Based on a survey of rice contract farming for export in Cambodia, this paper uses simple mean comparison, propensity score matching comparison, and switching regression comparison to assess the impact of contract farming on farmers' performance. Farmers with larger family sizes, younger and more educated household heads, less asset value, and those with farm locations closer to the highway are more likely to join the contract. The results provide evidence that contract farming of non-certified organic rice has a positive impact on farmers' profitability.