The most dynamic Mexican agrarian export value chains are vegetables (tomatoes, peppers and other fresh vegetables) and fruits (avocado, strawberries, blackberries, blueberries), usually produced under system of contract farming and protected agriculture. The article focuses on quantitative analysis of competitiveness of tomato (Solanum lycopersicum) in international trade. Tomatoes are the most important product of Mexican agricultural exports to the United States, with a value of 2.11 billion USD and a volume of 1.75 million tons in 2016. The quantitative analysis is conducted using indicators that present the greatest explanatory power and consistency: Revealed Comparative Advantage and Constant Market Participation.