Radu Albot advanced when C. O'Connell retired 6-3 0-0 in the Stuttgart qualifying round of 16. Radu Albot extended the head-to-head to 2–0.
Albot R. advanced when O'Connell C. retired.
Grass: Albot R. leads 1–0 · Hard: Albot R. leads 1–0
Radu Albot beat C. O'Connell 6-3 0-0 after C. O'Connell retired. Umpiry, "Radu Albot vs C. O'Connell — Stuttgart Qualifying Round of 16", https://umpiry.com/match/2021-06-07/albot-vs-o-connell-stuttgart-q16?utm_source=cite (as of 7 June 2021).