Mexico competed at the 2011 World Championships in Athletics from August 27 to September 4 in Daegu, South Korea. A team of 10 athletes was announced to represent the country in the event. The team was led by race walker Eder Sánchez, bronze medalist at the last world championships.
Results
Men
| Athlete | Event | Preliminaries | Heats | Semifinals | Final | ||||
|---|---|---|---|---|---|---|---|---|---|
| Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | ||
| Juan Carlos Romero Bernal | 10,000 metres | 29:38.38 | 16 | ||||||
| Eder Sánchez Terán | 20 kilometres walk | 1:23:05 | 15 | ||||||
| Horacio Nava Reza | 20 kilometres walk | 1:24:15 | 20 | ||||||
| Diego Flores Hinojosa | 20 kilometres walk | 1:30:00 | 35 | ||||||
| Edgar Hernández Martínez | 50 kilometres walk | 3:54:46 SB | 18 | ||||||
| José Leyver Ojeda Blas | 50 kilometres walk | 3:55:37 | 19 | ||||||
| Omar Zepeda León | 50 kilometres walk | 3:56:41 | 21 | ||||||
| Edgar Rivera Morales | High jump | 2.21 | 26 | Did not advance | |||||
| Giovanni Alessandro Lanaro Mercado | Pole vault | 5.50 | 21 | Did not advance | |||||
Women
| Athlete | Event | Preliminaries | Heats | Semifinals | Final | ||||
|---|---|---|---|---|---|---|---|---|---|
| Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | ||
| María Guadalupe Sánchez Gómez | 20 kilometres walk | DSQ | |||||||
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