All sub 1'45" performances from 2023
| # | Mark | SR | Athlete | IR | Nat | Pos | Venue | Date |
| 1 | 1.42.80 | 1 | Emmanuel Wanyonyi | | KEN | 1 | Eugene OR | 17-09-2023 |
| 2 | 1.42.85 | 2 | Marco Arop | | CAN | 2 | Eugene OR | 17-09-2023 |
| 3 | 1.43.06 | 3 | Djamel Sedjati | | ALG | 3 | Eugene OR | 17-09-2023 |
| 4 | 1.43.20 | | Emmanuel Wanyonyi | 2 | KEN | 1 | Xiamen | 02-09-2023 |
| 5 | 1.43.22 | 4 | Wyclife Kinyamal | | KEN | 1/A | Monaco | 21-07-2023 |
| 6 | 1.43.24 | | Marco Arop | 2 | CAN | 2 | Xiamen | 02-09-2023 |
| 7 | 1.43.27 | | Emmanuel Wanyonyi | 3 | KEN | 1 | Paris | 09-06-2023 |
| 8 | 1.43.30 | | Marco Arop | 3 | CAN | 2 | Paris | 09-06-2023 |
| 9 | 1.43.32 | | Emmanuel Wanyonyi | 4 | KEN | 1 | Nairobi | 13-05-2023 |
| 10 | 1.43.38 | 5 | Slimane Moula | | ALG | 3 | Paris | 09-06-2023 |
| 11 | 1.43.40 | | Djamel Sedjati | 2 | ALG | 4 | Paris | 09-06-2023 |
| 12 | 1.43.40 | | Slimane Moula | 2 | ALG | 2/A | Monaco | 21-07-2023 |
| 13 | 1.43.48 | 6 | Benjamin Robert | | FRA | 5 | Paris | 09-06-2023 |
| 14 | 1.43.51 | | Marco Arop | 4 | CAN | 3/A | Monaco | 21-07-2023 |
| 15 | 1.43.56 | | Wyclife Kinyamal | 2 | KEN | 6 | Paris | 09-06-2023 |
| 16 | 1.43.60 | | Djamel Sedjati | 3 | ALG | 1 | Bruxelles | 08-09-2023 |
| 17 | 1.43.66 | | Wyclife Kinyamal | 3 | KEN | 2 | Nairobi | 13-05-2023 |
| 18 | 1.43.83 | | Emmanuel Wanyonyi | 5 | KEN | 1/3 | Budapest | 24-08-2023 |
| 19 | 1.43.85 | 7 | Max Burgin | | GBR | 1 | London | 23-07-2023 |
| 20 | 1.43.88 | | Djamel Sedjati | 4 | ALG | 4/A | Monaco | 21-07-2023 |
| 21 | 1.43.88 | | Benjamin Robert | 2 | FRA | 3 | Xiamen | 02-09-2023 |
| 22 | 1.43.90 | 8 | Azeddine Habz | | FRA | 7 | Paris | 09-06-2023 |
| 23 | 1.43.92 | 9 | Adrián Ben | | ESP | 2/3 | Budapest | 24-08-2023 |
| 24 | 1.43.93 | | Slimane Moula | 3 | ALG | 1/1 | Budapest | 24-08-2023 |
| 25 | 1.43.94 | 10 | Yanis Meziane | | FRA | 2 | Bruxelles | 08-09-2023 |
| 26 | 1.43.94 | | Yanis Meziane | 2 | FRA | 4 | Eugene OR | 17-09-2023 |
| 27 | 1.43.95 | 11 | Daniel Rowden | | GBR | 5/A | Monaco | 21-07-2023 |
| 28 | 1.43.95 | 12 | Bryce Hoppel | | USA | 6/A | Monaco | 21-07-2023 |
| 29 | 1.43.99 | 13 | Joseph Deng | | AUS | 1 | Décines | 08-07-2023 |
| 30 | 1.44.02 | 14 | Ben Pattison | | GBR | 2 | London | 23-07-2023 |
| 31 | 1.44.02 | | Marco Arop | 5 | CAN | 1/2 | Budapest | 24-08-2023 |
| 32 | 1.44.03 | 15 | Tshepiso Masalela | | BOT | 3 | Bruxelles | 08-09-2023 |
| 33 | 1.44.04 | | Bryce Hoppel | 2 | USA | 3/3 | Budapest | 24-08-2023 |
| 34 | 1.44.04 | | Wyclife Kinyamal | 4 | KEN | 4 | Xiamen | 02-09-2023 |
| 35 | 1.44.07 | 16 | Kelvin Kimtai Loti | | KEN | 1 | Barcelona | 05-07-2023 |
| 36 | 1.44.09 | | Emmanuel Wanyonyi | 6 | KEN | 1 | Nairobi | 08-07-2023 |
| 37 | 1.44.12 | | Daniel Rowden | 2 | GBR | 4 | Bruxelles | 08-09-2023 |
| 38 | 1.44.14 | | Tshepiso Masalela | 2 | BOT | 2/1 | Budapest | 24-08-2023 |
| 39 | 1.44.21 | 17 | Alex Kipngetich | | KEN | 2 | Nairobi | 08-07-2023 |
| 40 | 1.44.21 | | Daniel Rowden | 3 | GBR | 5 | Eugene OR | 17-09-2023 |
| 41 | 1.44.23 | | Ben Pattison | 2 | GBR | 3/1 | Budapest | 24-08-2023 |
| 42 | 1.44.24 | | Marco Arop | 6 | CAN | 1 | Budapest | 26-08-2023 |
| 43 | 1.44.26 | 18 | Will Sumner | | USA | 1 | Austin TX | 09-06-2023 |
| 44 | 1.44.27 | | Djamel Sedjati | 5 | ALG | 1 | Montreuil | 31-05-2023 |
| 45 | 1.44.27 | | Daniel Rowden | 4 | GBR | 5 | Xiamen | 02-09-2023 |
| 46 | 1.44.28 | | Yanis Meziane | 3 | FRA | 6 | Xiamen | 02-09-2023 |
| 47 | 1.44.29 | 19 | Peter Bol | | AUS | 2 | Barcelona | 05-07-2023 |
| 48 | 1.44.29 | | Daniel Rowden | 5 | GBR | 1 | Lignano Sabbiadoro | 14-07-2023 |
| 49 | 1.44.30 | | Yanis Meziane | 4 | FRA | 7/A | Monaco | 21-07-2023 |
| 50 | 1.44.30 | 20 | Mateusz Borkowski | | POL | 4/1 | Budapest | 24-08-2023 |
| 51 | 1.44.30 | | Yanis Meziane | 5 | FRA | 4/3 | Budapest | 24-08-2023 |
| 52 | 1.44.32 | | Ben Pattison | 3 | GBR | 5 | Bruxelles | 08-09-2023 |
| 53 | 1.44.34 | 21 | Simone Barontini | | ITA | 5/3 | Budapest | 24-08-2023 |
| 54 | 1.44.35 | | Emmanuel Wanyonyi | 7 | KEN | 8/A | Monaco | 21-07-2023 |
| 55 | 1.44.35 | 22 | Mohamed Attaoui | | ESP | 5/1 | Budapest | 24-08-2023 |
| 56 | 1.44.36 | | Emmanuel Wanyonyi | 8 | KEN | 1 | Rabat | 28-05-2023 |
| 57 | 1.44.37 | | Bryce Hoppel | 3 | USA | 6 | Bruxelles | 08-09-2023 |
| 58 | 1.44.38 | | Benjamin Robert | 3 | FRA | 6/1 | Budapest | 24-08-2023 |
| 59 | 1.44.38 | | Wyclife Kinyamal | 5 | KEN | 7 | Bruxelles | 08-09-2023 |
| 60 | 1.44.40 | | Benjamin Robert | 4 | FRA | 1 | Turku | 13-06-2023 |
| 61 | 1.44.46 | 23 | Gabriel Tual | | FRA | 1 | Madrid | 22-07-2023 |
| 62 | 1.44.47 | 24 | Mohamed Ali Gouaned | | ALG | 1 | Strasbourg | 16-06-2023 |
| 63 | 1.44.48 | | Joseph Deng | 2 | AUS | 2 | Strasbourg | 16-06-2023 |
| 64 | 1.44.48 | | Peter Bol | 2 | AUS | 1 | Székesfehérvár | 18-07-2023 |
| 65 | 1.44.49 | | Djamel Sedjati | 6 | ALG | 2/2 | Budapest | 24-08-2023 |
| 66 | 1.44.50 | | Simone Barontini | 2 | ITA | 1 | Molfetta | 30-07-2023 |
| 67 | 1.44.52 | 25 | Abdellati El Guesse | | MAR | 1 | Ninove | 22-07-2023 |
| 68 | 1.44.53 | 26 | Tibo De Smet | | BEL | 2 | Ninove | 22-07-2023 |
| 69 | 1.44.53 | | Emmanuel Wanyonyi | 9 | KEN | 2 | Budapest | 26-08-2023 |
| 70 | 1.44.54 | 27 | Saul Ordóñez | | ESP | 7 | Xiamen | 02-09-2023 |
| 71 | 1.44.55 | | Bryce Hoppel | 4 | USA | 1 | Randalls Island NY | 24-06-2023 |
| 72 | 1.44.55 | | Gabriel Tual | 2 | FRA | 2 | Székesfehérvár | 18-07-2023 |
| 73 | 1.44.55 | | Abdellati El Guesse | 2 | MAR | 7/1 | Budapest | 24-08-2023 |
| 74 | 1.44.57 | 28 | Andreas Kramer | | SWE | 6/3 | Budapest | 24-08-2023 |
| 75 | 1.44.59 | | Djamel Sedjati | 7 | ALG | 1 | Stockholm | 02-07-2023 |
| 76 | 1.44.6 m | 29 | Abel Kipsang | | KEN | 1 | Gaborone | 29-04-2023 |
| 77 | 1.44.63 | | Bryce Hoppel | 5 | USA | 6 | Eugene OR | 17-09-2023 |
| 78 | 1.44.64 | | Marco Arop | 7 | CAN | 1 | Langley | 29-07-2023 |
| 79 | 1.44.65 | 30 | Edose Ibadin | | NGR | 1 | Washington DC | 30-07-2023 |
| 80 | 1.44.65 | | Gabriel Tual | 3 | FRA | 8 | Xiamen | 02-09-2023 |
| 81 | 1.44.67 | | Saul Ordóñez | 2 | ESP | 2 | Stockholm | 02-07-2023 |
| 82 | 1.44.67 | | Mohamed Attaoui | 2 | ESP | 3 | Barcelona | 05-07-2023 |
| 83 | 1.44.70 | 31 | Jesus López | | MEX | 1 | Castellón | 14-06-2023 |
| 84 | 1.44.70 | 32 | Cornelius Tuwei | | KEN | 2 | Madrid | 22-07-2023 |
| 85 | 1.44.70 | 33 | Navasky Anderson | | JAM | 2 | Washington DC | 30-07-2023 |
| 86 | 1.44.71 | 34 | Ferguson Rotich | | KEN | 3 | Nairobi | 08-07-2023 |
| 87 | 1.44.72 | | Adrián Ben | 2 | ESP | 3 | Madrid | 22-07-2023 |
| 88 | 1.44.73 | | Wyclife Kinyamal | 6 | KEN | 2 | Rabat | 28-05-2023 |
| 89 | 1.44.74 | 35 | Tom Dradiga | | UGA | 4 | Madrid | 22-07-2023 |
| 90 | 1.44.74 | | Saul Ordóñez | 3 | ESP | 3/2 | Budapest | 24-08-2023 |
| 91 | 1.44.75 | 36 | Clayton Murphy | | USA | 1 | Westwood CA | 27-05-2023 |
| 92 | 1.44.75 | 37 | Alex Botterill | | GBR | 3 | London | 23-07-2023 |
| 93 | 1.44.78 | | Yanis Meziane | 6 | FRA | 8 | Paris | 09-06-2023 |
| 94 | 1.44.78 | 38 | Niels Laros | | NED | 1/B | Monaco | 21-07-2023 |
| 95 | 1.44.79 | | Adrián Ben | 3 | ESP | 4 | Barcelona | 05-07-2023 |
| 96 | 1.44.79 | 39 | Catalin Tecuceanu | | ITA | 4/2 | Budapest | 24-08-2023 |
| 97 | 1.44.80 | | Tom Dradiga | 2 | UGA | 2 | Castellón | 14-06-2023 |
| 98 | 1.44.80 | 40 | Guy Learmonth | | GBR | 4 | London | 23-07-2023 |
| 99 | 1.44.83 | | Gabriel Tual | 4 | FRA | 5/2 | Budapest | 24-08-2023 |
| 100 | 1.44.83 | | Ben Pattison | 4 | GBR | 3 | Budapest | 26-08-2023 |
| 101 | 1.44.84 | | Saul Ordóñez | 4 | ESP | 8 | Bruxelles | 08-09-2023 |
| 102 | 1.44.85 | | Andreas Kramer | 2 | SWE | 9 | Paris | 09-06-2023 |
| 103 | 1.44.85 | | Saul Ordóñez | 5 | ESP | 1 | Ostrava | 27-06-2023 |
| 104 | 1.44.85 | | Gabriel Tual | 5 | FRA | 3 | Stockholm | 02-07-2023 |
| 105 | 1.44.85 | 41 | Isaiah Harris | | USA | 1 | Los Angeles CA | 22-07-2023 |
| 106 | 1.44.86 | 42 | Ermiyas Girma | | ETH | 2/B | Monaco | 21-07-2023 |
| 107 | 1.44.87 | 43 | Ephrem Mekonnen | | ETH | 1 | Forbach | 28-05-2023 |
| 108 | 1.44.87 | | Ben Pattison | 5 | GBR | 9 | Xiamen | 02-09-2023 |
| 109 | 1.44.88 | 44 | Thomas Randolph | | GBR | 5 | London | 23-07-2023 |
| 110 | 1.44.9 m | 45 | Tshepo Tshite | | RSA | 2 | Gaborone | 29-04-2023 |
| 111 | 1.44.90 | 46 | Pablo Sánchez-Valladares | | ESP | 3 | Castellón | 14-06-2023 |
| 112 | 1.44.90 | | Alex Kipngetich | 2 | KEN | 1 | Nairobi | 24-06-2023 |
| 113 | 1.44.91 | | Clayton Murphy | 2 | USA | 2 | Turku | 13-06-2023 |
| 114 | 1.44.91 | | Adrián Ben | 4 | ESP | 4 | Budapest | 26-08-2023 |
| 115 | 1.44.92 | | Cornelius Tuwei | 2 | KEN | 2 | Nairobi | 24-06-2023 |
| 116 | 1.44.92 | | Emmanuel Wanyonyi | 10 | KEN | 1/1 | Budapest | 22-08-2023 |
| 117 | 1.44.93 | | Joseph Deng | 3 | AUS | 9/A | Monaco | 21-07-2023 |
| 118 | 1.44.93 | | Mohamed Attaoui | 3 | ESP | 5 | Madrid | 22-07-2023 |
| 119 | 1.44.95 | | Andreas Kramer | 3 | SWE | 3 | Turku | 13-06-2023 |
| 120 | 1.44.95 | | Slimane Moula | 4 | ALG | 5 | Budapest | 26-08-2023 |
| 121 | 1.44.96 | | Wyclife Kinyamal | 7 | KEN | 4 | Nairobi | 08-07-2023 |
| 122 | 1.44.96 | 47 | Ethan Hussey | | GBR | 6 | London | 23-07-2023 |
| 123 | 1.44.96 | | Daniel Rowden | 6 | GBR | 1 | Zagreb | 10-09-2023 |
| 124 | 1.44.97 | | Andreas Kramer | 4 | SWE | 10 | Xiamen | 02-09-2023 |
| 125 | 1.44.98i | 48 | Noah Kibet | | KEN | 1 | New York (The Armory) NY | 11-02-2023 |
| 126 | 1.44.98 | 49 | Festus Lagat | | KEN | 2 | Westwood CA | 27-05-2023 |
| 127 | 1.44.98 | | Adrián Ben | 5 | ESP | 1 | Sotteville-lès-Rouen | 07-07-2023 |
| 128 | 1.44.99 | 50 | Timothy Cheruiyot | | KEN | 3 | Nairobi | 13-05-2023 |