| Rank | Name | Country | Time |
| 1 | PATTERSON Mitchell | AUS |
49.51 |
| 2 | TUNE Garth |
RSA |
50.36 |
| 3 |
HUEGILL Geoff | AUS |
50.47 |
| 4 |
STAPLES Lachlan |
AUS |
50.70 |
| 5 |
PINE Adam |
AUS |
50.88 |
| 6 |
KANEDA Kazuya |
JPN | 50.96 |
Thanks to a stacked roster and some WRs, the U.S. won the 2009 Duel in the Pool.
In 10 years, Michael Phelps went from a teenager to arguably the best Olympian ever.