Guy Den Heijer defeated Vladimir Ivanov 6-3 7-6 in the M25 Alkmaar 1 qualifying round of 16 on clay.
Den Heijer G. took it in straight sets.
Guy Den Heijer beat Vladimir Ivanov 6-3 7-6(6). Umpiry, "Guy Den Heijer vs Vladimir Ivanov — M25 Alkmaar 1 Qualifying Round of 16", https://umpiry.com/match/2021-06-21/heijer-vs-ivanov-m25-alkmaar-1-q16?utm_source=cite (as of 21 June 2021).