| W | World | 46.78 | Kevin Young | USA | 8/6/1992 | Barcelona, ESP |
| U | American | 46.78 | Kevin Young | Foot Locker AC | 8/6/1992 | |
| C | College Outdoor | 47.56 | Kerron Clement | Florida | 6/11/2005 | Sacramento, CA |
| I | IC4A | 54.00 | ||||
| N | NEC championship | 51.54 | Jim Baughman | Robert Morris | 2000 |
| Athlete | Yr. | Team | Seed | |
|---|---|---|---|---|
| 1 | WOODS, JULIAN | SR | MOUNT ST. MARY'S | 51.72 |
| 2 | CAJUSTE, KARL | SR | LIU BROOKLYN | 53.86 |
| 3 | JACKSON, DASHAUN | SO | SAINT FRANCIS (PA.) | 55.22 |
| 4 | BARTLEY JR, FRANKLIN | SO | CENTRAL CONNECTICUT | 55.74 |
| 5 | SANCHEZ, QUINCY | SO | CENTRAL CONNECTICUT | 56.07 |
| 6 | LATHAM, TYLER | JR | CENTRAL CONNECTICUT | 56.09 |
| 7 | CARROLL, KHAILEN | SO | SAINT FRANCIS (PA.) | 58.04 |
| 8 | BROWN JR, ALI | FR | SAINT FRANCIS (PA.) | 58.55 |
| 9 | KELLEHER, BRYAN | SO | SACRED HEART | 59.59 |
| 10 | CLEVELAND, EVAN | FR | SACRED HEART | 59.63 |
| 11 | DELACRUZ, DIEGO | SR | ST. FRANCIS (N.Y.) | 1:00.35 |
| 12 | WALKER-KHAN, ADAM | SR | LIU BROOKLYN | NT |
| 13 | NELSON, TOBIAS | JR | LIU BROOKLYN | NT |
| 14 | RIBEIRO, WILL | JR | CENTRAL CONNECTICUT | NT |
| 15 | ALSTON, EDWIN | SO | CENTRAL CONNECTICUT | NT |
| 16 | ST CLAIR, JACK | FR | CENTRAL CONNECTICUT | NT |
| 17 | SCHWANNECKE, THOMAS | SR | WAGNER | NT |
| Athlete | Yr. | Team | Seed | |
|---|---|---|---|---|
| 1 | WOODS, JULIAN | SR | MOUNT ST. MARY'S | 51.72 |
| 2 | CAJUSTE, KARL | SR | LIU BROOKLYN | 53.86 |
| 3 | JACKSON, DASHAUN | SO | SAINT FRANCIS (PA.) | 55.22 |
| 4 | BARTLEY JR, FRANKLIN | SO | CENTRAL CONNECTICUT | 55.74 |
| 5 | SANCHEZ, QUINCY | SO | CENTRAL CONNECTICUT | 56.07 |
| 6 | LATHAM, TYLER | JR | CENTRAL CONNECTICUT | 56.09 |
| 7 | CARROLL, KHAILEN | SO | SAINT FRANCIS (PA.) | 58.04 |
| 8 | BROWN JR, ALI | FR | SAINT FRANCIS (PA.) | 58.55 |
| 9 | KELLEHER, BRYAN | SO | SACRED HEART | 59.59 |
| 10 | CLEVELAND, EVAN | FR | SACRED HEART | 59.63 |
| 11 | DELACRUZ, DIEGO | SR | ST. FRANCIS (N.Y.) | 1:00.35 |
| 12 | WALKER-KHAN, ADAM | SR | LIU BROOKLYN | NT |
| 13 | NELSON, TOBIAS | JR | LIU BROOKLYN | NT |
| 14 | RIBEIRO, WILL | JR | CENTRAL CONNECTICUT | NT |
| 15 | ALSTON, EDWIN | SO | CENTRAL CONNECTICUT | NT |
| 16 | ST CLAIR, JACK | FR | CENTRAL CONNECTICUT | NT |
| 17 | SCHWANNECKE, THOMAS | SR | WAGNER | NT |