| XLIV South American U20 Championships in Athletics | |
| Host City: | Lima, Peru  |
| Dates: | 9–10 July |
| Stadium: | Villa Deportiva Nacional |
| Nations Participating: | 10 |
| Events: | 44 |
| Level: | Junior |
| Previous: | 2019 Cali |
| Next: | 2023 Bogotá |
The 44th South American U20 Championships in Athletics were held at Villa Deportiva Nacional in Lima, Peru, between 9 and 10 July.[1]
| 100 metres (+1.5 m/s) | Tomás Mondino | 10.43 | Bautista Diamante | 10.53 | Jhon Paredes | 10.55 | |
| 200 metres (+1.6 m/s) | Tomás Mondino | 21.24 | Bautista Diamante | 21.27 | Katriel Angulo | 21.44 | |
| 400 metres | Vinícius Galeno | 48.40 | Miguel Maldonado | 48.73 | Martín Kouyoumdjian | 48.90 | |
| 800 metres | Leonardo de Jesus | 1:48.78 | Pedro Emmert | 1:51.70 | Pedro Luiz de Souza | 1:52.71 | |
| 1500 metres | Dylan Van der Hock | 3:50.73 | Brayan Jara | 3:52.33 | Jânio Varjão | 3:52.45 | |
| 3000 metres | Matías Reynaga | 8:19.81 | Rolando Ortiz | 8:20.34 | David Ninavia | 8:23.01 | |
| 5000 metres | David Ninavia | 14:29.0 | Matías Reynaga | 14:43.5 | Alex Caiza | 14:51.2 | |
| 110 metres hurdles (99 cm) (-0.2 m/s) | Fabricio Pereira | 13.73 | John Paredes | 13.75 | Kevin Simisterra | 14.26 | |
| 400 metres hurdles | Gabriel dos Santos | 52.33 | César Parra | 52.84 | Neider Abello | 53.34 | |
| 3000 m steeplechase | Dylan Van der Hock | 9:07.74 | Natan Nepomuceno | 9:08.01 | Vinícius Alves | 9:11.08 | |
| 4 × 100 m relay | 40.30 | 40.63 | 41.09 | ||||
| 4 × 400 m relay | 3:09.37 | 3:13.43 | 3:18.76 | ||||
| 10,000 m walk | Cristián Rojas | 43:46.33 | Saul Wanputsrit | 44:34.63 | Mateo Romero | 45:37.89 | |
| High jump | Anderson Asprilla | 2.07 | Emiliano Benítez | 2.04 | Roger Alves | 2.04 | |
| Pole vault | Austin Ramos | 4.90 | Nicolas Martín | 4.65 | Only 2 finishers | ||
| Long jump | Jhon Berrio | 7.61 | Gabriel Boza | 7.50 | Julio Cesar Mendes | 7.06 | |
| Triple jump | Gregory Palacios | 15.51 | Oscar Comedta | 15.24 | Felipe da Silva | 15.20 | |
| Shot put (6 kg) | Ronald Grueso | 17.88 | Vinicius Avancini | 17.31 | Juan Manuel Arrieguez | 17.02 | |
| Discus throw (1.75 kg) | Ronald Grueso | 57.78 | Rodrigo Trenhago | 52.23 | Steven Cevallos | 51.32 | |
| Hammer throw (6 kg) | Sebastián Tommasi | 68.83 | Luis Núñez | 65.99 | Cipriano Riquelme | 63.33 | |
| Javelin throw | Juan Amarilla | 62.72 | Lars Flaming | 60.70 | Lautaro Techera | 60.37 | |
| Decathlon (junior) | Arnaldo Kowales Junior | 6511 | Matheus Pires | 6433 | Ricardo Mireles | 6388 | |
| 100 metres (+1.5 m/s) | Natalia Linares | 11.68 | Nicole Chala | 11.98 | Ana Cecilia de Oliveira | 12.07 | |
| 200 metres (+0.1 m/s) | Erica Cavalheiro | 24.52 | Ana Cecilia de Oliveira | 24.88 | María Ignacia Aspillaga | 24.89 | |
| 400 metres | Erica Cavalheiro | 54.08 | Taimara de Melo | 57.13 | Marcela Reyes | 57.75 | |
| 800 metres | Laura Acuña | 2:10.79 | Angeli Garrido | 2:12.23 | Lindsey Lopes | 2:12.89 | |
| 1500 metres | Carmen Alder | 4:24.53 | Laura Acuña | 4:26.94 | Stefany López | 4:32.02 | |
| 3000 metres | Carmen Alder | 9:26.51 | Sofía Mamani | 9:37.07 | Paula Vega | 10:07.42 | |
| 5000 metres | Sofía Mamani | 16:41.34 | Paula Vega | 17:18.91 | Jimena Apaza | 17:57.61 | |
| 100 metres hurdles (+0.6 m/s) | Daniele Campigotto | 13.99 | Isabel Urrutia | 14.05 | Catalina González | 14.74 | |
| 400 metres hurdles | María Alejandra Murillo | 1:01.69 | Camille de Oliveira | 1:01.73 | Laiane de Almeida | 1:03.50 | |
| 3000 m steeplechase | Stefany López | 10:14.81 | Veronica Huacasi | 10:28.81 | Jimena Apaza | 11:07.43 | |
| 4 × 100 m relay | 46.35 | 47.38 | 48.83 | ||||
| 4 × 400 m relay | 3:51.17 | 3:53.43 | 4:05.06 | ||||
| 10,000 m walk | Gabriela Muniz | 47:11.69 | Paula Valdez | 47:17.82 | Ines Condo | 49:07.18 | |
| High jump | Arielly Rodrigues | 1.79 | Silvina Gil | 1.73 | Joaquina Dura | 1.73 | |
| Pole vault | Luciana Gómez | 3.90 | Tatiana Bedoya | 3.57 | Sofía Hryncyszyn | 3.32 | |
| Long jump | Natalia Linares | 6.14 | Lissandra Campos | 6.07 | Vanessa dos Santos | 5.93 | |
| Triple jump | Whaylla de Oliveira | 12.63 | Estrella Lobo | 12.52 | Indiana Holgado | 12.46 | |
| Shot put | Taniele da Silva | 12.66 | Nicole Valencia | 12.29 | Giovanna Costa | 11.71 | |
| Discus throw | Valentina Ulloa | 44.89 | Ana Luz Sarli | 42.03 | Giovanna Costa | 39.95 | |
| Hammer throw | Valentina Claveria | 59.05 | Nereida Santacruz | 56.25 | Yennifer Barahona | 52.45 | |
| Javelin throw | Valentina Barrios | 47.97 | Manuela Rotundo | 46.45 | Fiorella Veloso | 44.02 | |
| Heptathlon | Giovana Corradi | 5090 | Ana Luisa Ferraz | 4995 | Mariam Buenanueva | 4778 | |
| 4 × 400 m relay | 3:28.33 | 3:35.95 | 3:41.79 |
