| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS | ms* | WIND |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 2 | 2400 | Noah LYLES |
USA |
19.62 Q | +1.1 | |
| 2 | 1 | 3 | 2396 | Erriyon KNIGHTON |
USA |
19.77 Q | +0.3 | |
| 3 | 2 | 2 | 2355 | Kenneth BEDNAREK |
USA |
19.84 Q SB | +1.1 | |
| 4 | 3 | 2 | 2320 | Jereem RICHARDS |
TTO |
19.86 q | +1.1 | |
| 5 | 1 | 1 | 1740 | Alexander OGANDO |
DOM |
19.91 Q NR | -0.1 | |
| 6 | 2 | 1 | 2115 | Joseph FAHNBULLEH |
LBR |
19.92 Q | -0.1 | |
| 7 | 4 | 2 | 2247 | Luxolo ADAMS |
RSA |
20.09 q | +1.1 | |
| 8 | 2 | 3 | 1639 | Aaron BROWN |
CAN |
20.10 Q | .096 | +0.3 |
| 9 | 3 | 3 | 2012 | Filippo TORTU |
ITA |
20.10 PB | .099 | +0.3 |
| 10 | 4 | 3 | 1738 | Yancarlos MARTÍNEZ |
DOM |
20.21 SB | +0.3 | |
| 11 | 3 | 1 | 1638 | Jerome BLAKE |
CAN |
20.29 | -0.1 | |
| 12 | 4 | 1 | 1882 | Nethaneel MITCHELL-BLAKE |
GBR |
20.30 | -0.1 | |
| 13 | 5 | 2 | 2340 | Tarsis Gracious OROGOT |
UGA |
20.35 | +1.1 | |
| 14 | 6 | 2 | 2184 | Udodi Chudi ONWUZURIKE |
NGR |
20.39 | +1.1 | |
| 15 | 5 | 3 | 1681 | Zhenye XIE |
CHN |
20.41 | +0.3 | |
| 16 | 5 | 1 | 2250 | Sinesipho DAMBILE |
RSA |
20.47 | -0.1 | |
| 17 | 6 | 3 | 2074 | Koki UEYAMA |
JPN |
20.48 | +0.3 | |
| 18 | 7 | 2 | 1867 | Joe FERGUSON |
GBR |
20.52 | +1.1 | |
| 19 | 8 | 2 | 1853 | Guy MAGANGA GORRA |
GAB |
20.65 | +1.1 | |
| 20 | 6 | 1 | 2389 | Fred KERLEY |
USA |
20.68 | -0.1 | |
| 21 | 7 | 3 | 1540 | Calab LAW |
AUS |
20.72 | +0.3 | |
| 22 | 7 | 1 | 2052 | Shota IIZUKA |
JPN |
20.77 | -0.1 | |
| 23 | 8 | 3 | 2025 | Rasheed DWYER |
JAM |
20.87 | +0.3 | |
| 1 | 2020 | Yohan BLAKE |
JAM |
DNS |
ms - Milliseconds - shown when two or more competitors finish with the same time down to hundredths of a second