Men 400 Freestyle · Heats · May 23, 2026–May 24, 20262026 Mare Nostrum · Monaco
| Place | Swimmer | Time |
|---|---|---|
| 1Heat — | Victor Johansson | 3:50.09 |
| 2Heat — | Sauveur Cristofini | 3:50.65 |
| 3Heat — | John William Dabin | 3:55.69 |
| 4Heat — | Marco De Tullio | 3:56.66 |
| 5Heat — | Aubry David | 3:57.33 |
| 6Heat — | Franko Grgic | 3:58.40 |
| 7Heat — | Teo Malfait | 3:59.40 |
| 8Heat — | Richard Marton | 4:01.09 |
| 9Heat — | Aryan Nehra | 4:01.76 |
| 10Heat — | Paul Beaugrand | 4:02.19 |
| 11Heat — | Alberto Vega Sancho | 4:03.41 |
| 12Heat — | Florentin Lovens | 4:04.90 |
| 13Heat — | Gabriel Jakub | 4:05.56 |
| 14Heat — | Paolo Agogeri | 4:05.85 |
| 15Heat — | Xavier Ventura | 4:06.91 |
| 16Heat — | Patrick Eremija | 4:06.95 |
| 17Heat — | Antoine Saive | 4:07.37 |
| 18Heat — | Oliver Shao | 4:07.99 |
| 19Heat — | Hugo Janvier | 4:08.16 |
| 20Heat — | Kevin Teixera Pereira | 4:08.59 |
| 21Heat — | Evan Viguier | 4:09.74 |
| 22Heat — | Enzo Oumailia | 4:10.29 |
| 23Heat — | Andras Galos | 4:10.98 |
| 24Heat — | Raphaël Sirour | 4:11.54 |
| 25Heat — | Lorenzo Guarnieri | 4:11.70 |
| 26Heat — | Connor MacDonald | 4:12.28 |
| 27Heat — | Theo Druenne | 4:19.30 |
| 28Heat — | Lennox Turnham-Wheatley | 4:25.61 |
| 29Heat — | Robin Belorgey | 4:26.51 |
| 30Heat — | Andrea Gilles | 4:41.40 |
| 31Heat — | Sami Khafallah | 4:54.87 |
| —Heat — | Adrian Gustavo Ywanaga Papi | DNS |
SourceResults
Meet source; a separate document for this swim is not linked.