| Sex | Athlete | DOB | Discipline | Round | POS | Mark |
|---|---|---|---|---|---|---|
| X | Mexico U20 | 4x400 Metres Relay | Round 1 | 5 | 3:26.30 | |
| M | Amado Kalid AMADOR | 02/04/2007 | 800 Metres | Round 1 | 5 | 1:51.56 |
| M | Karol Emilio PICAZO | 14/01/2007 | 800 Metres | Round 1 | 8 | 1:56.75 |
| W | Kendra Silvery DUANY | 01/02/2009 | Discus Throw | Qualification | 8 | 51.10 |
| W | Kenya CUAHUTLE | 05/05/2009 | 5000 Metres | Final | 23 | 17:05.87 |
| Sex | Athlete | DOB | Discipline | Round | POS | Mark |
|---|---|---|---|---|---|---|
| W | Kendra Silvery DUANY | 01/02/2009 | Shot Put | Qualification | 14 | 13.98 |
| M | Mario Francisco VAZQUEZ | 10/08/2007 | 3000 Metres Steeplechase | Round 1 | 14 | 9:39.47 |
| M | Juan Francisco IBARRA | 17/04/2007 | 400 Metres Hurdles | Round 1 | 4 | 51.11 |
| M | Maximiliano SAUCEDO | 02/02/2007 | 400 Metres Hurdles | Round 1 | 9 | 53.84 |
| X | Mexico U20 | 4x100 Metres Relay | Round 1 | 6 | 44.67 | |
| W | Alisson Judith MARTINEZ | 13/06/2008 | 400 Metres | Round 1 | 5 | 55.53 |
| W | Kenya MATURANA | 21/01/2008 | 400 Metres | Round 1 | 3 | 53.31 |
| M | Gerardo HERNÁNDEZ | 17/01/2007 | 400 Metres | Round 1 | DQ | |
| M | Esteban AVENA | 16/07/2008 | 400 Metres | Round 1 | 7 | 47.82 |
| W | Kenya MATURANA | 21/01/2008 | 400 Metres | Semi-Finals | 9 | 54.97 |
| Sex | Athlete | DOB | Discipline | Round | POS | Mark |
|---|---|---|---|---|---|---|
| W | Cristina GARCIA | 01/01/2008 | 100 Metres Hurdles | Round 1 | 9 | 14.30 |
| M | Amado Kalid AMADOR | 02/04/2007 | 800 Metres | Semi-Finals | 9 | 1:51.32 |
| Sex | Athlete | DOB | Discipline | Round | POS | Mark |
|---|---|---|---|---|---|---|
| W | Natalia MENDIOLA | 24/10/2008 | 5000 Metres Race Walk | Final | 8 | 22:27.54 |
| W | Naomi LUIS | 17/01/2008 | 5000 Metres Race Walk | Final | 27 | 23:45.38 |
| W | Paola DEL REAL | 19/11/2007 | Triple Jump | Qualification | DQ | |
| M | Osvaldo MIRAMONTES | 13/08/2008 | 5000 Metres Race Walk | Final | 7 | 19:34.07 |
| M | Emiliano BARBA | 23/03/2007 | 5000 Metres Race Walk | Final | DQ | |
| W | Mexico U20 | 4x400 Metres Relay | Round 1 | 8 | 3:48.07 | |
| M | Mexico U20 | 4x400 Metres Relay | Round 1 | 6 | 3:11.15 | |
| M | Brandon Ariel DELGADO | 20/08/2008 | Discus Throw (1.750kg) | Qualification | 10 | 56.33 |
| M | Juan Francisco IBARRA | 17/04/2007 | 400 Metres Hurdles | Semi-Finals | 9 | 52.31 |
| W | Kenya CUAHUTLE | 05/05/2009 | 3000 Metres | Final | DNS |