Pedro Martinez defeated Mirza Basic 6-2 7-5 in the Roland Garros qualifying round of 64 on clay. The upset overturned the form book — Mirza Basic came in defending last year's round of 128, but Pedro Martinez had been the form player, winning 3 of their last 5 on clay.
Martinez P. took it in straight sets.
Martinez P. and Basic M. faced 1 of the same opponent in the last 12 months. Martinez P. went 1–0 (100%) against them, Basic M. 1–0 (100%).
Only 1 common opponent — too few for any conclusion. Shown without assessment.
Pedro Martinez beat Mirza Basic 6-2 7-5. Umpiry, "Pedro Martinez vs Mirza Basic — Roland Garros Qualifying Round of 64", https://umpiry.com/match/2019-05-22/basic-vs-martinez-roland-garros-q64?utm_source=cite (as of 22 May 2019).