This empirical project analyzes the impact of buyer-side transparency on the supplier revenue earned via the Cup of Excellence (COE), a world-wide compe- tition and online procurement platform for smallholder specialty coffee farm- ers. COE consists of multiple country specific ”cupping competition” resulting in rank-ordered sets of coffee lots, which are then offered to buyers via a series of online Helmsman style auctions. Extant research has considered questions such as the impact of lot size, quality, and supplier-side platform transparency on ex-post pricing. However, in our project, we consider questions related to buyer-side platform transparency.