Forest Green 1-2 Tamworth
Mark Wright's first goal for Tamworth saw them secure victory at Forest Green for only their third win this season.
The Lambs took the lead when Richie Baker slotted in from the penalty spot after Eddie Oshodi fouled Wayne Thomas.
Matt Taylor drilled home from 12 yards to bring the hosts level before the break, but Lloyd Kerry set up Wright to fire the Lambs back in front.
Rovers saw James Norwood sent off for a second yellow late on, as they suffered their first home loss this term.