| Rank | Bib | Competitor | R. Time | Result | |
|---|---|---|---|---|---|
| 1 | 2098 | RSA | C. FREDERICKS | 0.156 | 48.50 |
| 2 | 2363 | TTO | J. GORDON | 0.170 | 48.75 |
| 3 | 1151 | BAH | J. GIBSON | 0.159 | 48.78 |
| 4 | 1395 | ENG | N. FLANNERY | 0.160 | 49.46 |
| 5 | 1947 | NGR | C. CUEVAS-MORTON | 0.225 | 49.65 |
| 6 | 1768 | KEN | B. MUCHERU | 0.167 | 49.99 |
| 7 | 1493 | ENG | R. YATES | 0.187 | 50.13 |
| 1708 | JAM | A. WHYTE | 0.181 | ||
| Rank | Bib | Competitor |
|---|---|---|
| 1 | 2098 |
 Time:48.50
R. Time:
0.156
|
| 2 | 2363 |
 Time:48.75
R. Time:
0.170
SB
|
| 3 | 1151 |
 Time:48.78
R. Time:
0.159
NR
|
| 4 | 1395 |
 Time:49.46
R. Time:
0.160
|
| 5 | 1947 |
 Time:49.65
R. Time:
0.225
|
| 6 | 1768 |
 Time:49.99
R. Time:
0.167
|
| 7 | 1493 |
 Time:50.13
R. Time:
0.187
|
| 1708 |
 Time:
R. Time:
0.181
DNF
|
| Lane | Competitor | Bib | SB | PB |
|---|---|---|---|---|
| 1 | ENG N. FLANNERY SB: 48.80 PB: 48.80 | 1395 | 48.80 | 48.80 |
| 2 | NGR C. CUEVAS-MORTON SB: 49.39 PB: 48.79 | 1947 | 49.39 | 48.79 |
| 3 | TTO J. GORDON SB: 49.29 PB: 47.69 | 2363 | 49.29 | 47.69 |
| 4 | RSA C. FREDERICKS SB: 48.42 PB: 48.14 | 2098 | 48.42 | 48.14 |
| 5 | BAH J. GIBSON SB: 48.95 PB: 48.95 | 1151 | 48.95 | 48.95 |
| 6 | JAM A. WHYTE SB: 48.58 PB: 48.58 | 1708 | 48.58 | 48.58 |
| 7 | ENG R. YATES SB: 49.46 PB: 49.06 | 1493 | 49.46 | 49.06 |
| 8 | KEN B. MUCHERU SB: 49.25 PB: 49.25 | 1768 | 49.25 | 49.25 |
