| Sex | Athlete | DOB | Discipline | Round | POS | Mark |
|---|---|---|---|---|---|---|
| M | Matheus LIMA | 01/06/2003 | 400 Metres | Round 1 | 1 | 45.79 |
| M | Jadson Erick SOARES LIMA | 01/04/2003 | 400 Metres | Round 1 | 4 | 47.74 |
| M | Elton PETRONILHO | 27/12/2001 | Triple Jump | Final | 11 | 16.28 |
| M | Almir DOS SANTOS | 04/09/1993 | Triple Jump | Final | DQ | |
| M | Guilherme ORENHAS | 10/09/1998 | 800 Metres | Round 1 | DNF | |
| M | Thiago PRATA | 26/04/1999 | 60 Metres | Round 1 | 6 | 6.81 |
| W | July FERREIRA DA SILVA | 27/10/1994 | 1500 Metres | Round 1 | 8 | 4:22.24 |
| W | Anny Caroline DE BASSI | 16/06/1997 | 400 Metres | Round 1 | 5 | 56.67 |
| M | Matheus LIMA | 01/06/2003 | 400 Metres | Semi-Finals | 3 | 46.22 |
| Sex | Athlete | DOB | Discipline | Round | POS | Mark |
|---|---|---|---|---|---|---|
| M | José Fernando FERREIRA | 27/03/1999 | 60 Metres | Heptathlon | 2 | 6.94 |
| M | Pedro DE OLIVEIRA | 18/01/1996 | 60 Metres | Heptathlon | 4 | 6.96 |
| M | Rafael PEREIRA | 08/04/1997 | 60 Metres Hurdles | Round 1 | 3 | 7.65 |
| M | Eduardo RODRIGUES | 08/10/1995 | 60 Metres Hurdles | Round 1 | 2 | 7.75 |
| M | José Fernando FERREIRA | 27/03/1999 | Long Jump | Heptathlon | 4 | 7.34 |
| M | Pedro DE OLIVEIRA | 18/01/1996 | Long Jump | Heptathlon | 5 | 7.20 |
| W | Ana Carolina AZEVEDO | 19/05/1998 | 60 Metres | Round 1 | 4 | 7.31 |
| M | Pedro DE OLIVEIRA | 18/01/1996 | Shot Put | Heptathlon | 12 | 13.61 |
| M | José Fernando FERREIRA | 27/03/1999 | Shot Put | Heptathlon | 9 | 14.50 |
| M | José Fernando FERREIRA | 27/03/1999 | High Jump | Heptathlon | 9 | 1.92 |
| M | Pedro DE OLIVEIRA | 18/01/1996 | High Jump | Heptathlon | 11 | 1.89 |
| W | Regiclecia CANDIDO | 31/01/2002 | Triple Jump | Final | 13 | 13.40 |
| M | Rafael PEREIRA | 08/04/1997 | 60 Metres Hurdles | Semi-Finals | 4 | 7.67 |
| M | Eduardo RODRIGUES | 08/10/1995 | 60 Metres Hurdles | Semi-Finals | 8 | 7.85 |
| M | Matheus LIMA | 01/06/2003 | 400 Metres | Final | 6 | 46.94 |
| Sex | Athlete | DOB | Discipline | Round | POS | Mark |
|---|---|---|---|---|---|---|
| M | Pedro DE OLIVEIRA | 18/01/1996 | 60 Metres Hurdles | Heptathlon | 2 | 8.04 |
| M | José Fernando FERREIRA | 27/03/1999 | 60 Metres Hurdles | Heptathlon | 6 | 7.96 |
| W | Micaela Rosa DE MELLO | 07/03/2000 | 60 Metres Hurdles | Round 1 | 3 | 8.06 |
| M | José Fernando FERREIRA | 27/03/1999 | Pole Vault | Heptathlon | 3 | 5.20 |
| M | Pedro DE OLIVEIRA | 18/01/1996 | Pole Vault | Heptathlon | 11 | 3.70 |
| W | Micaela Rosa DE MELLO | 07/03/2000 | 60 Metres Hurdles | Semi-Finals | DQ | |
| M | Welington MORAIS | 06/09/1996 | Shot Put | Final | 11 | 20.13 |
| M | Willian DOURADO | 06/01/1994 | Shot Put | Final | 10 | 20.24 |
| M | Pedro DE OLIVEIRA | 18/01/1996 | 1000 Metres | Heptathlon | 7 | 2:44.04 |
| M | José Fernando FERREIRA | 27/03/1999 | 1000 Metres | Heptathlon | 11 | 2:50.93 |
| W | Brazil | 4x400 Metres Relay | Final | DNS |