| Lane | Athlete | Team | Seed | Note |
|---|---|---|---|---|
| 1 | MATOS, Lionel | Lake Mary Prep | 55.08 | |
| 2 | VAN DE MEENE, Mark | Winter Park | 54.13 | Brian Jaeger Elite Classic 2019 |
| 3 | GALVAN-SANTOS, Carlos | Bishop Moore | 53.40 | Astronaut developmental meet #2 |
| 4 | BAPTISTE, Weston | Montverde Academy | 48.86 | 44th Annual Eagle Invitational |
| 5 | TIRADO BOCANEGRA, Ian | Winter Park | 52.68 | Bob Mosher Wildcat Open 2019 |
| 6 | ZHOU, Francisco | Lake Highland Prep | 54.00 | |
| 7 | ALVAREZ, Roberto | Mount Dora | 55.00 | |
| 8 | ELMATBAGI, Khalid | Oviedo | 55.11 | Saint Cloud Invitational 2019 |
| Lane | Athlete | Team | Seed | Note |
|---|---|---|---|---|
| 1 | GAYOSO, Tomas | Master's Academy (Oviedo) | 58.89 | Astronuat Preseason Classic |
| 2 | BIGNEY, Justin | Trinity Prep | 57.49 | Astronaut developmental meet #2 |
| 3 | WHITE, Cesar | Geneva School | 57.24 | Carl Friedland Memorial 2019 |
| 4 | JOACHIM, Lawens | Winter Park | 55.31 | Brian Jaeger Elite Classic 2019 |
| 5 | HOLIFIELD, Marvin | Lake Mary Prep | 55.94 | |
| 6 | VITITO, Christopher | Montverde Academy | 57.40 | 44th Annual Eagle Invitational |
| 7 | MILLER, Soloman | Lake Highland Prep | 58.00 | |
| 8 | L'HEUREUX, Justin | Hagerty | 58.99 | Larry Kelly Invitational 2019 |
| Lane | Athlete | Team | Seed | Note |
|---|---|---|---|---|
| 1 | VIHLEN, Alex | Lake Mary Prep | 1:01.22 | |
| 2 | GRAHAM, Johnny | Circle Christian | 1:00.16 | Larry Kelly Invitational 2019 |
| 3 | O'CONNOR, Bennett | Trinity Prep | 59.72 | Astronaut developmental meet #2 |
| 4 | SANTANA, Joseph | Mount Dora | 59.29 | Trinity Prep Invitational 2019 |
| 5 | MILLER, Joseph | Geneva School | 59.45 | Larry Kelly Invitational 2019 |
| 6 | PORTER, Jordan | Master's Academy (Oviedo) | 59.90 | Royal Open 2019 |
| 7 | ROBERTS, Antonio | Seminole (Sanford) | 1:00.29 | Highlander Invitational 2019 |
| 8 | COLLAZO, Sean | Tavares | 1:03.19 | Mount Dora Quad Meet 2 |
| Lane | Athlete | Team | Seed | Note |
|---|---|---|---|---|
| 1 | DURANT, Ronnie | Mount Dora | 1:10.50 | Mount Dora Quad Meet 2 |
| 2 | AHMAD, Taha | Lake Highland Prep | 1:04.44 | Brian Jaeger Elite Classic 2019 |
| 3 | DRISCOLL, Xavier | Trinity Prep | 1:03.70 | Astronaut developmental meet #2 |
| 4 | PONTES-REIS, Lucas | Lake Mary Prep | 1:03.19 | |
| 5 | VEGA, Sammy | Master's Academy (Oviedo) | 1:03.44 | Astronuat Preseason Classic |
| 6 | HYNES, Andrew | Circle Christian | 1:04.30 | Trinity Prep Invitational 2019 |
| 7 | CAPPS, Jacob | Circle Christian | 1:04.52 | Satellite High Invitational |
| 8 | PATEL, Sahil | Oviedo | 1:11.04 | SAC Freshman-Sophomore Championship 2019 |
| Lane | Athlete | Team | Seed | Note |
|---|---|---|---|---|
| 1 | BIGGHAM, Dwayne | Jones | NT | |
| 2 | WELCH, Zachary | Tavares | NT | |
| 3 | ISLAM, Sajhon | Hagerty | NT | |
| 4 | LOFTUS, Liam | Tavares | 1:12.56 | Mount Dora Quad Meet 2 |
| 5 | EGGLESTON, Leland | Bishop Moore | NT | |
| 6 | BARAT, Eliot | Hagerty | NT | |
| 7 | RISBROOK, Quentin | Lake Mary Prep | NT | |
| 8 | SHIRCLIFF, John | Bishop Moore | NT |