| Place | Time | Swimmer (Yr) | School | City | State |
| 1 | :43.37 | Blake Pieroni (12) | Chesterton High School | Chesterton | IN |
| 2 | :43.70 | Justin Plaschka (12) | Hauppauge High School | Hauppauge | NY |
| 3 | :43.72 | Joseph Schooling (12) | The Bolles School | Jacksonville | FL |
| 4 | :43.73 | Ryan Held (12) | Sacred Heart-Griffin High School | Springfield | IL |
| 5 | :43.87 | Ryan Hoffer (9 ) | Chaparral High School | Scottsdale | AZ |
| 6 | :43.90 | Tabahn Afrik (11) | Holland West Ottawa High School | Holland | MI |
| 6 | :43.90 | Edward Kim (12) | Eastlake High School | Sammamish | WA |
| 8 | :43.97 | Cole Cogswell (11) | William S. Hart High School | Newhall | CA |
| 8 | :43.97 | Jacob Molacek (12) | Creighton Preparatory School | Omaha | NE |
| 10 | :44.00 | Hennessey Stuart (12) | Regis Jesuit High School | Aurora | CO |
| 11 | :44.03 | Kyle Gornay (12) | Redlands High School | Redlands | CA |
| 12 | :44.16 | Alexander Lewis (12) | Greenwich High School | Greenwich | CT |
| 13 | :44.18 | Zachary Buerger (12) | North Allegheny Senior High School | Wexford | PA |
| 13 | :44.18 | Kyle Coan (12) | Los Osos High School | Rancho Cucamonga | CA |
| 15 | :44.25 | Andrew Liang (12) | Palo Alto High School | Palo Alto High School | CA |
| 16 | :44.26 | Grant House (9 ) | Saint Xavier High School | Cincinnati | OH |
| 16 | :44.26 | Nicholas Magana (12) | Desert Mountain High School | Scottsdale | AZ |
| 18 | :44.29 | Maxime Rooney (10) | Granada High School | Livermore | CA |
| 19 | :44.34 | Ryan Nicholson (12) | Ithaca High School | Ithaca | NY |
| 20 | :44.39 | Michael Jensen (10) | Upper Dublin High School | Fort Washington | PA |
| 21 | :44.53 | Kyle White (12) | Cheyenne Central High School | Cheyenne | WY |
| 22 | :44.67 | Greg Brocato (10) | LaSalle College High School | Wyndmoor | PA |
| 23 | :44.69 | Kyle DeCoursey (11) | Zionsville Community High School | Zionsville | IN |
| 24 | :44.70 | Tristan Sanders (12) | Palm Harbor University High School | Palm Harbor | FL |
| 25 | :44.74 | Nick Bigot (12) | Terra Linda High School | San Rafael | CA |
| 25 | :44.74 | John Magnus Holler (11) | Cibola High School | Albuquerque | NM |
| 27 | :44.76 | Christian Selby (12) | The Baylor School | Chattanooga | TN |
| 28 | :44.77 | Connor Stirling (11) | Cactus Shadows High School | Cave Creek | AZ |
| 29 | :44.81 | Ali Khalafalla (12) | Fork Union Military Academy | Fork Union | VA |
| 30 | :44.86 | Kevin Wylder (12) | Granite Bay High School | Granite Bay | CA |
| 31 | :44.88 | Brandon McCredie (12) | Council Rock High School-North | Newtown | PA |
| 32 | :44.96 | Nick Silverthorn (12) | Granada High School | Livermore | CA |
| 33 | :44.97 | Jonathan Roberts (12) | Southlake Carroll High School | Southlake | TX |
| 33 | :44.97 | Quinn Smith (12) | Deerfield Academy | Deerfield | MA |
| 35 | :45.00 | Mark McGlaughlin (10) | Iowa City West High School | Iowa City | IA |
| 35 | :45.00 | Gabe Ostler (12) | Miramonte High School | Orinda | CA |
| 35 | :45.00 | Brady Welch (12) | Our Lady Of Good Counsel | Olney | MD |
| 38 | :45.01 | Patrick Park (12) | The Peddie School | Hightstown | NJ |
| 39 | :45.02 | Patrick Conaton (12) | Fordham Preparatory School | Bronx | NY |
| 40 | :45.03 | Wesley Olmsted (12) | Eastside High School | Gainesville | FL |
| 41 | :45.05 | Sean Bloore (12) | Monte Vista High School | Danville | CA |
| 42 | :45.06 | Davidmichael Bernal (12) | Cinco Ranch High School | Katy | TX |
| 43 | :45.09 | William Beard (10) | Malvern Preparatory School | Malvern | PA |
| 44 | :45.12 | Aaron Brysch (12) | Louis D. Brandeis High School | San Antonio | TX |
| 44 | :45.12 | Kevin Dai (10) | Valencia High School | Valencia | CA |
| 46 | :45.14 | Nathan Christian (12) | Saint Ignatius High School | Cleveland | OH |
| 47 | :45.15 | Miles MacKenzie (12) | Fairview High School | Boulder | CO |
| 48 | :45.21 | Trevor Lake (11) | Bay High School | Bay Village | OH |
| 49 | :45.22 | Ben Ho (10) | Saint Francis High School | Mountain View | CA |
| 49 | :45.22 | Brad Zdroik (11) | Hillsborough High School | Hillsborough | NJ |
| 51 | :45.23 | JP Beach (12) | Douglas County High School | Castle Rock | CO |
| 52 | :45.25 | Timothy Martin (12) | Jeffersonville High School | Jeffersonville | IN |
| 53 | :45.26 | Michael Wang (11) | Rowland High School | Rowland Heights | CA |
| 54 | :45.27 | Luke Georgiadis (12) | The Bolles School | Jacksonville | FL |
| 55 | :45.28 | William Hofstadter (11) | University High School | Irvine | CA |
| 55 | :45.28 | Ryan Owens (11) | Daniel Boone High School | Birdsboro | PA |
| 55 | :45.28 | Brian Portland (11) | Hinsdale Central High School | Hinsdale | IL |
| 58 | :45.29 | Matthew Harrington (11) | Libertyville High School | Libertyville | IL |
| 59 | :45.30 | Jonathan Knox (12) | Analy High School | Sebastopol | CA |
| 60 | :45.31 | Hunter Bains (12) | Lewis-Palmer High School | Monument | CO |
| 61 | :45.33 | Joseph Krause (12) | Brother Rice High School | Bloomfield Hills | MI |
| 61 | :45.33 | Philip Perdue (12) | J. H. Rose High School | Greenville | NC |
| 61 | :45.33 | Grant Shoults (10) | Santa Margarita Catholic High School | Rancho Santa Margarita | CA |
| 64 | :45.35 | Ryan Peters (12) | Countryside High School | Clearwater | FL |
| 65 | :45.36 | Brian Lovasik (11) | North Hills High School | Pittsburgh | PA |
| 66 | :45.37 | Albert Gwo (10) | Los Altos High School | Los Altos | CA |
| 67 | :45.38 | Cameron Craig (10) | Monroe High School | Monroe | MI |
| 67 | :45.38 | Sean Tate (11) | Creighton Preparatory School | Omaha | NE |
| 69 | :45.40 | Alex Hardwick (12) | Upper St. Clair High School | Pittsburgh | PA |
| 70 | :45.43 | John Myhre (12) | Webb School Of Knoxville | Knoxville | TN |
| 71 | :45.45 | Jason Head (10) | Keller Central High School | Keller | TX |
| 71 | :45.45 | James Murphy (10) | Robinson Secondary School | Fairfax | VA |
| 73 | :45.47 | Mate Kovacs (11) | Penn High School | Mishawaka | IN |
| 73 | :45.47 | Leonardo Sanchez (11) | Eastwood High School | El Paso | TX |
| 75 | :45.48 | Grant Goddard (11) | Georgetown Preparatory School | North Bethesda | MD |
| 76 | :45.51 | Riley Hickman (11) | Davis Senior High School | Davis | CA |
| 76 | :45.51 | Mason Miller (11) | Westerville North High School | Westerville | OH |
| 78 | :45.52 | Walker Higgins (10) | Smoky Mountain Home Education Association | Knoxville | TN |
| 79 | :45.54 | Nick Burdo (10) | Liverpool High School | Liverpool | NY |
| 80 | :45.58 | Keegan Shuping (12) | Jesuit High School | Carmichael | CA |
| 81 | :45.61 | Corey John (12) | Loyola High School | Los Angeles | CA |
| 81 | :45.61 | Harrison Pierce (12) | Princess Anne High School | Va Beach | VA |
| 83 | :45.63 | Nick Arakelian (12) | Stevenson High School | Livonia | MI |
| 83 | :45.63 | Sterg Dikos (12) | Governor Mifflin High School | Shillington | PA |
| 85 | :45.64 | Samuel Loescher (12) | Columbus North High School | Columbus | IN |
| 85 | :45.64 | Curtis Ogren (12) | Saint Francis High School | Mountain View | CA |
| 87 | :45.65 | Phil Emerson (12) | Franklin High School | Franklin | PA |
| 88 | :45.66 | Jason Jung (9 ) | Westford Academy | Westford | MA |
| 88 | :45.66 | Zach Kantz (12) | Bangor High School | Bangor | PA |
| 90 | :45.67 | John Colin (10) | Dubuque Senior High School | Dubuque | IA |
| 90 | :45.67 | Adrian Lin (11) | Georgetown Preparatory School | North Bethesda | MD |
| 92 | :45.68 | Alex Katz (12) | Riverview High School | Sarasota | FL |
| 93 | :45.69 | Sam Gorham (10) | West Des Moines Valley High School | West Des Moines | IA |
| 93 | :45.69 | John Mooers (12) | Walt Whitman High School | Bethesda | MD |
| 93 | :45.69 | James Tidd (11) | East Ridge High School | Woodbury | MN |
| 96 | :45.70 | Jack Blake (9 ) | Brophy College Preparatory | Phoenix | AZ |
| 97 | :45.71 | James Jones (10) | Robinson Secondary School | Fairfax | VA |
| 97 | :45.71 | John Schihl (12) | Bloomfield Hills High School | Bloomfield Hills | MI |
| 99 | :45.75 | Alexander Rehnberg (12) | Edina High School | Edina | MN |
| 100 | :45.77 | Michael Forbes (12) | Los Osos High School | Rancho Cucamonga | CA |