American Junior Records are those ratified by USATF. Junior Records are restricted to athletes who do not turn 20 at any time during the calendar year in which the mark is made.
Symbols: + = event not officially recognized by USATF; (A) = altitude-aided mark–over 1000m of altitude (in affected events only); i = made indoors; p = mark still pending ratification
| Track Events | |||||
| 100 | 9.92 | Tate Taylor (Texas HS) | Austin, Texas | 5/03/25 | |
| 9.92 | Maurice Gleaton (Georgia HS) | Austin, Texas | 8/01/25 | ||
| 200 | 19.69 | Erriyon Knighton (adidas) | Eugene, Oregon | 6/26/22 | |
| (note: statistically acceptable 19.49 by Knighton ’22 never ratified) | |||||
| 400 | 43.87 | Steve Lewis (UCLA) | Seoul, South Korea | 9/28/88 | |
| 600+ | 1:15.49i | Brandon Miller (Texas A&M) | Fayetteville, Arkansas | 12/03/21 | |
| 800 | 1:42.27 | Cooper Lutkenhaus (Texas HS) | Eugene, Oregon | 8/03/25 | |
| 1:42.08p | Cooper Lutkenhaus (Nike) | Oslo, Norway | 6/10/26 | ||
| 1000+ | 2:.16.46 | Hobbs Kessler (adidas) | Fontvieille, Monaco | 8/10/22 | |
| 1500 | 3:34.36 | Hobbs Kessler (Michigan HS) | Portland, Oregon | 5/29/21 | |
| Mile | 3:51.3 | Jim Ryun (Kansas) | Berkeley, California | 7/17/66 | |
| Steeple | 8:33.8 | John Gregorek (Georgetown) | Philadelphia, Pennsylvania | 5/20/79 | |
| 3000 | 7:49.16 | Galen Rupp (Oregon) | Lignano, Italy | 7/17/05 | |
| 5000 | 13:24.26 | Nico Young (Northern Arizona) | Des Moines, Iowa | 4/23/21 | |
| [note: indoor 13:22.59 by Young in ’21 not ratifiable] | |||||
| 10,000 | 28:18.52 | Galen Rupp (Oregon) | Eugene, Oregon | 5/07/05 | |
| 110 Hurdles | 13.05 | Ja’kobe Tharp (Auburn) | Lima, Peru | 8/30/24 | |
| 13.04p | Ja’Shaun Lloyd (Texas State) | Eugene, Oregon | 6/18/26 | ||
| 12.95p | Le’Ezra Brown (Georgia) | Eugene, Oregon | 6/18/26 | ||
| 12.89p | Le’Ezra Brown (Georgia) | Eugene, Oregon | 8/07/26 | ||
| 12.72p | Le’Ezra Brown (Georgia) | Eugene, Oregon | 8/09/26 | ||
| Senior 110H+ | 13.18 | Ja’Kobe Tharp (Auburn) | Gainesville, Florida | 5/10/24 | |
| 13.18 | Ja’Kobe Tharp (Auburn) | Eugene, Oregon | 6/05/24 | ||
| 400 Hurdles | 47.85 | Sean Burrell (LSU) | Eugene, Oregon | 6/11/21 | |
| Relay Events | ||||
| 4 x 100 | 38.62(A) | National Junior Team | San José, Costa Rica | 7/20/19 |
| (Arian Smith, Justin Ofotan, Marcellus Moore, Matthew Boling) | ||||
| 38.16p | National Team | Eugene, Oregon | 8/09/26 | |
| (Blake Hamilton 10.54, Dillon Mitchell 9.17, Kyler Brown 9.70, Tate Taylor 8.75) | ||||
| (low-altitude)+ | 38.66 | National Team | Grossetto, Italy | 7/18/04 |
| (David Kimmons, Demi Omole, Ivory Williams, LaShawn Merritt) | ||||
| Mixed-Sex 4 x 100 | 41.82p | National Team | Eugene, Oregon | 8/06/26 |
| (Cy Lugo 10.73, Ahlayna Taylor 10.80, Nicholas Altheimer 9.76, Aster Jones 10.53) | ||||
| 41.39p | National Team | Eugene, Oregon | 8/08/26 | |
| (Cy Lugo 10.72, Ahlayna Taylor 10.82, Nicholas Altheimer 9.64, Ava Kitchings 10.21) | ||||
| 4 x 400 | 2:59.30(A) | National Junior Team | San José, Costa Rica | 7/21/19 |
| (Frederick Lewis 45.9, Matthew Boling 44.5, Matthew Moorer 45.2, Justin Robinson 43.7) | ||||
| (low-altitude )+ | 3:00.33 | National Team | Trujillo, Peru | 7/23/17 |
| (Brian Herron 45.1, Zach Shinnick 45.1, Sean Hooper 44.73, Josephus Lyles 45.36) | ||||
| Mixed-Sex 4 x 400 | 3:17.69 | National Junior Team | Cali, Colombia | 8/02/22 |
| (Charlie Bartholomew 45.09, Madison Whyte 53.39, Will Sumner 45.97, Kennedy Wade 53.24) | ||||
| 3:15.61p | National Team | Eugene, Oregon | 8/08/26 | |
| (Joshua Shelton 46.22, Taylor Nicole Overton 51.70, Jaelen Hunter 45.57, Olivia Harris 51.82) | ||||
| Field Events | ||||
| High Jump | 2.31 | 7-7 | Andra Manson (Texas HS) | Kingston, Jamaica | 7/18/02 |
| Pole Vault | 6.05 | 19-10¼ | Mondo Duplantis (Louisiana HS) | Berlin, Germany | 8/12/18 |
| Long Jump | 8.34 | 27-4½ | Randy Williams (USC) | Munich, Germany | 9/08/72 |
| Triple Jump | 17.13 | 56-2½ | Will Claye (Oklahoma) | Fayetteville, Arkansas | 6/13/09 |
| Shot | 22.06 | 72-4½ | Tripp Piperi (Texas) | Tampere, Finland | 7/10/18 |
| Senior Shot+ | 20.65 | 67-9 | Michael Carter (Texas HS) | Boston, Massachusetts | 7/04/79 |
| Discus | 65.34 | 214-4 | Mason Finley (Colorado HS) | Port-of-Spain, Trinidad | 7/31/09 |
| 66.39 | 217-9p | Simon Rosselli (Mead, Spokane, Washington) | Eugene, Oregon | 8/09/26 | |
| Senior Discus+ | 63.22 | 207-5 | Brian Milne (Penn State) | University Park, Pennsylvania | 3/28/92 |
| Hammer | 80.79 | 265-0 | Conor McCullough (Princeton) | Moncton, New Brunswick | 7/25/10 |
| Senior Hammer+ | 70.78 | 232-3 | Conor McCullough (Princeton) | Princeton, New Jersey | 5/15/10 |
| Javelin | 74.64 | 244-10 | Joe Zimmerman (Washington) | Moncton, New Brunswick | 7/23/10 |
| [note: statistically acceptable 77.84/255-4 by Sam Crouser in ’10 never ratified] | ||||
| Multi-Events | ||||
| Decathlon | 8037 | Harrison Williams (Stanford) | Edmonton, Alberta | 7/31–8/01/15 |
| (10.67w, 6.98/22-10¾, 13.71/44-11¾, 2.03/6-8, 48.28 [4182], 14.41, 39.68/130-2, 5.00/16-4¾, 51.77/169-10, 4:29.20 [3855]) | ||||
| Senior Decathlon+ | 7892 | Gunnar Nixon (Arkansas) | Des Moines, Iowa | 6/06–07/12 |
| (10.93w, 23-9½/7.25, 45-½/13.73, 6-8¾/2.05, 48.92 [4177], 14.51, 119-8/36.48, 15-1/4.60, 184-1/56.12, 4:30.41 [3715]) | ||||
| Road Event | ||||
| Marathon+ | 2:15:28 | Paul Gompers (Harvard) | Huntsville, Alabama | 12/10/83 |
| Walk Events | ||||
| 5000 | 20:06.0 | Trevor Barron (South Park TC) | San Diego, California | 6/13/10 |
| 5K(r) | 21:05 | Trevor Barron (New York AC) | Eugene, Oregon | 6/26/11 |
| 10,000 | 41:23.14 | Tyler Sorenson (California HS) | Villeneuve-d’Ascq, France | 7/09/11 |
| 10K(r) | 41:35 | Trevor Barron (New York AC) | Eugene, Oregon | 6/26/11 |
| 20,000 | 1:23:49.4 | Trevor Barron (South Park TC) | Tusula, Finland | 9/04/10 |
| 20K(r) | 1:23:26 | Trevor Barron (New York AC) | Eugene, Oregon | 6/26/11 |
as of August 12, 2026