Leonardo Mayer defeated Fabio Fognini 6-3 6-4 in the Madrid Masters round of 64 on clay. The upset overturned the form book — Fabio Fognini came in leading the head-to-head 3–1, defending last year's round of 32, but Leonardo Mayer had been the form player, winning 2 of their last 6 on clay. Leonardo Mayer narrowed the head-to-head to 3–2.
Mayer L. took it in straight sets.
Mayer L. and Fognini F. faced 5 of the same opponents in the last 12 months. Mayer L. went 2–4 (33%) against them, Fognini F. 4–3 (57%). Fognini F. came out better against 2 of 5 comparable opponents, Mayer L. against 0.
Clay: level 2–2 · Grass: Fognini F. leads 1–0
Leonardo Mayer beat Fabio Fognini 6-3 6-4. Umpiry, "Leonardo Mayer vs Fabio Fognini — Madrid Masters Round of 64", https://umpiry.com/match/2018-05-07/fognini-vs-mayer-madrid-masters-r64?utm_source=cite (as of 7 May 2018).