FC Augsburg suffered a heavy 1–4 defeat at home to FSV Mainz 05 on Saturday, 20 September 2025, in Matchday 4 of the Bundesliga season. The match kicked off at 13:30 UTC at the WWK Arena, with referee Daniel Schlager officiating. Mainz led 2–0 at half-time and extended their advantage in the second half, leaving Augsburg with a single goal in reply as the visitors ran out convincing winners.

The result left Augsburg with a difficult early-season reality. After four matchdays in the 2025–26 Bund...