85 | Q |
| 6 | 378 | NBN | IDWINE IDRIS | 52.58 | Q |
| 7 | 187 | KKU | ADY PUTRA AQASHA BIN NORAHIMIEE | 51.31 | Q |
| 8 | 266 | KDT | DEAFRON BIN JOHKIUS | 55.24 | Q |
| Lane/Order | BIB | ATHLETE | Seeding Time | Note | |
|---|---|---|---|---|---|
| 1 | 783 | TPD | WINESHESTER JONES | 56.04 | Q |
| 2 | 076 | KGU | SWEFE JEFFERY | 54.65 | q |
| 3 | 548 | PTT | BRAYEN ADAM SHAH BIN MOHD FAZLIE | 52.75 | Q |
| 4 | 351 | LDU | SYAHRIZAN BIN RUSMAN | 51.44 | Q |
| 5 | 044 | KBN | MUHAMMAD FIRDAUS BIN DARUS SALAM | 52.21 | Q |
| 6 | 216 | KMU | ETHANNIEL MOJUTAN | 50.95 | Q |
| 7 | 457 | PPG | PAUL XAVIER BIN PRISLEE | 53.99 | Q |
| 8 | 836 | TGD | MOHAMAD ZERWAN BIN REGNAGMA | 55.22 | Q |
| Lane/Order | BIB | ATHLETE | Seeding Time | Note | |
|---|---|---|---|---|---|
| 1 | 835 | TGD | MOHAMMAD AZRIL AIZAT BIN JAIMI | 54.17 | q |
| 2 | 151 | KBD | VELLDINNHO XAVIER VINUS | 54.51 | q |
| 3 | 038 | KBN | ZAINUDDIN BIN BAHRUDDIN | 54.53 | Q |
| 4 | 571 | RNU | GREG GASPAR JUANIS @ JUDE | 54.19 | Q |
| 5 | 449 | PPG | FANZ XAVIER FANCEY SAMI | 51.83 | Q |
| 6 | 233 | KMU | MUHAMAD AZRIZAM HAIZAL BIN JOLISON | 53.03 | Q |
| 7 | 118 | KBG | HARDIYAN SYA | 52.56 | Q |
| 8 | 544 | PTT | MOHAMAD SHAFIQ ASRI BIN ABDULLAH | 55.65 | Q |