World Junior Records are those officially ratified by World Athletics. 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 WA; (A) = altitude-aided mark—over 1000m of altitude (in affected events only); i = made indoors; p = mark still pending ratification
Letsile Tebogo (Botswana)Eugene, Oregon7/15/22
| 100 | 9.91 | Letsile Tebogo (Botswana) | Cali, Colombia | 8/02/22 |
| 200 | 19.49 | Erriyon Knighton (US) | Baton Rouge, Louisiana | 4/30/22 |
| 300+ | 31.61 | Clarence Munyai (South Africa) | Ostrava, Czech Republic | 6/28/17 |
| 400 | 43.87 | Steve Lewis (US) | Seoul, South Korea | 9/28/88 |
| 800 | 1:41.73 | Nijel Amos (Botswana) | London, England | 8/09/12 |
| 1000 | 2:15.00 | Benjamin Kipkurui (Kenya) | Nice, France | 7/17/99 |
| 1500 | 3:28.81 | Ronald Kwemoi (Kenya) | Fontvieille, Monaco | 7/18/14 |
| Mile | 3:49.29 | William Biwott (Kenya) | Oslo, Norway | 7/03/09 |
| (now represents Turkey as İlham Tanui Özbilen) | ||||
| 2000+ | 4:56.25 | Tesfaye Cheru (Ethiopia) | Reims, France | 7/05/11 |
| 2000St+ | 5:19.99 | Meresa Kassaye (Ethiopia) | Donets’k, Ukraine | 7/12/13 |
| Steeple | 7:58.66 | Stephen Cherono (Kenya) | Brussels, Belgium | 8/24/01 |
| 3000 | 7:28.19 | Yomif Kejelcha (Ethiopia) | St.-Denis, France | 8/27/16 |
| 2 Miles+ | 8:08.69 | Selemon Barega (Ethiopia) | Stanford, California | 6/30/19 |
| 5000 | 12:43.02 | Selemon Barega (Ethiopia) | Brussels, Belgium | 8/31/18 |
| 10,000 | 26:41.75 | Sammy Wanjiru (Kenya) | Brussels, Belgium | 6/28/05 |
| 110 Hurdles | 12.72(A) | Sasha Zhoya (France) | Kasarani, Kenya | 8/21/21 |
| (low-altitude)+ | 12.99 | Wilhem Belocian (France) | Eugene, Oregon | 7/24/14 |
| 12.99 | Damion Thomas (Jamaica) | Kingston, Jamaica | 6/23/18 | |
| Senior 110 Hurdles+ | 13.12 | Xiang Liu (China) | Lausanne, Switzerland | 7/02/02 |
| 400 Hurdles | 47.85 | Sean Burrell (US) | Eugene, Oregon | 6/11/21 |
| Relay Events | ||||
| 4 x 100 | 38.51(A) | South Africa | Kasarani, Kenya | 8/22/21 |
| (Mihlali Xotyeni, Sinesipho Dambile, Lucky Moleyane, Benji Richardson) | ||||
| (low-altitude)+ | 38.66 | United States Juniors | Grosseto, Italy | 7/18/04 |
| (Trell Kimmons, Demi Omole, Ivory Williams, LaShawn Merritt) | ||||
| 4 x 400 | 2:59.30(A) | United States Juniors | 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 | United States Juniors | 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 | United States | Cali, Colombia | 8/02/22 |
| (Charlie Bartholomew 45.09, Madison Whyte 53.39, Will Sumner 45.97, Kennedy Wade 53.24) | ||||
| Field Events | ||||
| High Jump | 2.37 | 7-9¼ | Dragutin Topić (Yugoslavia) | Plovdiv, Bulgaria | 8/12/90 |
| 2.37 | 7-9¼ | Steve Smith (Great Britain) | Seoul, South Korea | 9/20/92 | |
| Pole Vault | 6.05 | 19-10¼ | Mondo Duplantis (Sweden) | Berlin, Germany | 8/12/18 |
| Long Jump | 8.35 | 27-4¾ | Sergey Morgunov (Russia) | Cheboksary, Russia | 6/20/12 |
| Triple Jump | 17.50 | 57-5 | Volker Mai (East Germany) | Erfurt, Germany | 6/23/85 |
| Shot | 23.00 | 75-5½ | Jacko Gill (New Zealand) | Auckland, New Zealand | 8/18/13 |
| Senior Shot+ | 21.14 | 69-1¼ | Konrad Bukowiecki (Poland) | Oslo, Norway | 6/09/16 |
| Discus | 70.13 | 230-1 | Mykyta Nesterenko (Ukraine) | Halle, Germany | 5/24/08 |
| Senior Discus+ | 65.31 | 214-3 | Mykyta Nesterenko (Ukraine | Tallinn, Estonia | 6/03/08 |
| Hammer | 85.57 | 280-9 | Ashraf Amjad Al-Saifi (Qatar) | Barcelona, Spain | 7/14/12 |
| Senior Hammer+ | 78.33 | 257-0 | Olli-Pekka Karjalainen (Finland) | Seinajöki, Finland | 8/05/99 |
| Javelin | 86.48 | 283-9 | Neeraj Chopra (India) | Bydgoszcz, Poland | 7/23/16 |
| Multi Event | ||||
| Decathlon | 8435 | Niklas Kaul (Germany) | Grosseto, Italy | 7/22-23/17 |
| (11.48, 7.20/23-7½, 15.37/50-5¼, 2.05/6-8¾, 48.42 [4170], 14.55, 48.49/159-1, 4.70/15-5, 68.05/223-3, 4:15.52 [4265]) | ||||
| Senior Decathlon+ | 8397 | Torsten Voss (East Germany) | Erfurt, East Germany | 7/06-07/82 |
| (10.76, 7.66/25-1¾, 14.41/47-3½, 2.09/6-10¼, 48.37 [4421], 14.37, 41.76/137-0, 4.80/15-9, 62.90/206-4, 4:34.04 [3976]) | ||||
| Road Events | ||||
| 10K+ | 26:46 | Rhonex Kipruto (Kenya) | Prague, Czech Republic | 9/08/18 |
| Marathon+ | 2:04:32 | Tsegaye Mekonnen (Ethiopia) | Dubai, United Arab Emirates | 1/24/14 |
| Walk Events | ||||
| 10,000 | 38:46.4 | Viktor Burayev (Russia) | Moscow, Russia | 5/20/00 |
| 10K(r) | 37:44 | Zhen Wang (China) | Beijing, China | 9/18/10 |
| 20W | 1:17:25 | Sergey Shirobokov (Russia) | Cheboksary, Russia | 6/09/18 |
as of January 17, 2023