Panagiotis-Gerasimos Grammatikakis defeated Nikolaos Chatziavraam 1-6 7-6 10-7 in the M15 Heraklion qualifying round of 64 on hard. The result followed the form book — Panagiotis-Gerasimos Grammatikakis came in leading the head-to-head 1–0. Panagiotis-Gerasimos Grammatikakis extended the head-to-head to 2–0.
Grammatikakis P. came through in three sets.
Panagiotis-Gerasimos Grammatikakis beat Nikolaos Chatziavraam 1-6 7-6(5) 10-7. Umpiry, "Panagiotis-Gerasimos Grammatikakis vs Nikolaos Chatziavraam — M15 Heraklion Qualifying Round of 64", https://umpiry.com/match/2026-10-04/chatziavraam-vs-grammatikakis-m15-heraklion-q64?utm_source=cite (as of 4 October 2026).