| Lane | # | Athlete | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | 451 | SINCLAIR, RYLAN | PIPER |
51.36 | Blanche Ely Meet March 12 |
| 2 | 340 | JONES, ANTHONY | NORTHEAST (OP) |
51.02 | Southridge Spartan Invitational |
| 3 | 241 | THOMAS, DANIEL | PLANTATION |
49.70 | BCAA Week One - Blanche Ely |
| 4 | 27 | JOSEPH, RYAN | DILLARD |
48.97 | 2025 The Ellis Elite 16 Track and Field Invitational |
| 5 | 234 | THOMAS, JASON | PLANTATION |
49.05 | 2025 The Ellis Elite 16 Track and Field Invitational |
| 6 | 1 | SAPP, CEDRIC | DILLARD |
50.53 | Louie Bing Invitational |
| 7 | 353 | PERICLES, MYKERSON | NORTHEAST (OP) |
51.16 | BCAA Week One - Blanche Ely |
| 8 | 278 | LOSSE, GATSBY | FORT LAUDERDALE |
51.37 | 2025 The Ellis Elite 16 Track and Field Invitational |
| Lane | # | Athlete | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | 426 | SANDERS, BRANDON | TARAVELLA |
53.19 | 2025 The Ellis Elite 16 Track and Field Invitational |
| 2 | 290 | KING, KAMAL | FORT LAUDERDALE |
52.38 | 2025 The Ellis Elite 16 Track and Field Invitational |
| 3 | 295 | JOZAMA, VILA | FORT LAUDERDALE |
51.92 | BCAA Week Two - Fort Lauderdale |
| 4 | 401 | JAMEISON, BRANDON | TARAVELLA |
51.43 | 2025 River City Relays Track and Field Meet (High School) |
| 5 | 312 | MANCA, ALESSANDRO | FORT LAUDERDALE |
51.49 | 2025 River City Relays Track and Field Meet (High School) |
| 6 | 196 | AMEDEE, KYLE | BOYD ANDERSON |
52.13 | 2025 The Ellis Elite 16 Track and Field Invitational |
| 7 | 357 | SIMMONS, ISAIAH | NORTHEAST (OP) |
52.46 | Southridge Spartan Invitational |
| 8 | 509 | JEAN MARY, DOUDLEY | PIPER |
53.40 | Blanche Ely Meet March 12 |
| Lane | # | Athlete | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | 367 | RUSKIN JR, LLOYD | NORTHEAST (OP) |
55.73 | Blanche Ely Meet March 12 |
| 2 | 388 | BARCLAY, JADEN | TARAVELLA |
55.13 | BCAA Week Four - Flanagan |
| 3 | 472 | CLARKE, JABEZ | PIPER |
53.94 | Blanche Ely Meet March 04 |
| 4 | 122 | NICHOLSON, LORENZO | CARDINAL GIBBONS |
53.56 | Louie Bing Invitational |
| 5 | 459 | CHIN-SUER, JAHMANI | PIPER |
53.57 | Blanche Ely Meet March 12 |
| 6 | 411 | DILLON, TRAVIS | TARAVELLA |
54.43 | 2025 The Ellis Elite 16 Track and Field Invitational |
| 7 | 188 | HALL, CODY | CARDINAL GIBBONS |
55.59 | Louie Bing Invitational |
| 8 | 117 | CORREA-GARCIA, ELIAS | CARDINAL GIBBONS |
58.41 | BCAA Week Two - Fort Lauderdale |
| Lane | # | Athlete | Team | Seed | Note |
|---|---|---|---|---|---|
| 2 | 191 | PIERRE, NITENO | BOYD ANDERSON |
NT | NT |
| 3 | 201 | JEAN, DAVID | BOYD ANDERSON |
NT | NT |
| 4 | 172 | DENNIS, DEREK | CARDINAL GIBBONS |
58.91 | Coral Springs Regular Meet March 11 |
| 5 | 66 | CLAY, TYOPHY | DILLARD |
NT | NT |
| 6 | 52 | OATMAN, TEDDRICK | DILLARD |
NT | NT |