Swimming at the 2000 Summer Olympics – Men's 100 metre freestyle Heats Heats

| Heat | Lane | Name_ | Nationality | Time_ |
|---|---|---|---|---|
| 9 | 4 | Pieter van den Hoogenband | Netherlands | 48.64 |
| 10 | 5 | Michael Klim | Australia | 49.09 |
| 10 | 6 | Lars Frölander | Sweden | 49.16 |
| 10 | 4 | Alexander Popov | Russia | 49.29 |
| 9 | 5 | Gary Hall, Jr. | United States | 49.32 |
| 8 | 2 | Denis Pimankov | Russia | 49.45 |
| 8 | 5 | Chris Fydler | Australia | 49.45 |
| 9 | 7 | Salim Iles | Algeria | 49.70 |
| 8 | 4 | Neil Walker | United States | 49.73 |
| 10 | 2 | Lorenzo Vismara | Italy | 49.74 |
| 10 | 1 | Roland Mark Schoeman | South Africa | 49.74 |
| 10 | 8 | José Meolans | Argentina | 49.75 |
| 9 | 3 | Gustavo Borges | Brazil | 49.76 |
| 8 | 7 | Christian Tröger | Germany | 49.76 |
| 9 | 6 | Attila Zubor | Hungary | 49.79 |