Juan Martin del Potro defeated Janko Tipsarevic 7-5 6-3 6-4 in the SRB vs ARG round robin on hard. The result followed the form book — Juan Martin del Potro came in leading the head-to-head 2–0. Juan Martin del Potro extended the head-to-head to 3–0.
del Potro J. took it in straight sets.
del Potro J. and Tipsarevic J. faced 10 of the same opponents in the last 12 months. del Potro J. went 7–5 (58%) against them, Tipsarevic J. 3–8 (27%). del Potro J. came out better against 4 of 10 comparable opponents, Tipsarevic J. against 1 — though 2 of those edges carry caveats (retirement).