2024 World Athletics U20 Championships – Men's 4 × 100 metres relay
The men's 4 × 100 metres relay at the 2024 World Athletics U20 Championships was held at the Estadio Atlético de la VIDENA in Lima, Peru on 30 and 31 August 2024.

Records
U20 standing records prior to the 2024 World Athletics U20 Championships were as follows:
 Record Nation Mark Location DateWorld U20 Record38.51Nairobi, Kenya22 August 2021Championship Record38.51Nairobi, Kenya22 August 2021World U20 Leading38.23Gainesville, United States30 March 2024

Results
Heats
First 1 of each heat (Q) plus 4 fastest times (q) qualify to Final.
Heat 1
 Rank Lane Nation Athletes Time Notes16Jeong-yoon Kim, Joel-jin Nwamadi, Dong-Jin Kim, Eui-chan Hwang39.71, 22Gaël Delaumenie, Ylann Bizasene, Dejan Ottou, Hugo Jacquet-Dzong39.73, 38Cody Hasler, Frankleen Newah-Jarfoi, Archer McHugh, Sebastian Sultana39.8043Carlos Dorado, Jorge Hernández, Rodrigo Fito, Alejandro Rueda40.2157Shaquane Toussaint, Emilio Bishop, Ethan Sam, Samuel Green40.634Marc Hofer, Jonathan Gou Gomez, Fionn Bolliger, Kevin Ray5Tshepo Tyantini, Bertie Cruywagen, Bradley Nkoana, Neo Modibe

Heat 2
 Rank Lane Nation Athletes Time Notes15Yat Chan, King Yip, Chun Kwok, James Chan39.9723Malith Thamel, Dineth Weeraratna, Indusara Rajamuni, Merone Wijesinghe40.1432Peng Kong, Jinxian He, Youchao Huang, Keli Zeng40.1844Brendon Muvimi, David Nyamufarira, Caledon Ruwende, Panashe Nhenga40.4057László Merényi, Kalle Hirvi, Alexander Mitchell, Juho Venäläinen40.4669Paolo Silva, Aron Earl, Adrian Alonso, Mariano Fioleduardo41.806Matheus Geronimo, Wesley Dionisio, Joao Santini, Ryan De Souza8Brayden Williams, James Bauman, Braylon Thompson, Cordial Vann

Heat 3
 Rank Lane Nation Athletes Time Notes18Wirayut Daenkhanob, Sarawut Nuansi, Chutithat Pruksorranan, Puripol Boonson39.56, 22Fabian Powell, Joel Masters, Dean Patterson, Teddy Wilson39.75, 35Maximilian Achhammer, Noah Müller, Felix Schulze, Milian Zirbus40.0646Jakub Toužín, Filip Vojáček, Jiří Synek, Dominik Mráček40.4159Isaac Chandra, Pishon Haughton, Junior Imoukhuede, Keon Rude40.7067Nicolas Daudet, Benjamin Aravena, Tomas Leon, Raimundo Velasco41.6273Radostin Milenov, Nikola Karamanolov, Hristivan Kasabov, Hristo Iliev41.924Fukuto Komuro, Kei Wakana, Katsuki Sato, Naoki Nishioka

Heat 4
 Rank Lane Nation Athletes Time Notes19Jace Witter, Gary Card, Nyrone Wade, Deandre Daley39.54, 27Che Wickham, Kadeem Chinapoo, Hakeem Chinapoo, Dylan Woodruffe39.77, 32Caleb John, Caleb Joshua, Oseiwe Salami, Chidera Ezeakor40.2843Valentin Jensen, Hector Wandt, Eiri Glerfoss, Sophus Ramsgaard Jensen40.3154Eduardo Loya, Alejandro Cardenas, Jonathan Padilla, Rafael Buelna40.3466Fabrizio Caporusso, Mattia Silvestrelli, Eduardo Longobardi, Daniele Inzoli40.4475Michał Gorzkowicz, Sebastian Libura, Tomasz Bajraszewski, Adrian Lepionka40.998

Final
 Rank Lane Nation Athletes Time Notes7Jace Witter, Gary Card, Nyrone Wade, Deandre Daley39.184Jake Odey-Jordan, Joel Masters, Dean Patterson, Teddy Wilson39.208Wirayut Daenkhanob, Sarawut Nuansi, Chutithat Pruksorranan, Puripol Boonson39.3949Gaël Delaumenie, Ylann Bizasene, Dejan Ottou, Hugo Jacquet-Dzong39.4352Frankleen Newah-Jarfoi, Sebastian Sultana, Zachary Della Rocca, Gout Gout39.6466Jeong-yoon Kim, Joel-jin Nwamadi, Dong-Jin Kim, Hyun-joo Na39.8073Che Wickham, Kadeem Chinapoo, Hakeem Chinapoo, Dylan Woodruffe39.9985Yat Chan, Magnus Johannsson, Chun Kwok, James Chan40.26

References

Relay 4 x 100 metres
Category:Relays at the World Athletics U20 Championships