Traditionally, Mexico has been the main supplier of imports of fresh vegetables from the United States. Today, trade is so dynamic that it has allowed other countries to also have a presence in US markets. For the case of cucumber; Canada, Honduras, the Dominican Republic, Spain and the Netherlands, are some examples of the competitive countries that Mexican exports are facing, to such a degree that they have been able to compete with a homogeneous product with health, quality and safety, the market share that served our country. This paper aims to show how even with the competitive advantage that Mexico has lost position. To exhibit this behavior, an index of revealed export benefits adjusted to normal behavior (VREA) was constructed using seven of the main horticultural products: tomato, onion, eggplant, asparagus, cauliflower, broccoli, peppers and cucumber. the period between 2000 and 2014, with the main result being the loss of presence in the US market (from 84.6% to 69.6% in 14 years) as a result of the increase in the Canadian market share.