| W | World Outdoor 2026 | 43.03 | Wayne van Niekerk | RSA | 8/14/2016 | Rio de Jameiro, BRA |
| A | American Outdoor 2026 | 43.18 | Michael Johnson | Nike | 8/26/1999 | Seville, ESP |
| C | College Outdoor 2026 | 43.61 | Michael Norman | So. California | 6/8/2018 | Eugene, OR |
| N | NEC championship | 45.91 | Richard James | Long Island | 2003 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 1 | PHILLIP, KYMOY | SR | CENTRAL CONNECTICUT |
49.82 |
| 2 | NALLEY, KAIDYN | FR | NEW HAVEN |
49.78 |
| 3 | ZAJDEL, CHRISTOPHER | JR | LE MOYNE |
DNS |
| 4 | DOUGHERTY, JACK | JR | STONEHILL |
49.21 |
| 5 | FIGUEIREDO, LUCAS | SO | CENTRAL CONNECTICUT |
47.79 |
| 6 | TATIS, JULIO | SO | WAGNER |
48.73 |
| 7 | GRESHAM, JOSHUA | SO | FDU |
49.34 |
| 8 | PARTRIDGE, OWEN | FR | STONEHILL |
49.74 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 2 | SCHREIER, HOLDEN | FR | SAINT FRANCIS |
54.32 |
| 3 | NALLEY, KAIDYN | FR | NEW HAVEN |
48.87 |
| 4 | SHERIDAN, KAI | SO | CHICAGO STATE |
50.13 |
| 5 | DESAI, LEKH | SR | LIU |
50.43 |
| 6 | RICHARDSON, LANGSTON | SR | LIU |
51.15 |
| 7 | DOUGHERTY, JACK | JR | STONEHILL |
48.47 |
| 8 | ROBINSON, PRAXTON | FR | CHICAGO STATE |
52.04 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 2 | HARRIS, CALEB | FR | CENTRAL CONNECTICUT |
50.23 |
| 3 | BATES II, CORY | FR | CENTRAL CONNECTICUT |
51.20 |
| 4 | PHILLIPS, KYJAHMY | SR | LIU |
54.89 |
| 5 | PHILLIP, KYMOY | SR | CENTRAL CONNECTICUT |
48.52 |
| 6 | ZAJDEL, CHRISTOPHER | JR | LE MOYNE |
48.56 |
| 7 | HICKS, JUSTICE | SO | FDU |
50.41 |
| 8 | WILMARTH, COLIN | FR | NEW HAVEN |
51.73 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 2 | SINGH, ARJANVIR | JR | WAGNER |
49.29 |
| 3 | AKINOLA, DAVID | SO | WAGNER |
52.59 |
| 4 | CANTANZANO, SALVATORE | FR | NEW HAVEN |
52.98 |
| 5 | FIGUEIREDO, LUCAS | SO | CENTRAL CONNECTICUT |
46.75 |
| 6 | PERSING, TYLER | SO | SAINT FRANCIS |
49.63 |
| 7 | BEGLEY, CAM | FR | STONEHILL |
50.50 |
| 8 | MULHOLLAND, OWEN | FR | LE MOYNE |
50.64 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 2 | MASSINGALE, NATHANIEL | FR | NEW HAVEN |
50.07 |
| 3 | HINKSON, TYTAN | FR | SAINT FRANCIS |
50.45 |
| 4 | HITCHCOCK, TREVOR | SR | NEW HAVEN |
52.52 |
| 5 | ABDELAZIZ, OMAR | SR | WAGNER |
53.35 |
| 6 | GIBBS, JARELL | FR | CENTRAL CONNECTICUT |
50.98 |
| 7 | BROWN, JAYDEN | SO | CENTRAL CONNECTICUT |
49.14 |
| 8 | TATIS, JULIO | SO | WAGNER |
47.88 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 2 | DELPESCE, SAL | FR | WAGNER |
52.58 |
| 3 | GRESHAM, JOSHUA | SO | FDU |
47.83 |
| 4 | MARTIN, CLIFTON | FR | CHICAGO STATE |
53.08 |
| 5 | ANDERSON, MATT | SO | STONEHILL |
50.93 |
| 6 | PARTRIDGE, OWEN | FR | STONEHILL |
49.16 |
| 7 | QUENTIN , PRATT-ADAMS | JR | FDU |
50.47 |
| 8 | AJAEGBULEMH, CHUKWUEMEKA | FR | FDU |
50.02 |