Otto Virtanen defeated Yann Marti 6-3 6-3 in the M25 Biel 1 qualifying round of 16 on hard.
Virtanen O. took it in straight sets.
Otto Virtanen beat Yann Marti 6-3 6-3. Umpiry, "Otto Virtanen vs Yann Marti — M25 Biel 1 Qualifying Round of 16", https://umpiry.com/match/2021-03-30/marti-vs-virtanen-m25-biel-1-q16?utm_source=cite (as of 30 March 2021).