All sub 1'45" performances from 2015
| # | Mark | SR | Athlete | IR | Nat | Pos | Venue | Date |
| 1 | 1.42.51 | 1 | Amel Tuka | | BIH | 1 | Monaco | 17-07-2015 |
| 2 | 1.42.66 | 2 | Nijel Amos | | BOT | 2 | Monaco | 17-07-2015 |
| 3 | 1.42.97 | 3 | Ayanleh Souleiman | | DJI | 3 | Monaco | 17-07-2015 |
| 4 | 1.43.08 | | Ayanleh Souleiman | 2 | DJI | 1 | Barcelona | 08-07-2015 |
| 5 | 1.43.27 | | Nijel Amos | 2 | BOT | 1 | Lausanne | 09-07-2015 |
| 6 | 1.43.28 | | Nijel Amos | 3 | BOT | 1 | Berlin | 06-09-2015 |
| 7 | 1.43.34 | 4 | Boris Berian | | USA | 4 | Monaco | 17-07-2015 |
| 8 | 1.43.45 | 5 | Adam Kszczot | | POL | 5 | Monaco | 17-07-2015 |
| 9 | 1.43.56 | 6 | Mohammed Aman | | ETH | 1 | Roma | 04-06-2015 |
| 10 | 1.43.56 | 7 | Robert Biwott | | KEN | 2 | Barcelona | 08-07-2015 |
| 11 | 1.43.58 | 8 | David Rudisha | | KEN | 1 | New York NY | 13-06-2015 |
| 12 | 1.43.60 | 9 | Ferguson Rotich | | KEN | 1 | Nairobi | 01-08-2015 |
| 13 | 1.43.72 | 10 | Marcin Lewandowski | | POL | 6 | Monaco | 17-07-2015 |
| 14 | 1.43.76 | | David Rudisha | 2 | KEN | 2 | Lausanne | 09-07-2015 |
| 15 | 1.43.78 | | Ayanleh Souleiman | 3 | DJI | 1 | Doha | 15-05-2015 |
| 16 | 1.43.80 | | Nijel Amos | 4 | BOT | 2 | Roma | 04-06-2015 |
| 17 | 1.43.82 | 11 | Musaeb Abdulrahman Balla | | QAT | 3 | Barcelona | 08-07-2015 |
| 18 | 1.43.84 | | Boris Berian | 2 | USA | 2 | New York NY | 13-06-2015 |
| 19 | 1.43.84 | | Amel Tuka | 2 | BIH | 1 | Madrid | 11-07-2015 |
| 20 | 1.43.88 | 12 | Pierre-Ambroise Bosse | | FRA | 3 | New York NY | 13-06-2015 |
| 21 | 1.43.89 | | David Rudisha | 3 | KEN | 2 | Nairobi | 01-08-2015 |
| 22 | 1.43.92 | 13 | Job Kinyor | | KEN | 3 | Roma | 04-06-2015 |
| 23 | 1.43.92 | | Ferguson Rotich | 2 | KEN | 7 | Monaco | 17-07-2015 |
| 24 | 1.43.94 | | Adam Kszczot | 2 | POL | 4 | Roma | 04-06-2015 |
| 25 | 1.44.00 | | Ferguson Rotich | 3 | KEN | 5 | Roma | 04-06-2015 |
| 26 | 1.44.07 | 14 | Alfred Kipketer | | KEN | 3 | Nairobi | 01-08-2015 |
| 27 | 1.44.09 | 15 | Antoine Gakeme | | BDI | 2 | Madrid | 11-07-2015 |
| 28 | 1.44.09 | | Job Kinyor | 2 | KEN | 3 | Madrid | 11-07-2015 |
| 29 | 1.44.09 | | Mohammed Aman | 2 | ETH | 8 | Monaco | 17-07-2015 |
| 30 | 1.44.19 | | Amel Tuka | 3 | BIH | 1 | Velenje | 01-07-2015 |
| 31 | 1.44.2 m | | David Rudisha | 4 | KEN | 1/2 | Nairobi | 31-07-2015 |
| 32 | 1.44.22 | | Adam Kszczot | 3 | POL | 2 | Berlin | 06-09-2015 |
| 33 | 1.44.24 | | Mohammed Aman | 3 | ETH | 3 | Berlin | 06-09-2015 |
| 34 | 1.44.24 | 16 | Taoufik Makhloufi | | ALG | 4 | Berlin | 06-09-2015 |
| 35 | 1.44.25 | | Marcin Lewandowski | 2 | POL | 6 | Roma | 04-06-2015 |
| 36 | 1.44.33 | | Alfred Kipketer | 2 | KEN | 9 | Monaco | 17-07-2015 |
| 37 | 1.44.4 m | 17 | Asbel Kiprop | | KEN | 1/A | Nairobi | 21-03-2015 |
| 38 | 1.44.42 | | Pierre-Ambroise Bosse | 2 | FRA | 7 | Roma | 04-06-2015 |
| 39 | 1.44.44 | | Ferguson Rotich | 4 | KEN | 3 | Lausanne | 09-07-2015 |
| 40 | 1.44.50 | 18 | Edwin Melly | | KEN | 4 | Barcelona | 08-07-2015 |
| 41 | 1.44.51 | 19 | Willy Tarbei | | KEN | 1 | Nairobi | 17-06-2015 |
| 42 | 1.44.53 | | Ferguson Rotich | 5 | KEN | 2 | Doha | 15-05-2015 |
| 43 | 1.44.53 | 20 | Nick Symmonds | | USA | 1 | Eugene OR | 28-06-2015 |
| 44 | 1.44.55 | 21 | Kipyegon Bett | | KEN | 2 | Nairobi | 17-06-2015 |
| 45 | 1.44.56 | 22 | Jackson Kivuva | | KEN | 4 | Nairobi | 01-08-2015 |
| 46 | 1.44.57 | | Nijel Amos | 5 | BOT | 1 | London | 25-07-2015 |
| 47 | 1.44.59 | | Alfred Kipketer | 3 | KEN | 3 | Doha | 15-05-2015 |
| 48 | 1.44.6 m | | Ferguson Rotich | 6 | KEN | 1/1 | Nairobi | 31-07-2015 |
| 49 | 1.44.6 m | | Job Kinyor | 3 | KEN | 2/2 | Nairobi | 31-07-2015 |
| 50 | 1.44.62 | 23 | Matthew Centrowitz | | USA | 4 | New York NY | 13-06-2015 |
| 51 | 1.44.62 | | Musaeb Abdulrahman Balla | 2 | QAT | 5 | Berlin | 06-09-2015 |
| 52 | 1.44.64 | 24 | Nader Belhanbel | | MAR | 5 | Barcelona | 08-07-2015 |
| 53 | 1.44.67 | | David Rudisha | 5 | KEN | 2 | London | 25-07-2015 |
| 54 | 1.44.67 | | Adam Kszczot | 4 | POL | 1 | Szczecin | 09-08-2015 |
| 55 | 1.44.82 | | Adam Kszczot | 5 | POL | 1 | Rieti | 13-09-2015 |
| 56 | 1.44.84 | 25 | Erik Sowinski | | USA | 2 | Eugene OR | 28-06-2015 |
| 57 | 1.44.84 | | Amel Tuka | 4 | BIH | 1/3 | Beijing | 23-08-2015 |
| 58 | 1.44.85 | | Adam Kszczot | 6 | POL | 3 | London | 25-07-2015 |
| 59 | 1.44.85 | | Ferguson Rotich | 7 | KEN | 2/3 | Beijing | 23-08-2015 |
| 60 | 1.44.9 m | 26 | Nicholas Kipkoech | | KEN | 1/2 | Nairobi | 10-06-2015 |
| 61 | 1.44.92 | | Mohammed Aman | 4 | ETH | 1 | Eugene OR | 30-05-2015 |
| 62 | 1.44.92 | 27 | Casimir Loxsom | | USA | 1/1 | Eugene OR | 26-06-2015 |
| 63 | 1.44.93 | | Antoine Gakeme | 2 | BDI | 1 | Sotteville-lès-Rouen | 06-07-2015 |
| 64 | 1.44.94 | | David Rudisha | 6 | KEN | 1 | Melbourne | 21-03-2015 |
| 65 | 1.44.95 | | Pierre-Ambroise Bosse | 3 | FRA | 4 | Doha | 15-05-2015 |
| 66 | 1.44.97 | | Marcin Lewandowski | 3 | POL | 2 | Szczecin | 09-08-2015 |
| 67 | 1.44.97 | | Adam Kszczot | 7 | POL | 1/1 | Beijing | 23-08-2015 |
| 68 | 1.44.99 | 28 | Jeffrey Riseley | | AUS | 1 | Lignano Sabbiadoro | 07-07-2015 |
| 69 | 1.44.99 | | Alfred Kipketer | 4 | KEN | 2/1 | Beijing | 23-08-2015 |