| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS | ms* | WIND | 
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 3 | 2202 | Bayanda WALAZA | 
 RSA                 | 
                21.00 Q | +0.3 | |
| 2 | 2 | 3 | 2358 | Jaden WILEY | 
 USA                 | 
                21.04 Q | +0.3 | |
| 3 | 1 | 1 | 1532 | Gout GOUT | 
 AUS                 | 
                21.07 Q | -0.9 | |
| 4 | 3 | 3 | 1558 | Carlos BROWN JR. | 
 BAH                 | 
                21.19 q | +0.3 | |
| 5 | 2 | 1 | 1862 | Magnus JOHANNSSON | 
 HKG                 | 
                21.21 Q | -0.9 | |
| 6 | 4 | 3 | 1527 | Zachary DELLA ROCCA | 
 AUS                 | 
                21.23 q | +0.3 | |
| 7 | 1 | 2 | 2259 | William TRULSSON | 
 SWE                 | 
                21.30 Q | .294 | -1.2 | 
| 8 | 5 | 3 | 1563 | Aragorn STRAKER | 
 BAR                 | 
                21.30 | .299 | +0.3 | 
| 9 | 3 | 1 | 1987 | Kei WAKANA | 
 JPN                 | 
                21.33 | -0.9 | |
| 10 | 4 | 1 | 2019 | Yaqoub Mohamed AL AZEMI | 
 KUW                 | 
                21.35 | -0.9 | |
| 11 | 2 | 2 | 1792 | Jake ODEY-JORDAN | 
 GBR                 | 
                21.40 Q | -1.2 | |
| 12 | 6 | 3 | 1982 | Katsuki SATO | 
 JPN                 | 
                21.47 | +0.3 | |
| 13 | 3 | 2 | 1928 | Eduardo LONGOBARDI | 
 ITA                 | 
                21.52 | -1.2 | |
| 14 | 7 | 3 | 1759 | Juho VENÄLÄINEN | 
 FIN                 | 
                21.53 | +0.3 | |
| 15 | 8 | 3 | 1623 | Benjamin Ignacio ARAVENA | 
 CHI                 | 
                21.55 | +0.3 | |
| 16 | 5 | 1 | 1778 | Dejan OTTOU | 
 FRA                 | 
                21.65 | .644 | -0.9 | 
| 17 | 6 | 1 | 1600 | Hristo ILIEV | 
 BUL                 | 
                21.65 | .644 | -0.9 | 
| 18 | 4 | 2 | 1955 | Romario Orlando HINES | 
 JAM                 | 
                21.68 | -1.2 | |
| 19 | 5 | 2 | 2062 | Alejandro CARDENAS | 
 MEX                 | 
                21.69 | -1.2 | |
| 20 | 6 | 2 | 2339 | Jesse MYERS | 
 USA                 | 
                21.80 | -1.2 | |
| 21 | 7 | 1 | 1854 | Jackson CLARKE | 
 GUY                 | 
                21.88 | -0.9 | |
| 22 | 8 | 1 | 2225 | Malith THAMEL | 
 SRI                 | 
                21.93 | .924 | -0.9 | 
| 22 | 7 | 2 | 2223 | Indusara Vidushan RAJAMUNI | 
 SRI                 | 
                21.93 | .924 | -1.2 | 
| 2 | 1641 | Peng KONG | 
 CHN                 | 
                DQ | 
ms - Milliseconds - shown when two or more competitors finish with the same time down to hundredths of a second