Achim Beierlorzer made it two wins from two as coach of Mainz with a 2-1 comeback triumph over 10-man Eintracht Frankfurt on Monday.
Second half goals from Karim Onisiwo and Adam Szalai earned maximum points for hosts Mainz, who went 12th with the win and eased their Bundesliga relegation worries.
Frankfurt led through Martin Hinteregger but had Dominik Kohr sent off just before the interval for denying a goalscoring opportunity.
It proved decisive as 10th placed Eintracht missed the chance to close in on the European spots.
Leaders Borussia Moenchengladbach beat Freiburg 4-2 on Sunday while champions Bayern Munich are fourth after Saturday's 2-1 home loss to Bayer Leverkusen.