Sven Lah defeated Constantin Frantzen 6-3 1-6 10-4 in the M15 Lubbock 1 qualifying round of 16 on hard.
Lah S. came through in three sets.
Sven Lah beat Constantin Frantzen 6-3 1-6 10-4. Umpiry, "Sven Lah vs Constantin Frantzen — M15 Lubbock 1 Qualifying Round of 16", https://umpiry.com/match/2021-09-27/frantzen-vs-lah-m15-lubbock-1-q16?utm_source=cite (as of 27 September 2021).