All sub 1'45" performances from 2018
| # | Mark | SR | Athlete | IR | Nat | Pos | Venue | Date |
| 1 | 1.42.05 | 1 | Emmanuel Korir | | KEN | 1 | London | 22-07-2018 |
| 2 | 1.42.14 | 2 | Nijel Amos | | BOT | 1 | Monaco | 20-07-2018 |
| 3 | 1.42.79 | | Emmanuel Korir | 2 | KEN | 1 | Birmingham | 18-08-2018 |
| 4 | 1.43.12 | 3 | Clayton Murphy | | USA | 2 | London | 22-07-2018 |
| 5 | 1.43.12 | 4 | Wyclife Kinyamal | | KEN | 3 | London | 22-07-2018 |
| 6 | 1.43.20 | 5 | Brandon McBride | | CAN | 2 | Monaco | 20-07-2018 |
| 7 | 1.43.25 | 6 | Michael Saruni | | KEN | 1 | Tucson AZ | 28-04-2018 |
| 8 | 1.43.29 | | Nijel Amos | 2 | BOT | 4 | London | 22-07-2018 |
| 9 | 1.43.46 | 7 | Jonathan Kitilit | | KEN | 1 | Nairobi | 23-06-2018 |
| 10 | 1.43.53 | | Jonathan Kitilit | 2 | KEN | 2 | Birmingham | 18-08-2018 |
| 11 | 1.43.65 | 8 | Saul Ordóñez | | ESP | 3 | Monaco | 20-07-2018 |
| 12 | 1.43.73 | 9 | Ferguson Rotich | | KEN | 1 | Paris | 30-06-2018 |
| 13 | 1.43.77 | | Jonathan Kitilit | 3 | KEN | 1 | Hengelo | 03-06-2018 |
| 14 | 1.43.82 | 10 | Cornelius Tuwei | | KEN | 4 | Monaco | 20-07-2018 |
| 15 | 1.43.83 | | Jonathan Kitilit | 4 | KEN | 2 | Paris | 30-06-2018 |
| 16 | 1.43.91 | | Wyclife Kinyamal | 2 | KEN | 1 | Shanghai | 12-05-2018 |
| 17 | 1.43.91 | | Jonathan Kitilit | 5 | KEN | 5 | Monaco | 20-07-2018 |
| 18 | 1.43.95 | | Jonathan Kitilit | 6 | KEN | 2 | Shanghai | 12-05-2018 |
| 19 | 1.44.08 | | Ferguson Rotich | 2 | KEN | 1 | Székesfehérvár | 02-07-2018 |
| 20 | 1.44.08 | | Nijel Amos | 3 | BOT | 1 | Zagreb | 04-09-2018 |
| 21 | 1.44.15 | 11 | Elijah Manangoi | | KEN | 3 | Birmingham | 18-08-2018 |
| 22 | 1.44.18 | | Nijel Amos | 4 | BOT | 2 | Székesfehérvár | 02-07-2018 |
| 23 | 1.44.20 | 12 | Pierre-Ambroise Bosse | | FRA | 6 | Monaco | 20-07-2018 |
| 24 | 1.44.21i | | Emmanuel Korir | 3 | KEN | 1 | New York (The Armory) NY | 03-02-2018 |
| 25 | 1.44.21 | 13 | Joseph Deng | | AUS | 7 | Monaco | 20-07-2018 |
| 26 | 1.44.26 | | Ferguson Rotich | 3 | KEN | 2 | Nairobi | 23-06-2018 |
| 27 | 1.44.28 | 14 | Alfred Kipketer | | KEN | 1 | Tomblaine | 27-06-2018 |
| 28 | 1.44.32 | 15 | Marcin Lewandowski | | POL | 8 | Monaco | 20-07-2018 |
| 29 | 1.44.36 | | Saul Ordóñez | 2 | ESP | 3 | Paris | 30-06-2018 |
| 30 | 1.44.38 | | Jonathan Kitilit | 7 | KEN | 1 | Bellinzona | 18-07-2018 |
| 31 | 1.44.42 | 16 | Isaiah Harris | | USA | 4 | Paris | 30-06-2018 |
| 32 | 1.44.43 | | Marcin Lewandowski | 2 | POL | 2 | Zagreb | 04-09-2018 |
| 33 | 1.44.44 | | Saul Ordóñez | 3 | ESP | 1 | Huelva | 08-06-2018 |
| 34 | 1.44.44 | | Ferguson Rotich | 4 | KEN | 4 | Birmingham | 18-08-2018 |
| 35 | 1.44.50 | | Jonathan Kitilit | 8 | KEN | 3 | Zagreb | 04-09-2018 |
| 36 | 1.44.56 | 17 | Peter Bol | | AUS | 1 | Stockholm | 10-06-2018 |
| 37 | 1.44.59 | 18 | Adam Kszczot | | POL | 1 | Berlin | 11-08-2018 |
| 38 | 1.44.61 | | Joseph Deng | 2 | AUS | 2 | Stockholm | 10-06-2018 |
| 39 | 1.44.61 | 19 | Jake Wightman | | GBR | 5 | London | 22-07-2018 |
| 40 | 1.44.62 | | Alfred Kipketer | 2 | KEN | 5 | Paris | 30-06-2018 |
| 41 | 1.44.64 | | Jonathan Kitilit | 9 | KEN | 1 | Nairobi | 17-02-2018 |
| 42 | 1.44.64 | | Alfred Kipketer | 3 | KEN | 3 | Székesfehérvár | 02-07-2018 |
| 43 | 1.44.65 | | Nijel Amos | 5 | BOT | 1 | Stanford CA | 30-03-2018 |
| 44 | 1.44.65 | | Wyclife Kinyamal | 3 | KEN | 1 | Roma | 31-05-2018 |
| 45 | 1.44.66 | | Cornelius Tuwei | 2 | KEN | 4 | Zagreb | 04-09-2018 |
| 46 | 1.44.67 | | Joseph Deng | 3 | AUS | 6 | Paris | 30-06-2018 |
| 47 | 1.44.69 | | Clayton Murphy | 2 | USA | 4 | Székesfehérvár | 02-07-2018 |
| 48 | 1.44.72 | | Wyclife Kinyamal | 4 | KEN | 2 | Nairobi | 17-02-2018 |
| 49 | 1.44.72 | | Adam Kszczot | 2 | POL | 6 | London | 22-07-2018 |
| 50 | 1.44.72 | | Emmanuel Korir | 4 | KEN | 1 | Bruxelles | 31-08-2018 |
| 51 | 1.44.73 | 20 | Jackson Kivuva | | KEN | 3 | Nairobi | 23-06-2018 |
| 52 | 1.44.73 | 21 | Guy Learmonth | | GBR | 7 | London | 22-07-2018 |
| 53 | 1.44.74 | | Ferguson Rotich | 5 | KEN | 2 | Roma | 31-05-2018 |
| 54 | 1.44.74 | 22 | Timothy Cheruiyot | | KEN | 1 | Nairobi | 16-06-2018 |
| 55 | 1.44.75 | | Marcin Lewandowski | 3 | POL | 5 | Birmingham | 18-08-2018 |
| 56 | 1.44.76 | | Isaiah Harris | 2 | USA | 1 | Eugene OR | 08-06-2018 |
| 57 | 1.44.78 | | Jonathan Kitilit | 10 | KEN | 3 | Roma | 31-05-2018 |
| 58 | 1.44.90 | 23 | Mostafa Smaili | | MAR | 5 | Zagreb | 04-09-2018 |
| 59 | 1.44.91 | | Cornelius Tuwei | 3 | KEN | 3 | Nairobi | 17-02-2018 |
| 60 | 1.44.97 | | Joseph Deng | 4 | AUS | 2 | Hengelo | 03-06-2018 |
| 61 | 1.44.97 | 24 | Daniel Rowden | | GBR | 8 | London | 22-07-2018 |
| 62 | 1.44.97 | | Adam Kszczot | 3 | POL | 6 | Birmingham | 18-08-2018 |
| 63 | 1.44.99 | | Brandon McBride | 2 | CAN | 4 | Roma | 31-05-2018 |
| 64 | 1.44.99 | 25 | Álvaro de Arriba | | ESP | 2 | Huelva | 08-06-2018 |
| 65 | 1.44.99 | | Marcin Lewandowski | 4 | POL | 1 | Chorzów | 22-08-2018 |