| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 3059 | Kerron Clement |
USA
|
48.26 Q SB | 0.141 |
| 2 | 2699 | Bonface Mucheru |
KEN
|
48.85 Q SB | 0.181 |
| 3 | 2357 | Sergio FERNÁNDEZ |
ESP
|
48.87 NR | 0.150 |
| 4 | 2008 | Abdelmalik LAHOULOU |
ALG
|
49.08 | 0.200 |
| 5 | 2621 | Jaheel HYDE |
JAM
|
49.17 | 0.131 |
| 6 | 2652 | Keisuke NOZAWA |
JPN
|
49.20 | 0.158 |
| 7 | 2826 | Eric CRAY |
PHI
|
49.37 | 0.139 |
| 8 | 2457 | Jack Green |
GBR
|
49.54 | 0.185 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 2631 | Annsert Whyte |
JAM
|
48.32 Q PB | 0.159 |
| 2 | 2872 | Javier Culson |
PUR
|
48.46 Q SB | 0.154 |
| 3 | 2999 | Yasmani COPELLO |
TUR
|
48.61 q | 0.201 |
| 4 | 2382 | Rasmus MÄGI |
EST
|
48.64 q | 0.121 |
| 5 | 2913 | L.J. van Zyl |
RSA
|
49.00 | 0.161 |
| 6 | 2261 | Jordin ANDRADE |
CPV
|
49.32 | 0.165 |
| 7 | 2405 | Oskari MÖRÖ |
FIN
|
49.75 | 0.115 |
| 8 | 2155 | Mahau SUGUIMATI |
BRA
|
49.77 | 0.163 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 2581 | Thomas BARR |
IRL
|
48.39 Q NR | 0.172 |
| 2 | 2686 | Aron Kipchumba KOECH |
KEN
|
48.49 Q PB | 0.139 |
| 3 | 3095 | Byron ROBINSON |
USA
|
48.65 PB | 0.161 |
| 4 | 2807 | Karsten WARHOLM |
NOR
|
48.81 | 0.151 |
| 5 | 2090 | Michaël Bultheel |
BEL
|
49.46 | 0.156 |
| 6 | 3042 | Andrés Silva |
URU
|
49.75 | 0.166 |
| 7 | 2869 | Eric Alejandro |
PUR
|
49.95 | 0.199 |
| 2615 | Roxroy Cato |
JAM
|
DQ R 168.7a | 0.183 |