Christopher Oconnell defeated Radu Albot 4-6 6-3 7-5 in the Halle qualifying round 1 on grass. The upset overturned the form book — Radu Albot came in leading the head-to-head 1–0. Christopher Oconnell claimed a first win over Radu Albot in two meetings, levelling the head-to-head at 1–1.
Oconnell C. came through in three sets.
Grass: Oconnell C. leads 1–0 · Hard: Albot R. leads 1–0
Christopher Oconnell beat Radu Albot 4-6 6-3 7-5. Umpiry, "Christopher Oconnell vs Radu Albot — Halle Qualifying Round 1", https://umpiry.com/match/2021-06-14/albot-vs-oconnell-halle-q1?utm_source=cite (as of 14 June 2021).