| # | Name | Team | Time | Date | Meet |
|---|---|---|---|---|---|
| 1 | Gregorio Paltrinieri |
ITA | 14:33.10 | 08/13 | 2020 Sette Colli Trophy
Rome, ITA |
| 2 | Mykhailo Romanchuk |
UKR | 14:41.63 | 03/13 | 2020 Ukraine Winter Swimming Championships
Kharkiv, UKR |
| 3 | Florian Wellbrock |
GER | 14:46.61 | 02/07 | 2020 MWG Swim Cup
Madgeburg, GER |
| 4 | Domenico Acerenza |
ITA | 14:49.98 | 08/13 | 2020 Sette Colli Trophy
Rome, ITA |
| 5 | Akos Kalmar |
HUN | 14:52.00 | 07/26 | 4 Nations Meet
Budapest, HUN |
| 6 | Guilherme Costa |
BRA | 14:55.49 | 12/07 | 2019 Toyota US Open
Atlanta, GA |
| 7 | Daniel Jerivs |
GBR | 14:57.90 | 01/24 | 2020 Luxembourg Euro Meet
Luxembourg, LUX |
| 8 | Ayatsugu Hirai |
JPN | 14:58.03 | 02/15 | 2020 Konami Open
Tokyo, JPN |
| 9 | Huy Hoang Nguyen |
VIE | 14:58.14 | 12/05 | 30th South East Asian Games
New Park City, PHI |
| 10 | Jan Micka |
CZE | 14:58.30 | 11/08 | 2019 FINA World Cup
Doha, QAT |
| 11 | Gergely Gyurta |
HUN | 14:59.88 | 11/08 | 2019 FINA World Cup
Doha, QAT |
| 12 | Anton Ipsen |
DEN | 15:00.45 | 01/19 | Flanders Cup
Antwerp, BEL |
| 13 | Sergii Frolov |
UKR | 15:01.82 | 10/19 | 2019 7th CISM Military World Games
Wuhan, CHN |
| 14 | Jordan Wilimovsky |
USA | 15:03.29 | 12/07 | 2019 Toyota US Open
Atlanta, GA |
| 15 | Bobby Finke |
USA | 15:05.55 | 12/07 | 2019 Toyota US Open
Atlanta, GA |
| 16 | Tobias Robinson |
GBR | 15:05.71 | 03/13 | 2020 Edinburgh International Meet
Edinburgh, GBR |
| 17 | Marc Antoine Olivier |
FRA | 15:06.29 | 08/13 | 2020 Sette Colli Trophy
Rome, ITA |
| 18 | Shogo Takeda |
JPN | 15:07.05 | 08/03 | 2019 FINA World Cup
Tokyo, JPN |
| 19 | Felix Auboeck |
AUT | 15:07.22 | 07/26 | 4 Nations Meet
Budapest, HUN |
| 20 | Dimitrios Negris |
GRE | 15:08.79 | 12/20 | International Swimming Meet “Alexandria”
Thessaloniki, GRE |
| 21 | Michael Brinegar |
USA | 15:08.84 | 12/07 | 2019 Toyota US Open
Atlanta, GA |
| 22 | Sven Schwarz |
GER | 15:09.53 | 02/28 | Berlin Swim Open
Berlin, GER |
| 23 | Andreas GEORGAKOPOULOS |
GRE | 15:09.82 | 12/20 | International Swimming Meet “Alexandria”
Thessaloniki, GRE |
| 24 | Alexander Norgaard |
DEN | 15:10.18 | 03/06 | Swedish Grand Prix Malmö
Malmö, SWE |
| 25 | Gergely Gyruta |
HUN | 15:10.28 | 08/13 | 2020 Sette Colli Trophy
Rome, ITA |
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