400 metres Freestyle, Men
Participants
| Nr. | Athlete | NOC |
|---|---|---|
| 1 | Kevin O'Halloran |  AUS |
| 2 | Murray Rose | AUS |
| 3 | Gary Winram | AUS |
| 4 | Sylvio dos Santos |  BRA |
| 5 | Bill Slater |  CAN |
| 6 | Gilberto Martínez |  COL |
| 7 | Raúl Martín |  CUB |
| 8 | Karri Käyhkö |  FIN |
| 9 | Jean Boiteux |  FRA |
| 10 | Jacques Collignon | FRA |
| 11 | Guy Montserret | FRA |
| 12 | Neil McKechnie |  GBR |
| 13 | Jack Wardrop | GBR |
| 14 | Hans Köhler |  GER |
| 15 | Hans Zierold | GER |
| 16 | Wan Shiu Ming |  HKG |
| 17 | Jenő Áts |  HUN |
| 18 | Habib Nasution |  INA |
| 19 | Angelo Romani |  ITA |
| 20 | Yoshiro Noda |  JPN |
| 21 | Koji Nonoshita | JPN |
| 22 | Tsuyoshi Yamanaka | JPN |
| 23 | Ulpiano Babol |  PHI |
| 24 | Bana Sailani | PHI |
| 25 | Tony Briscoe |  RSA |
| 26 | Peter Duncan | RSA |
| 27 | Billy Steuart | RSA |
| 28 | Per-Olof Östrand |  SWE |
| 29 | Boris Nikitin |  URS |
| 30 | George Breen |  USA |
| 31 | George Onekea | USA |
| 32 | Bill Woolsey | USA |
Non-starters
| Nr. | Athlete | NOC |
|---|---|---|
| 1 | Haroldo Lara | BRA |
| 2 | George Park | CAN |
| 3 | György Csordás | HUN |
| 4 | Sándor Záborszky | HUN |
| 5 | Shrichand Bajaj |  IND |