Grigoriy Lomakin defeated Karan Singh 6-2 7-6 in the M15 Tehran 2 round of 16 on clay. The upset overturned the form book — Karan Singh came in ranked #452, leading the head-to-head 1–0. Grigoriy Lomakin claimed a first win over Karan Singh in two meetings, levelling the head-to-head at 1–1.
Lomakin G. took it in straight sets.
Clay: Lomakin G. leads 1–0 · Hard: Singh K. leads 1–0
Grigoriy Lomakin beat Karan Singh 6-2 7-6(6). Umpiry, "Grigoriy Lomakin vs Karan Singh — M15 Tehran 2 Round of 16", https://umpiry.com/match/2023-06-15/lomakin-vs-singh-m15-tehran-2-r16?utm_source=cite (as of 15 June 2023).