Luis David Martinez defeated Juan Carlos Spir 6-4 2-6 6-2 in the Colombia F4 round of 32 on clay. The upset overturned the form book — Juan Carlos Spir came in leading the head-to-head 1–0. Luis David Martinez claimed a first win over Juan Carlos Spir in two meetings, levelling the head-to-head at 1–1.
Martinez L. came through in three sets.
Clay: Martinez L. leads 1–0 · Hard: Spir J. leads 1–0
Luis David Martinez beat Juan Carlos Spir 6-4 2-6 6-2. Umpiry, "Luis David Martinez vs Juan Carlos Spir — Colombia F4 Round of 32", https://umpiry.com/match/2014-08-25/martinez-vs-spir-colombia-f4-r32?utm_source=cite (as of 25 August 2014).